CN102749539A - Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference - Google Patents

Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference Download PDF

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CN102749539A
CN102749539A CN 201210217966 CN201210217966A CN102749539A CN 102749539 A CN102749539 A CN 102749539A CN 201210217966 CN201210217966 CN 201210217966 CN 201210217966 A CN201210217966 A CN 201210217966A CN 102749539 A CN102749539 A CN 102749539A
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frequency
spectrum
test
radiation
electromagnetic
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CN 201210217966
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CN102749539B (en )
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刘亚奇
张宇
李圆圆
杜威
谢树果
陈曦
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北京航空航天大学
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Abstract

The invention discloses a fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference. A receiving antenna of the system is arranged on a frequency spectrum tester, a chuck end of a current probe is clamped on a cable through which tested objects are connected, the other end of the current probe is connected on the frequency spectrum tester which is connected with a computer; and the computer is internally provided with a fast electromagnetic compatibility test and diagnosis unit. The fast electromagnetic compatibility test and diagnosis unit is used for fast testing the electromagnetic-transmitted frequency spectrum of the tested objected on site, conducting analysis and diagnosis to the electromagnetic-transmitted frequency spectrum, and judging whether the electromagnetic transmission characteristic exceeds a standard limit value or has abnormality. The fast electromagnetic compatibility test and diagnosis system has important meaning on solving the electromagnetic compatibility problem and monitoring and evaluating the electromagnetic environment.

Description

一种具有量化电磁干扰的电磁兼容快速测试诊断系统技术领域 EMC having quantify EMI rapid test technology field diagnostic system

[0001] 本发明涉及的是一种具有量化电磁干扰的电磁兼容快速测试诊断系统,属于电磁兼容技术中的电磁干扰测试技术领域。 [0001] The present invention relates to an electromagnetic compatibility quantized electromagnetic interference having a rapid diagnostic test system, belonging to the technical field of electromagnetic interference testing EMC art.

背景技术 Background technique

[0002] 随着科学技术的发展,越来越多的电子、电气设备进入社会的各个角落。 [0002] With the development of science and technology, more and more electronic, electrical equipment enter every corner of society. 在有限的空间内,电子设备、电气设备密度增加,设备的功率越来越大,无线电频谱日益拥挤,致使有限空间的电磁环境日益恶化。 In a limited space, electronic equipment, electrical equipment density increases, the power plant is growing, increasingly crowded radio spectrum, resulting in a limited space electromagnetic environment deteriorating. 如何在时间、空间、频谱资源有限的情况下,使处于同一电磁环境中的电子设备、电气设备互不干扰,并正常运行,成为一个重要的问题,即电磁兼容(EMC一Electromagnetic Compatibility)所需要解决的问题。 How time, space, limited spectrum resources, so that in the same electromagnetic environment of electronic equipment, electrical equipment without disturbing each other, and operating normally, become an important issue, namely electromagnetic compatibility (EMC a Electromagnetic Compatibility) needed solved problem. [0003] 人民邮电出版社于2006年9月14日出版的《工程电磁兼容》(作者:V. PrasadKodali,译者:陈淑凤,高攸纲,苏东林,周璧华)一书中指出电磁兼容是指器件、设备或者系统既能够在它所处的电磁环境中满意地发挥其功能,而与此同时又没有把超过容限的电磁骚扰引入此环境中的任何其他的器件、设备或者系统的能力。 [0003] "Electromagnetic Compatibility Engineering" People Post Press, 2006 September 14 issue of (Author: V PrasadKodali, Translator: Chen Shufeng, high Yau Gang, calculations of the 3 Zhoubi Hua) a book that refers to electromagnetic compatibility devices, equipment or the system can only fulfill its function in an electromagnetic environment in which it is located satisfaction, while at the same time they did not exceed the tolerance of electromagnetic disturbance ability of any other device, equipment or system is introduced in this environment. 器件、设备或者系统在工作时,不可避免的产生对外的电磁发射。 Device, apparatus or system at work, inevitably generate external electromagnetic emission. 当这种发射超过一定容限时,就可能造成环境内的其他器件、设备或者系统性能下降,即出现了电磁干扰现象。 When this emission exceeds a certain tolerance limit, it could cause a decline in other devices, equipment or system performance within the environment, namely the emergence of the phenomenon of electromagnetic interference.

[0004] 为了检验被试品的电磁发射是否超标,需要进行电磁干扰测试。 [0004] In order to test the test electromagnetic emission is exceeded, the need for electromagnetic interference testing. 目前,电磁干扰测试最常用的实验室方法是使用微波暗室。 Currently, the most commonly used electromagnetic interference testing laboratory is to use anechoic chamber. 微波暗室是一种室内测试设施,对外部电磁环境具有较高的隔离度,因此微波暗室尤其适合涉及微弱信号的高灵敏度测试。 Anechoic chamber is an indoor test facility, has a high degree of isolation from external electromagnetic environment, especially in an anechoic chamber to a high sensitivity for weak test signal. 然而,微波暗室的建造成本一般是非常高的。 However, construction costs anechoic chamber is generally very high.

[0005] 电磁干扰从它的源到达被干扰设备的机制很多,主要是辐射和传导。 [0005] EMI interference mechanism reaches its equipment from many sources, mainly radiation and conduction. 对被试品的辐射发射进行测试,将被试品置于屏蔽暗室中,接收天线置于距被试品固定的测试距离(lm、3m或10m),并通过精确校准过的电缆接至测试辐射发射的接收机,将测试辐射发射的接收机获得的被试品发射电平输入计算机,在计算机内与相应的极限值进行比较,从而判断被试品辐射发射是否超标。 Cable radiation emitted by the test sample, the test sample is placed in a dark room shielding, the receiving antenna is positioned away from fixed test sample (lm, 3m or 10m), and by precisely calibrated is coupled to the test receiver radiation emitted, the emitted radiation will test the receiver sample obtained is input into the computer the transmission level, compared to the corresponding limit values ​​in the computer to determine whether the radiation emitted by the test exceeded. 传导发射测试包括电缆传导发射和端口传导发射等,测试思路与辐射发射测试类似。 Conduction emission testing and includes a cable-conduction emission conduction emission ports and the like, a test similar to test ideas and radiation emission. 不同的是,电缆传导发射测试不使用接收天线而是使用电流探头检测电缆传导,端口传导发射测试使用直连方式检测端口传导。 The difference is that, without the use of cable conduction emission testing but reception antenna current probe sensing cable conduction, conduction emission port tested using direct conduction mode detector port. (见文献:工程电磁兼容,V. Prasad Kodali,人民邮电出版社,Page (s) :116_120)。 (See literature: engineering EMC, V Prasad Kodali, Posts & Telecom Press, Page (s):. 116_120).

[0006] 这些测试均在暗室内完成,测试过程比较复杂。 [0006] These tests are completed in a dark room, the testing process is more complicated.

发明内容 SUMMARY

[0007] 随着电子、电气设备日益增多,设备间的电磁兼容问题日益突出,如何判定一台设备(被试品)是否对外界产生电磁干扰成为一个重要问题。 [0007] As electronic and electrical equipment growing, electromagnetic compatibility problems between devices have become increasingly prominent, how to judge a piece of equipment (the test) if electromagnetic interference of the outside world has become an important issue. 为了克服微波暗室方法成本高、操作实现复杂的不足,本发明提供一种具有量化电磁干扰的电磁兼容快速测试诊断系统。 To overcome the high cost method anechoic chamber, the operation of complex deficiencies, the present invention provides a quantization EMC EMI rapid test diagnostic system. 该系统基于Labview搭建的软件平台结合硬件设备,用以现场快速检测被试品的电磁发射频谱,并对其电磁发射频谱进行分析诊断,判断其电磁发射特性是否发生异常或超出极限值标准。 The system is based Labview software platform to build a combination of hardware devices for rapid detection of the electromagnetic field is the emission spectrum of the test sample, and its electromagnetic emission spectrum analysis and diagnosis, it is determined whether the electromagnetic emission characteristic abnormality or exceed the limit standard. 本发明系统可以方便快捷的对被试品进行现场电磁干扰测试、分析、诊断。 The system of the present invention may be convenient for the test site electromagnetic interference testing, analysis, diagnosis.

[0008] 本发明的一种具有量化电磁干扰的电磁兼容快速测试诊断系统,该系统通过计算机交互界面控制检测测试的进行,获取频谱相关信息。 [0008] A according to the present invention having a quantization EMC EMI rapid diagnostic test system for the detection test system is controlled by a computer interface, acquire spectral information. 在检测测试界面下选择测试所用的测量天线或电流探头以及测试所用的射频线缆,设置测试类型。 Select the test used in the detection of the measurement test interface and a radio frequency antenna or cable current probe used in the test, the test type is provided. 当线路匹配良好时,频谱测量模块读取的电平值是仪表输入端口所取得的射频电压。 When a good match line, the level value of the spectrum measurement module reads the RF voltage is achieved meter input. 设备将测量天线、电流探头系数及线缆损耗保存至数据库中,在进行检测测试时,根据选择的测试设备,对频谱测试仪获得的数据进行相应的自动修正。 Measuring antenna device, current probe and cable loss coefficient saved to the database, during the test is detected, the device according to the selection test, the tester of the obtained spectrum data corresponding automatic correction. 试验测试开始后,录入被试品等试验测试信息,设置频谱测试仪的工作参数,包括起始终止频率、参考电平、衰减、RBW、扫描时间等,频谱测试仪仪器开始工作,电磁兼容快速测试诊断单元软件采集数据并进行修正显示,结果保存至计算机中生成快速诊断比对数据库。 After the test start of the test, the test input test information test items, etc., provided the operating parameters of the spectrum tester, including start stop frequency, the reference level, attenuation, the RBW, scan time, a spectrum analyzer test equipment to work, fast electromagnetic compatibility test data collection software and the diagnosis unit corrects display, save the results to a computer generated comparison rapid diagnosis database. 通过检测测试,可以获得被试品的辐射发射频谱、电缆源线传导发射频谱、端口天线端子传导发射频谱以及电磁环境电磁频谱信息。 Monitoring test, radiation emission spectrum can be obtained, the test cable source line conduction emission spectrum, the emission spectrum port antenna terminals and the electromagnetic conducting electromagnetic spectrum environment information.

[0009] 本发明利用LabviewS. 5语言编程得到的电磁兼容快速测试诊断单元包括有频谱系数修正模块301、辐射频谱消噪模块302、辐射频谱滤波模块303、辐射分析诊断模块304、环境电磁频谱动态显示模块305、电缆传导分析诊断模块306、端口传导分析诊断模块307 ;频谱系数修正模块301用于对接收到的第一辐射发射频谱FA(a)、第二辐射发射频谱FA(b)、环境电磁频谱FB、电缆传导频谱FC和端口传导频谱FD进行修正处理;辐射频谱消噪模块302、辐射频谱滤波模块303和辐射分析诊断模块304顺次对修正后的第一辐射发射频谱FA (a)、第二辐射发射频谱FA (b)进行处理;环境电磁频谱动态显示模块305用于直观显示修正后的环境电磁频谱FB;电缆传导分析诊断模块306用于对修正后的电缆传导频谱FC进行与标准曲线对比,找出异常频点;端口传导分析诊断模块307用于对修正后的端口传导 [0009] The present invention utilizes LabviewS. EMC 5 programming language to obtain a rapid test diagnostic unit comprises a spectral coefficient correction module 301, the radiation spectrum of the noise canceling module 302, the radiation spectral filtering module 303, Radiation diagnostic module 304, the ambient electromagnetic spectrum dynamic the display module 305, diagnostic module 306 cable conduction analysis, the diagnostic port conduction analysis module 307; spectral coefficient correction module 301 for the first radiation emission spectrum FA (a) received, the second radiation emission spectrum FA (b), the environment electromagnetic spectrum the FB, and FC ports spectrum conductive cable spectrum FD conducting correction processing; radiation spectrum noise cancellation module 302, filtering module 303, and the radiation spectrum of the radiation diagnosis module 304 sequentially analyzing a first radiation emission spectrum of FA (a) after the correction , radiation emission spectrum of a second FA (b) processing; ambient electromagnetic spectrum dynamic display module 305 for displaying visual environment electromagnetic spectrum after correction the FB; cable conduction analysis of diagnostic module 306 for cables conducting corrected spectrum with FC standard curve comparison to an anomalous frequency; diagnostic port conduction analysis module 307 for conducting post-correction port 谱FD —方面进行与标准曲线对比,找出异常频点;另一方面进行与CE106极限值曲线对比,找出超标频点。 Spectrum FD - compared with the standard curve regard to an anomalous frequencies; CE106 other hand, for the comparative limit value curve, to identify excessive frequency.

[0010] 本发明电磁兼容快速测试诊断系统的优点在于: [0010] Electromagnetic compatibility advantages of the present invention rapid diagnostic test system characterized by:

[0011] ①本发明基于Labview8. 5搭建的软件平台,结合硬件设备(如计算机、频谱测试仪),可以在现场获取被试品的辐射发射频谱、电缆传导频谱和端口传导频谱,并与相应的极限值曲线进行比较,简化快速的对被试品的电磁兼容特性进行测试诊断,判断其电磁发射是否超标,而无需将被试品从现场送至专门的微波暗室进行试验,节省了大量的时间和人力。 [0011] ① The present invention is based Labview8. 5 built software platform, combination of hardware devices (such as a computer, the spectrum tester), may acquire the radiation emission spectrum of the test, the cable conductive spectrum and the port pass spectrum in the field, and the corresponding comparing a limit value curve, simplify fast electromagnetic compatibility characteristics are tested diagnostic test, it is determined whether the excessive electromagnetic emissions, without the need to be sent to a dedicated test site test from a microwave darkroom, saving a lot of time and manpower. 同时,电磁兼容快速测试诊断系统的制造和使用成本要比微波暗室低很多。 Meanwhile, EMC rapid test diagnostic systems manufacturing and use cost is much lower than the microwave darkroom.

[0012] ②本发明利用LabviewS. 5语言编程得到的电磁兼容快速测试诊断单元将频谱测试仪与计算机集成在了一起,体积较小、偏于携带运输,并且防震、抗高低温,具有较强的环境适应性。 [0012] ② of the present invention utilizes LabviewS. 5 of EMC test programming language to obtain a rapid diagnostic test spectrum analyzer unit is integrated with a computer, smaller volume, to carry transport biased, and shock, high and low temperature, has a strong environmental adaptability.

[0013] ③本发明测试诊断得到的数据结论存储在计算机中,方便调用查看。 [0013] ③ Conclusion The data obtained is stored in the diagnostic test to the invention in a computer to facilitate the call view. 此外,除了与极限值曲线进行比较外,本发明还可以将被试品的发射频谱曲线与被试品正常工作状态下的发射频谱曲线进行比较分析,判断其电磁发射特性是否发生了异常。 In addition to the curve is compared with the limit value, the present invention also may be emitted to the sample spectrum curves were compared with the emission spectrum curve under normal operating conditions of the test, it is determined whether the electromagnetic emission characteristic abnormality occurs.

[0014] ④本发明系统还能够对电磁环境进行实时检测。 [0014] ④ system of the invention is also capable of real-time detection of the electromagnetic environment.

附图说明 BRIEF DESCRIPTION

[0015] 图I是本发明电磁兼容快速测试诊断系统所需的硬件结构框图。 [0015] Figure I is a quick test the electromagnetic compatibility of the present invention a block diagram showing a hardware configuration required diagnostic system.

[0016] 图2是本发明电磁兼容快速测试诊断单元的功能结构框图。 [0016] FIG. 2 is an electromagnetic compatibility test of the present invention, rapid diagnosis functional block diagram showing units. 、[0017] 图2A是本发明环境电磁频谱动态显示界面。 , [0017] FIG. 2A is a dynamic ambient electromagnetic spectrum display interface according to the present invention.

[0018] 图3A是被试品关机状态下的背景环境频谱图。 [0018] FIG 3A is a spectrum chart in the context of the test off.

[0019] 图3B是被试品工作时包含背景环境的频谱图。 [0019] FIG. 3B is a spectrogram context is included when the test work.

[0020] 图3C是背景滤除后的被试品辐射发射频谱图。 [0020] FIG 3C is a radiation sample after the background emission spectrum of FIG filtered.

[0021] 图4是天线端子传导发射与极限值的分析诊断图。 [0021] FIG. 4 is a conductive antenna terminal analysis and diagnosis of FIG emission limit.

[0022] 图5是辐射发射与历史数据的分析诊断图。 [0022] FIG 5 is a diagnostic analysis of the radiation emission history data.

[0023] 图6是某一时刻某背景环境电磁频谱图。 [0023] FIG. 6 is a background ambient electromagnetic spectrum at a time. 具体实施方式 detailed description

[0024] 下面将结合附图和实施例对本发明做进一步的详细说明。 [0024] The accompanying drawings and the following embodiments of the present invention will be further described in detail.

[0025] 参见图I所示,本发明的一种具有量化电磁干扰的电磁兼容快速测试诊断系统,该系统包括的硬件设备有接收天线11、电流探头12、频谱测试仪20和计算机30 ;所述计算机30内安装有电磁兼容快速测试诊断单元;所述电磁兼容快速测试诊断单元为采用Labview 8. 5语言编程得到。 Electromagnetic compatibility [0025] Referring to FIG I in A of the present invention has a quantized electromagnetic interference rapid diagnostic test system comprising a hardware device with a receiving antenna 11, a current probe 12, a spectrum analyzer 20 and test computer 30; the the computer 30 is mounted within said electromagnetic compatibility rapid test diagnostic unit; electromagnetic compatibility of the rapid test diagnostic means is obtained using Labview 8. 5 programming language. 硬件设备之间的连接关系为:接收天线11通过射频线缆连接到频谱测试仪20上,电流探头12的夹头端夹在被试品的电源线缆上,电流探头12的输出端通过探头线缆连接在频谱测试仪20上,被试品通过端口线缆连接到频谱测试仪20上,频谱测试仪20与计算机30通过数据线相连。 Connections between hardware devices to: receive antenna 11 is connected to the tester 20 through the spectrum RF cable, the cartridge-side current probe 12 is interposed in the power cable test, the output of the current probe 12 through the probe the cable connector on the spectrum tester 20 is connected to the sample spectrum 20 by the tester port cable, spectrum tester 20 connected to the computer 30 through the data line.

[0026] 接收天线11用于在lm、3m或IOm固定距离上接收空间中被试品发射的辐射发射信号VA、以及环境电磁信号VB ; [0026] The receiving antenna 11 for LM, radiation emission signal VA or receiving space 3m IOm fixed distance test are transmitted, and the ambient electromagnetic signal VB;

[0027] 电流探头12用于接收被试品电源线缆的电缆传导信号VC。 [0027] Current sensor 12 for receiving the cable conducting the test signal VC power supply cable.

[0028] 在本发明中,为了实现低干扰、高精度测试的目的,对被试品断电条件下,频谱测试仪20将接收到的辐射发射信号VA转换成第一辐射发射频谱FA (a)输出给计算机30中的电磁兼容快速测试诊断单元;对被试品开机条件下,频谱测试仪20将接收到的辐射发射信号VA转换成第二辐射发射频谱FA (b)输出给计算机30中的电磁兼容快速测试诊断单元。 [0028] In the present invention, in order to achieve low interference, a high-precision test object, is de-energized under the conditions of the test, the tester 20 the spectrum of the received signal VA is converted into radiation emitting a first radiation emitting spectrum FA (a ) to the computer 30 EMC rapid test diagnostic unit; power-on condition is the test, the tester spectrum emitted radiation 20 converts the received signal into a second radiation emission spectrum VA FA (b) is outputted to the computer 30 EMC rapid diagnostic test unit.

[0029] 频谱测试仪20将接收到的环境电磁信号VB转换成环境电磁频谱FB输出给计算机30中的电磁兼容快速测试诊断单元。 [0029] Frequency spectrum analyzer 20 converts the received ambient electromagnetic signal VB converted to the ambient electromagnetic spectrum FB outputted to the computer 30 EMC rapid test diagnostic unit.

[0030] 频谱测试仪20将接收到的电缆传导信号VC转换成电缆传导频谱FC输出给计算机30中的电磁兼容快速测试诊断单元。 [0030] The spectrum analyzer 20 receives the test cable conducting signal VC output spectrum is converted to FC-conducting cable to a computer 30 EMC rapid test diagnostic unit.

[0031] 频谱测试仪20将接收到的端口传导信号VD转换成端口传导频谱FD输出给计算机30中的电磁兼容快速测试诊断单元。 Signal transduction port VD [0031] Frequency spectrum analyzer 20 converts the received spectrum FD output port conduction to the electromagnetic compatibility test computer 30 Rapid diagnostic unit.

[0032] 在本发明中,电流探头12选用AHS公司生产的BCP-514宽带电流探头;该电流探头12的测量频率范围为IOkHz〜100MHz。 [0032] In the present invention, the current probe 12 selected AHS BCP-514 produced by the broadband current probe; measurement frequency range of the current probe 12 is IOkHz~100MHz.

[0033] 在本发明中,接收天线11选用AH Systems公司生产的全向天线。 [0033] In the present invention, the receiving antenna 11 selected AH Systems Company omnidirectional antenna. 所述全向天线中包括有SAS-550-1有源拉杆天线,测量频率范围为IOkHz〜60MHz ;SAS_542双锥天线,测量频率范围为20MHz〜330MHz ;SAS_570双脊喇叭天线,测量频率范围为170MHz〜3GHz ;SAS-571双脊喇叭天线,测量频率范围为700MHz〜18GHz。 The all-in antenna comprising the active SAS-550-1 rod antenna, frequency range is IOkHz~60MHz; SAS_542 biconical antenna, frequency range is 20MHz~330MHz; SAS_570 double-ridged horn antenna, frequency range is 170MHz ~3GHz; SAS-571 double-ridged horn antenna, frequency range is 700MHz~18GHz.

[0034] 在本发明中,频谱测试仪20选用Anritsu公司生产的MS2726c手持式频谱分析仪,测量频率范围为9kHz〜43GHz。 [0034] In the present invention, the tester 20 selected spectrum produced by Anritsu MS2726c handheld spectrum analyzer, the measurement frequency range 9kHz~43GHz.

[0035] 在本发明中,计算机30是一种能够按照事先存储的程序,自动、高速地进行大量数值计算和各种信息处理的现代化智能电子设备。 [0035] In the present invention, computer 30 is stored in advance according to a program capable of automatically, high speed and large numerical modern intelligent electronic devices in various information processing. 最低配置为CPU 2GHz,内存2GB,硬盘IOOGB ;操作系统为windows XP。 The minimum configuration for the CPU 2GHz, memory 2GB, hard drive IOOGB; operating system is windows XP. 计算机30能够运行Labview 8. 5编程软件。 The computer 30 runs software program Labview 8. 5. 为了实现数字化电磁兼容中的电磁发射异常诊断,将被试品正常工作状态下的电磁发射信息保存在计算机的存储器中,所述电磁发射信息形成了快速诊断比对数据库。 To digitize the electromagnetic EMC Emission abnormality diagnosis, the information will be stored in the electromagnetic emission test in the normal operation of the memory of a computer, said electromagnetic emission ratio information form a rapid diagnosis database. 将所述快速诊断比对数据库中的数据绘制成的频谱曲线称为标准曲线。 The rapid diagnosis than the data in the database spectrum plotted curve is called the standard curve.

[0036] 参见图2所示,电磁兼容快速测试诊断单元包括有频谱系数修正模块301、辐射频谱消噪模块302、辐射频谱滤波模块303、辐射分析诊断模块304、环境电磁频谱动态显示模块305、电缆传导分析诊断模块306、端口传导分析诊断模块307 ;频谱系数修正模块301用于对接收到的第一辐射发射频谱FA(a)、第二辐射发射频谱FA(b)、环境电磁频谱FB、电缆传导频谱FC和端口传导频谱FD进行修正处理;辐射频谱消噪模块302、辐射频谱滤波模块303和辐射分析诊断模块304顺次对修正后的第一辐射发射频谱FA (a)、第二辐射发射频谱FA (b)进行处理;环境电磁频谱动态显示模块305用于直观显示修正后的环境电磁频谱FB ;电缆传导分析诊断模块306用于对修正后的电缆传导频谱FC进行与标准曲线对比,找出异常频点;端口传导分析诊断模块307用于对修正后的端口传导频谱FD—方面进行与 [0036] Referring to FIG., The electromagnetic compatibility rapid diagnostic test unit 2 comprises a spectral coefficient correction module 301, the radiation spectrum of the noise canceling module 302, the radiation spectral filtering module 303, the diagnostic radiation analysis module 304, the ambient electromagnetic spectrum dynamic display module 305, analysis of the cable conducting the diagnostic module 306, a diagnostic port conduction analysis module 307; spectral coefficients of the first radiation emission spectrum correction module FA (a) 301 received for the second radiation emission spectrum FA (b), the FB ambient electromagnetic spectrum, conductive cable and FC ports spectrum spectrum FD conducting correction processing; radiation spectrum noise cancellation module 302, filtering module 303, and the radiation spectrum of the radiation diagnosis module 304 sequentially analyzing a first radiation emission spectrum of FA (a) after the correction, the second radiation emission spectrum FA (b) processing; ambient electromagnetic spectrum dynamic display module 305 used to visually display the corrected ambient electromagnetic spectrum the FB; cable conduction analysis of diagnostic module 306 for conducting cables FC corrected spectrum compared with the standard curve, identify abnormal frequency; port for conducting analysis and diagnosis module 307 in terms of the corrected spectrum port pass with FD- 准曲线对比,找出异常频点;另一方面进行与CE106极限值曲线对比,找出超标频点。 Standard curve comparison to an anomalous frequencies; CE106 other hand, compared with the limit value curve, to identify excessive frequency.

[0037] 下面将详细说明每个模块实现的功能: [0037] will be described in detail the function of each module is implemented:

[0038](一)频谱系数修正模块301 [0038] (a) spectral coefficient correction module 301

[0039] 频谱系数修正模块301第一方面采用第一修正关系CFA (a) = FA (a)+Ke (天线)+Lf (射频a纟t)对输入的第一辐射发射频谱FA (a)进行修正,得到第一修正辐射发射频谱CFA (a) ;Ke(^«)表示接收天线11的天线衰减系数表示接收天线11的射频线缆损耗; [0039] The correction module 301 of the first spectral coefficients with a first aspect of the correcting relationships CFA (a) = FA (a) + Ke (antenna) + Lf (a Si RF t) to a first input of the FA radiation emission spectrum (a) is corrected to obtain a first corrected radiation emission spectrum CFA (a); Ke (^ «) represents a receiving antenna 11 of the antenna attenuation coefficient indicates the receiving antenna 11 of the RF cable loss;

[0040] 频谱系数修正模块301第二方面采用第二修正关系CFA (b) =FA(b)+Ke(?^)+Lf(_ 对输入的第二辐射发射频谱FA (b)进行修正,得到第二修正辐射发射频谱CFA (b) ;Ke(^ [0040] The correction module 301 of the second spectral coefficients with a second aspect of the correcting relationships CFA (b) = FA (b) + Ke (? ^) + Lf (_ radiation emission spectrum of the second FA (b) is corrected input, to obtain a second corrected radiation emission spectrum CFA (b); Ke (^

«)表示接收天线11的天线衰减系数表示接收天线11的射频线缆损耗; «) Represents a receiving antenna 11 of the antenna attenuation coefficient indicates the receiving antenna 11 of the RF cable loss;

[0041] 频谱系数修正模块301第三方面采用第三修正关系CFB = FB+Ke(天线)+Lf(射频线缆)对输入的环境电磁频谱FB进行修正,得到修正环境电磁频谱CFB 表示接收天线11的天线衰减系数表示接收天线11的射频线缆损耗; [0041] a third spectral coefficient correction module 301 using a third aspect of the correcting relationships CFB = FB + Ke (antenna) + Lf (RF cable) to the input FB ambient electromagnetic spectrum is corrected to obtain corrected ambient electromagnetic spectrum CFB represents receiving antenna the antenna 11 represents the attenuation coefficient of the receiving antenna 11 of a radio frequency cable loss;

[0042] 频谱系数修正模块301第四方面采用第四修正关系CFC = FC+Ke(探头)+Lf(sa_)对输入的电缆传导频谱FC进行修正,得到修正电缆传导频谱CFC 表示电流探头12的裳减系数;Lf(g_)表不电流探头12的探头线缆损耗; [0042] a fourth spectral coefficient correction module 301 using a fourth aspect of the correcting relationships CFC = FC + Ke (probe) + Lf (sa_) conducting cable FC spectrum inputted correction, corrected spectrum CFC represents a current conducting cable probe 12 Save Sang coefficient; Lf (g_) table probe current probe without loss of the cable 12;

[0043] 频谱系数修正模块301第五方面采用第五修正关系CFD = 对输入的端口传导频谱FD进行修正,得到修正端口传导频谱CFD -,Lnmmm表示被试品与频谱测试仪20之间连接的端口线缆损耗。 [0043] The spectral coefficient correction module 301 using a fifth aspect of the correcting relationships fifth conductive input port CFD = FD corrected spectrum, the spectrum is corrected conductivity port CFD -, Lnmmm 20 denotes a connection between the tester sample and the spectrum of port cable loss.

[0044] (二)辐射频谱消噪模块302 [0044] (b) the radiation spectrum of the noise canceling module 302

[0045] 辐射频谱消噪模块302 —方面采用消噪算法对频谱系数修正模块301输出的第一修正辐射发射频谱CFA (a)进行消噪处理,获得第一消噪辐射发射频谱FA2 (a)输出; [0045] The radiation spectrum of the noise canceling module 302-- aspect Denoising Algorithm uses spectral coefficients output from the correction module 301 first correction radiation emission spectrum CFA (a) denoising process performed to obtain a first noise canceling radiation emission spectrum FA2 (a) output;

[0046] 辐射频谱消噪模块302另一方面采用消噪算法对频谱系数修正模块301输出的第二修正辐射发射频谱CFA (b)进行消噪处理,获得第二消噪辐射发射频谱FA2(b)输出。 [0046] The radiation spectrum of the noise canceling module 302 uses the other hand Denoising Algorithm spectral coefficient correction module 301 outputs a second correction radiation emission spectrum CFA (b) perform the noise canceling process to obtain a second noise canceling radiation emission spectrum FA2 (b ) output.

[0047] 在本发明中,消噪算法是对第一修正辐射发射频谱CFA(a)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号,将其他频点默认为噪底,统计噪底的最大幅值。 [0047] In the present invention, the denoising algorithm is first correction radiation emission spectrum CFA (a) for traversing the maximum value, the minimum value before and after the amplitude is greater than 5dB or more default frequency electromagnetic signal, the frequency of the other the default is the end point of the noise, the statistical noise floor of maximum amplitude. 若噪底的最大幅值小于24dB u V/m,无需进行消噪处理,辐射发射频谱CFA (a)即为FA2(A)输出;若噪底的最大幅值大于等于24(^11¥/111,先将0?4(&)中筛选出来的电磁信号进行放大处理,信号幅值均增加20dB,然后将整个频谱所有频点的幅值均减小20dB,即可得到消噪后的辐射发射频谱FA2 (A)输出。 If the maximum amplitude of the noise floor is less than 24dB u V / m, without denoising, radiation emission spectrum CFA (a) is the FA2 (A) output; If the noise floor is greater than the maximum amplitude is equal to 24 (^ 11 ¥ / 111, first 0? (&) screened out enlargement processing an electromagnetic signal 4, were increased 20dB signal amplitude, then the amplitude of the entire frequency spectrum for all frequencies are reduced 20dB, the radiation can be obtained after denoising emission spectrum FA2 (A) output.

[0048] 在本发明中,消噪算法是对第二修正辐射发射频谱CFA(b)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号,将其他频点默认为噪底,统计噪底的最大幅值。 [0048] In the present invention, the second noise canceling algorithm is corrected radiation emission spectrum CFA (b) for maximum traverse, the longitudinal amplitude is greater than the minimum value of 5dB or more default frequency electromagnetic signal, the frequency of the other the default is the end point of the noise, the statistical noise floor of maximum amplitude. 若噪底的最大幅值小于24dBii V/m,无需进行消噪处理,辐射发射频谱CFA(b)即为FA2(b)输出;若噪底的最大幅值大于等于24dBii V/m,先将CFA(b)中筛选出来的电磁信号进行放大处理,信号幅值均增加20dB,然后将整个频谱所有频点的幅值均减小20dB,即可得到消噪后的辐射发射频谱FA2(b)输出。 If less than the maximum amplitude of the noise floor 24dBii V / m, without denoising, radiation emission spectrum CFA (b) is the FA2 (b) an output; if the maximum amplitude of the noise floor is greater than or equal 24dBii V / m, first CFA (b) screening out enlargement processing electromagnetic signals, the signal amplitude was increased 20dB, then the amplitude of the entire frequency spectrum for all frequencies are 20dB reduced, to obtain a spectrum of the radiation emitted FA2 (b) after denoising output.

[0049](三)辐射频谱滤波模块303 [0049] (iii) radiation spectral filtering module 303

[0050] 辐射频谱滤波模块303第一方面对辐射频谱消噪模块模块302输出的第一消噪辐射发射频谱FA2(a)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号FA2 (a) SA ; [0050] The filter module 303 a first radiation spectrum in terms of a first radiation emitting spectrum of the noise canceling FA2 (a) the radiation spectrum of the noise canceling module output module 302 is traversed maximum value, the amplitude is greater than the minimum value before and after a frequency above 5dB The default point electromagnetic signal FA2 (a) SA;

[0051 ] 辐射频谱滤波模块303第二方面对辐射频谱消噪模块模块302输出的第二消噪辐射发射频谱FA2(b)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号FA2 (b)SA; [0051] The second aspect of the 303 second radiation spectrum of the noise canceling filter module radiation spectrum noise cancellation module 302 outputs block radiation emission spectrum of FA2 (b) for maximum traversal, the amplitude is greater than the minimum value before and after a frequency above 5dB The default point electromagnetic signal FA2 (b) SA;

[0052] 辐射频谱滤波模块303第三方面对FA2 (a) SA与FA2 (b) SA进行同频点信号比对,若存在同频点信号,则将FA2 (b)中的该频点幅值基于前后极小值进行线性插值处理,获得滤波辐射发射频谱FA3输出; [0052] The radiation module 303 to third spectral filtering face FA2 (a) SA performed with the frequency of the signal ratio FA2 (b) SA, the same frequency signal if present, the frequency will web FA2 (b) of linear interpolation process based on the value of the minimum value before and after the radiation emission spectrum obtained filter FA3 output;

[0053] 辐射频谱滤波模块303第四方面对FA2 (a) SA与FA2 (b) SA进行同频点信号比对,若不存在同频点信号,则将FA2 (b)作为滤波辐射发射频谱FA3输出。 [0053] Radiation spectral filtering module 303 to a fourth aspect of the FA2 (a) SA performed with the frequency of the signal ratio FA2 (b) SA, if the presence of the same frequency point signal, the FA2 (b) filtering radiation emitted as FA3 output spectrum.

[0054](四)辐射分析诊断模块304 [0054] (d) Radiation diagnostic module 304

[0055] 辐射分析诊断模块304对辐射频谱滤波模块303输出的滤波辐射发射频谱FA3进行辐射分析诊断,判断被试品的辐射发射特性是否合格或者是否异常,具体步骤为: [0055] Analysis of the filtered radiation diagnostic radiation spectral filtering module 304 module 303 outputs FA3 radiation emission spectrum analysis and diagnosis, it is determined whether or not the radiation emitting characteristics or qualifying test is abnormal, the specific steps:

[0056] 第304-1步:根据GJB151A — 1997《军用设备设备和分系统电磁发射和敏感度要求》和GJB152A - 1997《军用设备设备和分系统电磁发射和敏感度测量》中RE102测试项目要求和方法,得到RE102极限值曲线; [0056] The first Step 304-1: The GJB151A - 1997 "military equipment devices and subsystems electromagnetic emissions and susceptibility requirements" and GJB152A - 1997 "military equipment devices and subsystems electromagnetic emission and susceptibility measurements" in the test project requirements RE102 and methods to give RE102 limit value curve;

[0057] 第304-2步:将辐射频谱滤波模块303输出的滤波辐射发射频谱FA3与RE102极限值曲线进行比对,提取出被试品的辐射发射超标频点。 [0057] Step 304-2 of: filtering the output radiation spectrum filtering module 303 and a radiation emission spectrum FA3 RE102 limit value curve for comparison, extracts a frequency exceeding radiation emission test sample. FA3中幅值大于RE102极限值曲线的频点即为超标频点; Greater in magnitude than the frequency FA3 RE102 exceeded the limit value curve is the frequency;

[0058] 第304-3步:根据是否存在超标频点判断被试品的辐射发射特性是否合格,若存在超标频点,则被试品的辐射发射特性不满足GJB151A — 1997《军用设备设备和分系统电磁发射和敏感度要求》中的相关规定,即为不合格;反之,则为合格; [0058] The first step 304-3: according to whether there is excessive frequency determining whether radiation-emitting characteristics of the test sample passing frequency exceeded if present, were radiation-emitting characteristics of the test is not satisfied GJB151A - 1997 "military equipment and devices subsystems electromagnetic emission and susceptibility requirements "in the relevant regulations, is substandard; on the contrary, it is passed;

[0059] 第304-4步:将辐射频谱滤波模块303输出的滤波辐射发射频谱FA3与快速诊断比对数据库中的信息形成的标准曲线进行比对,提取出被试品的辐射发射异常频点;FA3中幅值与标准曲线相差2dB以上的频点即为异常频点; [0059] Step 304-4 of: filtering the output radiation spectrum filtering module 303 and a radiation emission spectrum FA3 rapid diagnosis than standard curve for comparison of the information in the database is formed, extract the emitted radiation frequency abnormality test ; the FA3 in 2dB amplitude difference than a standard curve of frequency is the abnormal frequency;

[0060] 第304-5步:根据是否存在异常频点判断被试品的辐射发射特性是否异常,若存在异常频点,即为异常;反之,则为正常。 [0060] The first step 304-5: The presence or absence of abnormality is determined frequency radiation emission characteristic test is abnormal, when the frequency abnormality is present, is the abnormal; the other hand, was normal. 当被试品的辐射发射特性发生异常时,根据差异幅度判定异常程度,若FA3中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若FA3中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;gFA3中异常频点幅值与标准曲线相差SdB以上,则为重度异常。 When an exception occurs the radiation emitted is characteristic of the test sample, the degree of abnormality is determined according to the magnitude of the difference, if the abnormal frequency FA3 amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; FA3 if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; gFA3 abnormal frequency amplitude difference of more than a standard curve SdB, the severe abnormalities.

[0061 ](五)环境电磁频谱动态显示模块305 [0061] (v) the ambient electromagnetic spectrum dynamic display module 305

[0062] 环境电磁频谱动态显示模块305通过如图2A所示的界面,进行频谱图形的显示、EMI测试、分析诊断条件设置、电磁环境检测条件设置。 [0062] ambient electromagnetic spectrum dynamic display module 305 via the interface shown in FIG. 2A, the spectrum display graphics, EMI testing, analysis and diagnosis condition setting, the detection condition setting electromagnetic environment.

[0063] 频谱图形的显示主要是针修正环境电磁频谱CFB进行显示,并依据EMI测试、分析诊断条件设置、电磁环境检测条件设置的不同而不断刷新、实时地在计算机的显示屏上进行测试结果显示。 [0063] spectrum graphical display is mainly needle correction CFB environment of the electromagnetic spectrum display and set the basis for EMI testing, analysis and diagnosis conditions, different electromagnetic environmental testing conditions set constantly refreshed in real-time test results on the computer screen display. [0064] EMI (Electro-Magnetic Interference,电磁干扰)测试:包括有被试品的选择、测试模式选择、测试参数设置;所述测试模式选择分三类进行,即辐射测试(即测FA (a),FA (b),FB, FC, FD)、电源线传导测试(即测FC)和天线端子传导测试(即测FD);所述测试参数设置包括对起始频率、终止频率、衰减三种参数的设置;对于满足军标需求的标准测试仅通过设置被试品选择,不对测试模式选择和测试参数设置进行选取。 [0064] EMI (Electro-Magnetic Interference, electromagnetic interference) Test: There is provided comprising a test selected, the test mode select, test parameters; the test mode select three types, namely irradiation test (i.e. measurement FA (a ), FA (b), FB, FC, FD), the power supply line conducting the test (i.e., test FC) and the antenna terminal conducting the test (i.e. measured the FD); the test parameters including a start frequency, stop frequency, three attenuation the types of parameters set; meet the criteria for military standard test sample needs to be selected only by setting a test mode select not to set test parameters and to select.

[0065] 分析诊断条件设置:包括有测试曲线选择和诊断模式选择;所述测试曲线选择指的是生成频谱图所要用的线条;所述诊断模式选择目前只针对是否符合军标的分析和与军标不同的干扰异常分析。 [0065] Analysis diagnosis condition is provided: including diagnostic and test curve selection mode selection; the selection means a test curve generated by use of the line spectrum; the diagnostic mode currently selected target for analysis and meets military and military abnormal analyze different standard interference.

[0066] 电磁环境检测条件设置是通过测试参数设置来实现的。 [0066] Electromagnetic environmental conditions provided by the test detection parameters to achieve. 包括有起始频率、终止频率、衰减、RBW (分析带宽)、VBW (显示带宽)参数的设置。 Including a start frequency, stop frequency, attenuation, the RBW (analysis bandwidth), the VBW (display bandwidth) parameter settings.

[0067] RBW代表两个不同频率的信号能够被清楚的分辨出来的最低频宽差异,两个不同频率的信号频宽如低于频谱分析仪的RBW,此时该两信号将重叠,难以分辨,较低的RBW固然有助于不同频率信号的分辨与量测,低的RBW将滤除较高频率的信号成份,导致信号显示时产生失真,失真值与设定的RBW密切相关,较高的RBW固然有助于宽频带信号的侦测,将增加杂讯底层值(Noise Floor),降低量测灵敏度,对于侦测低强度的信号易产生阻碍,因此适当的RBW宽度是正确使用频谱分析仪的重要点。 [0067] RBW is the lowest bandwidth differences between the two signals of different frequencies can be distinguished clearly out, a signal bandwidth of less than two different frequencies as a spectrum analyzer RBW, when the two signals overlap, they are difficult to distinguish , of course, help to distinguish between low RBW and measurement signals of different frequencies, a low RBW the higher frequency component filtered signal, resulting in distortion of the signal displayed, the distortion is closely related with the set value RBW, higher RBW of course helps detecting broadband signal, will increase the value of the underlying noise (noise Floor), reducing the measurement sensitivity, for detecting a low signal strength impede easy to produce, and therefore suitable to use the correct width RBW spectrum analysis important point instrument. VBW,视频带宽,表示测试的精度,越小精度越高,如将VBW设为lOOKHz,表示每隔IOOKHz取一个样测试其电平,因此可以看到VBff设置越小其测试曲线越光滑。 VBW, video bandwidth, resolution is expressed in the test, the smaller the higher the accuracy, as will be set VBW lOOkHz, represents a sample taken every IOOKHz level tested, it can be seen that the more smooth VBff set smaller test curve.

[0068](六)电缆传导分析诊断模块306 [0068] (f) conducting analysis and diagnosis module 306 cable

[0069] 电缆传导分析诊断模块306对频谱系数修正模块301输出的修正电缆传导频谱CFC进行电缆传导分析诊断,判断被试品的电缆传导特性是否异常,具体步骤为: [0069] The diagnostic module 306 cable conduction analysis spectral coefficients correction module 301 outputs the correction cable conducting CFC spectrum analysis and diagnosis for conducting cable, the cable is determined to be the conduction characteristic test is abnormal, the specific steps:

[0070] 第306-1步:将频谱系数修正模块301输出的修正电缆传导频谱CFC与快速诊断比对数据库中的信息形成的标准曲线进行比对,提取出被试品的电缆传导异常频点。 [0070] Step 306-1: conducting cable spectral correction module 301 outputs the coefficient correction spectrum and rapid diagnosis CFC than standard curve for comparison of the information in the database is formed, extract the cable conducting the test frequency abnormality . CFC中幅值与标准曲线相差2dB以上的频点即为异常频点; CFC in magnitude than a standard curve 2dB difference frequency is the abnormal frequency;

[0071] 第306-2步:根据是否存在异常频点判断被试品的电缆传导特性是否异常,若存在异常频点,即为异常;反之,则为正常。 [0071] The first step 306-2: The presence or absence of abnormality is determined frequency characteristic is the cable conducting the test is abnormal, when the frequency abnormality is present, is the abnormal; the other hand, was normal. 当被试品的电缆传导特性发生异常时,根据差异幅度判定异常程度,若CFC中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若CFC中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;若CFC中异常频点幅值与标准曲线相差SdB以上,则为重度异常。 When the cable is abnormal conduction characteristics of the sample occurs, according to the magnitude of the difference determines the degree of abnormality, when the abnormality CFC frequency amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; CFC if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; CFC abnormal if the magnitude of the frequency difference of more than a standard curve SdB, the severe abnormalities.

[0072](七)端口传导分析诊断模块307[0073] 端口传导分析诊断模块307对频谱系数修正模块301输出的修正端口传导频谱CFD进行端口传导分析诊断,判断被试品的端口传导特性是否合格或者是否异常,具体步骤为: [0072] (vii) ports conduction analysis of the diagnostic module 307 [0073] Port conduction analysis of diagnostic module spectral coefficient correction module 301 outputs 307 the correction of the port pass spectral CFD port conduction analysis and diagnosis, port pass characteristic determining test product is qualified or if abnormal, the specific steps:

[0074] 第307-1步:根据GJB151A — 1997《军用设备设备和分系统电磁发射和敏感度要求》和GJB152A - 1997《军用设备设备和分系统电磁发射和敏感度测量》中CE106测试项目要求和方法,得到CE106极限值曲线; [0074] The first Step 307-1: The GJB151A - 1997 "military equipment devices and subsystems electromagnetic emissions and susceptibility requirements" and GJB152A - 1997 "military equipment devices and subsystems electromagnetic emission and susceptibility measurements" in the test project requirements CE106 and methods to give CE106 limit value curve;

[0075] 第307-2步:将频谱系数修正模块301输出的修正端口传导频谱CFD与CE106极限值曲线进行比对,提取出被试品的端口传导超标频点;CFD中幅值大于CE106极限值曲线的频点即为超标频点; [0075] The first step 307-2: conductivity correction port 301 outputs spectral coefficients of the spectral correction module and CE106 CFD limit value curve for comparison, the extracted sample port is exceeded conducting frequency; CFD is greater than the amplitude limit CE106 frequency value of the frequency curve to be contaminated;

[0076] 第307-3步:根据是否存在超标频点判断被试品的端口传导特性是否合格,若存在超标频点,则被试品的端口传导特性不满足GJB151A - 1997《军用设备设备和分系统电磁发射和敏感度要求》中的相关规定,即为不合格;反之,则为合格; [0077] 第307-4步:将频谱系数修正模块301输出的修正端口传导频谱CFD与快速诊断比对数据库中的信息形成的标准曲线进行比对,提取出被试品的端口传导异常频点。 [0076] The first step 307-3: according to whether there is excessive frequency determining whether the test port transfer characteristics of passing frequency exceeded if present, the test port conduction characteristics were not satisfied GJB151A - 1997 "military equipment and devices subsystems electromagnetic emission and susceptibility requirements "in the relevant regulations, is substandard; on the contrary, it is passed; [0077] step 307-4 of: conductivity correction port 301 outputs spectral coefficients of the spectral correction module and rapid diagnosis CFD than standard curve for comparison of the information in the database is formed, conducting the extracted sample port abnormal frequency. CFD中幅值与标准曲线相差2dB以上的频点即为异常频点; CFD in magnitude than a standard curve 2dB difference frequency is the abnormal frequency;

[0078] 第307-5步:根据是否存在异常频点判断被试品的端口传导特性是否异常,若存在异常频点,即为异常;反之,则为正常。 [0078] The first step 307-5: The determination whether or not there is an abnormality frequency transfer characteristics of the test port is abnormal, when the frequency abnormality is present, is the abnormal; the other hand, was normal. 当被试品的端口传导特性发生异常时,根据差异幅度判定异常程度,若CFD中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若CFD中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;若CFD中异常频点幅值与标准曲线相差SdB以上,则为重度异常。 When the characteristics are abnormal conduction test port occurs, the magnitude of the difference is determined according to the degree of abnormality, when the abnormality CFD frequency amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; CFD if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; CFD abnormal if the magnitude of the frequency difference of more than a standard curve SdB, the severe abnormalities.

[0079] 在本发明中,计算机30是系统的控制核心和软件操作运行的载体与平台。 [0079] In the present invention, the computer system 30 is a control vector and core software platform running operation. 操作人员可以通过计算机交互界面(如图2A所示)提出检测任务,设置检测参数,获取测试结果并进行分析诊断。 The operator can make detection task by a computer interface (FIG. 2A), the parameter set is detected, obtain test results and analysis and diagnosis. 计算机30通过USB传输线和频谱测试仪20之间传递控制信号与数据信息,实现对频谱测试仪20的控制,同时从频谱测试仪20获取频谱数据以供进一步分析。 The computer 30 is transmitted between the cable 20 and the USB transmission spectrum by a control signal with the tester data to achieve control of the tester 20 of the spectrum, while the spectral data from the spectrum acquisition tester 20 for further analysis. 测试数据存储在计算机30,方便调用。 Test data stored in the computer 30, easy call.

[0080] 本系统将频谱测试仪20与计算机30集成在了一起,体积小、携带方便,并且具有较强的环境适应性。 [0080] The system spectrum tester 20 and the computer 30 is integrated with, small, portable, and has strong environmental adaptability.

[0081] 电磁兼容快速测试诊断单元采用虚拟仪器开发平台Labview 8. 5进行编写。 [0081] Electromagnetic Compatibility rapid diagnostic test unit uses the virtual instrument development platform Labview 8. 5 be written. 对系统的硬件进行控制和数据采集,对收集的数据使用特定的算法进行判读和计算处理,得到符合要求的电磁频谱;将被试品的电磁频谱与相应的极限值曲线或快速诊断比对数据库中的信息生成的标准曲线进行比对,判定被试品当前的电磁兼容特性;此外,电磁兼容快速测试诊断单元还可以对测试数据进行有效的管理。 Control system hardware and the data acquisition, the data collected using a specific algorithm interpretation and calculation processing, to meet the requirements to obtain the electromagnetic spectrum; test product will be of the electromagnetic spectrum corresponding to the limit value curve matching or rapid diagnostic database the information generated a standard curve for comparison, the test current is determined by the characteristics of the electromagnetic compatibility; in addition, EMC rapid diagnostic test unit may test for effective management of data.

[0082] 在本发明中,计算机30主要采用USB传输线与频谱测试仪20进行控制命令的传递和外部数据的采集。 [0082] In the present invention, the main computer 30 using a USB cable 20 and the tester spectrum acquisition and control command transfer external data. 在程序启动后,电磁兼容快速测试诊断单元先向频谱测试仪20发出一个自检指令,收到自检指令后频谱测试仪20返回特定的代码。 After the program starts, EMC rapid diagnostic test spectrum units in your tester 20 issues a self-test command, the tester 20 returns the spectrum to a specific self-test instruction code is received. 如果电磁兼容快速测试诊断单元未接收到这个代码,则表明连接不正常,电磁兼容快速测试诊断单元报错,需要进行人工干预。 If EMC rapid test diagnostic unit does not receive the codes, then the connection is not normal, rapid test diagnostic means electromagnetic compatibility error, manual intervention is required. 如果电磁兼容快速测试诊断单元接收到回应的代码,则表明频谱测试仪20工作正常,继续进行试验。 If EMC rapid diagnostic test unit received a response codes, it indicates that the spectrum tester 20 is working properly, test continued. 根据试验要求将特定的参数写入频谱测试仪20,频谱测试仪20处理后反馈数据信息,判断是否需要继续控制频谱测试仪20,如果需要则继续向频谱测试仪20写入控制参数,按上述步骤继续试验,如果不需要,则中止试验。 The test requires specific parametric spectral writing tester 20, the tester 20 processes the spectrum data feedback information, determines whether to continue to control the spectrum tester 20, if necessary to continue the writing control parameters to spectrum tester 20, as described above step test is continued, if not, then the test was stopped.

[0083] 在本发明中,通过计算机交互界面(如图2A所示)控制测试的进行,获取频谱信息。 [0083] In the present invention, (FIG. 2A) by a computer controlled test interface, acquire spectral information. 在测试界面下选择测试所用的测量天线或电流探头以及测试所用的射频线缆,设置测试类型。 Select the test used in the measurement test interface and a radio frequency antenna or cable current probe used in the test, the test type is provided. 在进行测试时,根据选择的测试设备,对频谱测试仪20获得的数据进行相应的自动修正。 During the test, the test apparatus according to the selection, the spectrum data obtained in the tester 20 corresponding automatic correction. 测试开始后,录入被试品等测试信息,设置频谱测试仪20工作参数,包括起始终止频率、参考电平、衰减、RBW、扫描时间等,频谱测试仪20开始工作,电磁兼容快速测试诊断单元采集数据并进行修正显示,结果保存至计算机30中。 After the start of the test, the test is like entering test information, provided a spectrum tester 20 operating parameters, including the initial stop frequency, the reference level, attenuation, the RBW, scan time, a spectrum analyzer 20 starts the test work, EMC rapid diagnostic test data collection means and displays the correction result is stored to the computer 30. 通过测试,可以获得被试品的辐射发射频谱、电缆传导频谱、端口传导频谱以及环境电磁频谱信息。 Tested can be obtained by radiation emission spectrum of the test sample, the conductive cable spectrum, and the spectrum of ambient electromagnetic conducting port spectral information.

[0084] 在进行辐射发射测试时,噪底可能比较高。 [0084] During radiation emission test, the noise floor may be relatively high. 对获取的被试品辐射发射频谱进行消噪处理,从噪底中分离出的辐射发射信号。 The radiation emitted by the test of the acquired spectrum denoising process, separated from the radiation emission signal noise floor.

[0085] 在进行辐射发射测试时,环境中可能存在一定的干扰信号,对获取的被试品的辐射发射频谱进行滤波处理,将被试品的辐射发射信号从环境信号中提取出来。 [0085] During the test radiation emission, environment there may be some interference signal, the radiation emission spectrum of the sample obtained by filtering process, the signal will be emitted radiation from the sample is extracted signal environment.

[0086] 电磁兼容快速测试诊断单元将获得的被试品的发射频谱与相应的极限值曲线或·快速诊断比对数据库中的信息生成的标准曲线进行比对分析,对被试品的电磁兼容特性进行诊断。 [0086] Electromagnetic compatibility rapid diagnostic test unit corresponding to the emission spectrum of the limit value curve obtained is flash-test or diagnosis than analysis and comparison of the standard curve generated information in the database, the electromagnetic compatibility test of characteristics of diagnosis. 在分析诊断界面下首先选择需要进行比对分析的试验数据,并选择诊断方案。 In the first analysis and diagnosis interface select test data comparison analysis, diagnostic programs and selecting. 当选择与相应的极限值曲线进行比较时,统计发射频谱中幅值大于极限值的频点,判断被试品的电磁兼容特性是否超标。 When selecting a corresponding limit value curve by comparing the emission spectrum whose amplitude is greater than the statistical frequency limit, EMC is determined whether the sample characteristic is exceeded. 当选择与快速诊断比对数据库中的信息生成的标准曲线进行比较时,统计两组数据中变化量超过设定值的频点,判断被试品的电磁兼容特性是否发生异常。 When selecting the ratio of the standard curve rapid diagnosis information generated in the database by comparing two sets of data in the statistical frequency variation amount exceeds a set value, the electromagnetic compatibility characteristics are determined in the test sample is abnormal.

[0087] 实施例I [0087] Example I

[0088] 将硬件设备接收天线11、电流探头12、频谱测试仪20和计算机30连接好。 [0088] The hardware device receiving antenna 11, a current probe 12, a spectrum analyzer 20 and test computer 30 connected.

[0089] 使用接收天线11可以获得被试品的辐射发射频谱。 [0089] The receiving antenna 11 may be obtained using the radiation emission spectrum of the test sample. 在使用中,系统根据设置自动进行两次测试。 In use, the system automatically according to the settings of two tests. 第一次,获得被试品断电条件下的辐射发射频谱。 First, the radiation emission spectrum is obtained under the conditions of the test product is de-energized. 如图3A所示,为被试品断电条件下的辐射发射频谱。 3A, the emission spectrum of the irradiated sample in the power off condition. 从图中可以看出,在23MHz左右有一个较大的环境信号。 As can be seen from the figure, there is a large signal environment around 23MHz. 第二次,获得被试品开机条件下的辐射发射频谱。 Second, the radiation emission spectrum is obtained under the test conditions boot. 如图3B所示,为某信号发生器在开机条件下的辐射发射频谱。 3B, the signal generator for a radiation emission spectrum with the power on condition. 从图中可以看出,频谱既包括信号发生器的工作发射信号,也包括环境信号。 As can be seen from the figure, both the working spectrum transmission signal comprises a signal generator, also comprises an ambient signal. 系统通过滤波算法,自动生成被试品滤波后的辐射发射频谱。 By filtering algorithm system, automatically generating a radiation emission spectrum of the filtered sample. 如图3C所示,为滤波后的被试品辐射发射频谱。 3C, the test product is filtered radiation emission spectrum. 从图中可以看出,环境信号被滤除。 As can be seen from the figure, the ambient signal is filtered. 使用电流探头12,可以获得被试品的电缆传导频谱。 Using a current probe 12 can be obtained by conducting the test of the cable spectrum. 通过直连方式,可以获得被试品的端口传导频谱。 By direct connection, a port can be obtained by conducting the test spectrum.

[0090] 得到被试品的发射频谱后,进而可以与相应的极限值曲线或快速诊断比对数据库中的信息生成的标准曲线进行比较分析,对其电磁兼容特性进行诊断。 [0090] After obtaining the emission spectrum of the sample, it can be compared using the standard curve analysis and comparison of information in the database generated by the respective limit value curve or rapid diagnosis, diagnosis of their electromagnetic compatibility characteristics. 如图4所示,对获得的某一民用电台的端口传导频谱与相应的极限值曲线(这里选取GJB151A-97中的CE106曲线作为极限值曲线)进行比较,诊断发现,其传导发射未超出极限值标准,电磁发射特性合格。 As shown, a port for conducting civilian radio spectrum obtained with a corresponding limit value curve 4 (here select CE106 curve GJB151A-97 as the limit value curve) compared diagnosis found that conduction emission limit is not exceeded value standard, the electromagnetic emission characteristics qualified. 如图5所示,对获得的某一民用电台的辐射发射频谱与快速诊断比对数据库中的信息生成的标准曲线进行比较,诊断发现,其谐波强度变大,电磁发射特性发生了异常。 5, a radiation emission spectrum obtained in the civil station rapid diagnosis than a standard curve generated information in the database is compared, we found diagnosis, harmonic strength becomes large, the electromagnetic emission characteristic abnormality occurs.

[0091] 使用接收天线11,可以对电磁环境进行实时的检测,如图6所示,为某一时刻某背景下的环境电磁频谱。 [0091] A reception antenna 11, electromagnetic environment can be detected in real time, as shown in FIG. 6, for a time of the electromagnetic spectrum at a certain background environments.

Claims (7)

  1. 1. 一种具有量化电磁干扰的电磁兼容快速测试诊断系统,该系统包括的硬件设备有接收天线(11)、电流探头(12)、频谱测试仪(20)和计算机(30);其特征在于:所述计算机(30)内采用Labview语言编程得到了电磁兼容快速测试诊断单元;所述电磁兼容快速测试诊断单元包括有频谱系数修正模块(301)、辐射频谱消噪模块(302)、辐射频谱滤波模块(303)、辐射分析诊断模块(304)、环境电磁频谱动态显示模块(305)、电缆传导分析诊断模块(306)、端口传导分析诊断模块(307); 频谱系数修正模块(301)第一方面采用第一修正关系CFA(a) = FA(a)+Ke(_)+Lf(M频线纟t)对输入的第一辐射发射频谱FA(a)进行修正,得到第一修正辐射发射频谱CFA(a) ;Ke(^«)表示接收天线(11)的天线衰减系数;Lf(Iffisaga)表示接收天线(11)的射频线缆损耗;频谱系数修正模块(301)第二方面采用第二修正关 An EMC quantized electromagnetic interference having a rapid diagnostic test system comprising a hardware device with a receiving antenna (11), current probe (12), the spectrum tester (20) and a computer (30); characterized in that : said computer (30) using the Labview programming language to obtain a rapid test diagnostic means EMC; electromagnetic compatibility of the rapid test diagnostic unit comprises a spectral coefficient correction module (301), the radiation spectrum of the noise canceling module (302), the radiation spectrum filtering module (303), radiation diagnostic module (304), the environment electromagnetic spectrum dynamic display module (305), the cable conducting analysis and diagnosis module (306), the port conduction analysis and diagnosis module (307); spectral coefficient correction module (301) of relationship with a first aspect of the correction CFA (a) = FA (a) + Ke (_) + Lf (M pilot line Si t) of the first radiation emission spectrum FA (a) is corrected input to obtain a first corrected radiation emission spectrum CFA (a); Ke (^ «) represents a receiving antenna (11) of the antenna attenuation coefficient; Lf (Iffisaga) represented by the receiving antenna (11) a radio frequency cable loss; spectral coefficient correction module (301) using a second aspect of the The second correction off CFA(b) = FA(b)+Ke(_)+Lf(M频线纟_®)对输入的第二辐射发射频谱FA (b)进行修正,得到第二修正辐射发射频谱CFA (b); 频谱系数修正模块(301)第三方面采用第三修正关系CFB = FB+Ke(„a)+Lf mmm)对输入的环境电磁频谱FB进行修正,得到修正环境电磁频谱CFB ; 频谱系数修正模块(301)第四方面采用第四修正关系CFC = FC+Ke(_)+Lf(s?MPt)对输入的电缆传导频谱FC进行修正,得到修正电缆传导频谱CFC ; 频谱系数修正模块(301)第五方面采用第五修正关系CFD = FD+Lf(^pa,t)对输入的端口传导频谱FD进行修正,得到修正端口传导频谱CFD -,Lnmmm表示被试品与频谱测试仪(20)之间连接的端口线缆损耗; 辐射频谱消噪模块(302) —方面采用消噪算法对所述的第一修正辐射发射频谱CFA (a)进行消噪处理,获得第一消噪辐射发射频谱FA2 (a)输出; 辐射频谱消噪模块(302)另一方面采用消噪算法对所述的 CFA (b) = FA (b) + Ke (_) + Lf (M pilot line Si _®) of radiation emitting a second spectrum of FA (b) inputted correction to obtain corrected radiation emitting a second spectrum of CFA (b) ; spectral coefficient correction module (301) using a third aspect of the third correction relationship CFB = FB + Ke ( "a) + Lf mmm) environmental FB input electromagnetic spectrum is corrected, the CFB corrected ambient electromagnetic spectrum; spectral coefficient correction module (301) using a fourth aspect of the fourth correction relationship CFC = FC + Ke (_) + Lf (s MPt?) conducting cable FC input spectrum is corrected to obtain corrected spectral cable conducting the CFC; spectral coefficient correction module (301) According to the fifth aspect of the fifth correcting relationships CFD = FD + Lf (^ pa, t) of the input port pass FD corrected spectrum, the spectrum is corrected conductivity port CFD -, Lnmmm denotes the test spectrum tester (20) of loss between the port cable connector; radiation spectrum noise cancellation module (302) - Denoising algorithm aspect using the radiation emission spectrum of the first correction CFA (a) denoising process performed to obtain a first spectrum of radiation emitted noise canceling FA2 (a) an output; radiation spectrum noise cancellation module (302) on the other hand in the denoising algorithm 二修正辐射发射频谱CFA (b)进行消噪处理,获得第二消噪辐射发射频谱FA2(b)输出; 辐射频谱滤波模块(303)第一方面对所述的第一消噪辐射发射频谱FA2 (a)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号FA2(a)SA ; 辐射频谱滤波模块(303)第二方面对所述的第二消噪辐射发射频谱FA2(b)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号FA2(b)SA ; 辐射频谱滤波模块(303)第三方面对FA2 (a) SA与FA2 (b) SA进行同频点信号比对,若存在同频点信号,则将FA2 (b)中的该频点幅值基于前后极小值进行线性插值处理,获得滤波辐射发射频谱FA3输出; 辐射频谱滤波模块(303)第四方面对FA2 (a) SA与FA2 (b) SA进行同频点信号比对,若不存在同频点信号,则将FA2 (b)作为滤波辐射发射频谱FA3输出; 辐射分析诊断模块(304)对所述的滤波辐射发 Two radiation emission spectrum correction CFA (b) perform the noise canceling process to obtain a second noise canceling FA2 radiation emission spectrum (B) output; radiation spectral filtering module (303) to a first aspect of the radiation emission spectrum of the first noise canceling FA2 (a) conducting maximum traverse, the longitudinal amplitude is greater than the minimum value of 5dB or more default frequency electromagnetic signal FA2 (a) SA; radiation spectral filtering module (303) to a second aspect of the second noise canceling radiation emission spectrum FA2 (b) for maximum traverse, the longitudinal amplitude is greater than the minimum value of 5dB or more default frequency electromagnetic signal FA2 (b) SA; radiation spectral filtering module (303) facing the third party FA2 (a ) SA with the FA2 (b) SA comparison with the signal frequency, with the frequency signal if present, the frequency will be the magnitude of FA2 (b) linear interpolation is performed based on the minimum value before and after the treatment, radiation emission filtering obtained output spectrum FA3; (303) of the fourth aspect of the radiation spectral filtering module FA2 (a) SA performed with the frequency of the signal ratio FA2 (b) SA, if the presence of the same frequency point signal, the FA2 (b) as an radiation emission spectrum of the filtered output the FA3; radiation diagnostic module (304) of said filtered radiation hair 频谱FA3进行辐射分析诊断,判断被试品的辐射发射特性是否合格或者是否异常,具体步骤为: 第304-1步:根据GJB 151A - 1997《军用设备设备和分系统电磁发射和敏感度要求》和GJB 152A - 1997《军用设备设备和分系统电磁发射和敏感度测量》中RE102测试项目要求和方法,得到RE102极限值曲线; 第304-2步:将所述的滤波辐射发射频谱FA3与RE102极限值曲线进行比对,提取出被试品的辐射发射超标频点;FA3中幅值大于RE102极限值曲线的频点即为超标频点; 第304-3步:根据是否存在超标频点判断被试品的辐射发射特性是否合格,若存在超标频点,则被试品的辐射发射特性不满足GJB 151A — 1997《军用设备设备和分系统电磁发射和敏感度要求》中的相关规定,即为不合格;反之,则为合格; 第304-4步:将所述的滤波辐射发射频谱FA3与快速诊断比对数据库中的信息形成的 FA3 radiation spectrum analysis and diagnosis, it is determined whether or not the radiation emitting characteristics or qualifying test is abnormal, the specific steps: Step 304-1: The GJB 151A - 1997 "military equipment devices and subsystems electromagnetic emissions and susceptibility requirements" and GJB 152A - 1997 "military equipment devices and subsystems electromagnetic emission and susceptibility measurements" in the project requirements and test methods RE102, RE102 limit value curve obtained; 304-2 step of: filtering the radiation and the emission spectrum FA3 RE102 limit value curve for comparison, was extracted excessive radiation emission frequency of the test; the FA3 magnitude greater than the frequency of the limit value curve to be contaminated RE102 frequency; of step 304-3: the presence or absence of excessive frequency determining the radiation-emitting characteristics of the test product is qualified, if excessive frequency exist, they are emitted radiation characteristic does not satisfy the test GJB 151A - 1997 "military equipment devices and subsystems electromagnetic emissions and susceptibility requirements" in the relevant regulations, i.e., unqualified; on the contrary, it is passed; 304-4 step of: filtering said emitted radiation spectrum is formed FA3 than rapid diagnosis information in the database 准曲线进行比对,提取出被试品的辐射发射异常频点;FA3中幅值与标准曲线相差2dB以上的频点即为异常频点; 第304-5步:根据是否存在异常频点判断被试品的辐射发射特性是否异常,若存在异常频点,即为异常;反之,则为正常。 Standard curve for comparison, extracts a sample of the emitted radiation frequency anomaly; the FA3 in magnitude than a standard curve 2dB difference frequency is the abnormal frequency; 304-5 step of: frequency according to whether there is an abnormality determination the radiation-emitting characteristics of the test sample is abnormal, when the frequency abnormality is present, is the abnormal; the other hand, was normal. 当被试品的辐射发射特性发生异常时,根据差异幅度判定异常程度,若FA3中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若FA3中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;gFA3中异常频点幅值与标准曲线相差SdB以上,则为重度异常; 环境电磁频谱动态显示模块(305 ) 一方面用于显示修正环境电磁频谱CFB,另一方面依据EMI测试、分析诊断条件设置、电磁环境检测条件设置的不同而不断刷新、实时地在计算机的显示屏上进行测试结果显示; 电缆传导分析诊断模块(306)对所述的修正电缆传导频谱CFC进行电缆传导分析诊断,判断被试品的电缆传导特性是否异常,具体步骤为: 第306-1步:将频谱系数修正模块301输出的修正电缆传导频谱CFC与快速诊断比对数据库中的信息形成的标准曲线进行比对,提取出被试品的电缆传导异常频点。 When an exception occurs the radiation emitted is characteristic of the test sample, the degree of abnormality is determined according to the magnitude of the difference, if the abnormal frequency FA3 amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; FA3 if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; gFA3 abnormal frequency amplitude difference to a standard curve SdB more, severe abnormalities; ambient electromagnetic spectrum dynamic display module (305) for displaying an aspect of correcting the ambient electromagnetic spectrum the CFB, according to another aspect EMI testing, analysis and diagnosis condition setting, the different setting condition detecting electromagnetic environment constantly refresh, test results are shown in real time on the computer screen; cable conduction analysis of diagnostic module (306) of the Fixed cable for conducting CFC spectrum analysis and diagnosis conductive cable, the cable is determined to be the conduction characteristic test is abnormal, the specific steps: step 306-1: the spectral coefficient correction module 301 outputs corrected spectrum conducting cable and rapid diagnosis than CFC standard curve information database formed for comparison, the conductive cable being extracted abnormal test frequency. CFC中幅值与标准曲线相差2dB以上的频点即为异常频点; 第306-2步:根据是否存在异常频点判断被试品的电缆传导特性是否异常,若存在异常频点,即为异常;反之,则为正常。 The CFC 2dB amplitude difference than a standard curve of frequency is the abnormal frequency; 306-2 step of: conducting cable to be characteristic test is abnormal based on whether there is an abnormality frequency determination, if the present abnormal frequency, i.e. abnormal; on the contrary, it was normal. 当被试品的电缆传导特性发生异常时,根据差异幅度判定异常程度,若CFC中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若CFC中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;若CFC中异常频点幅值与标准曲线相差SdB以上,则为重度异常; 端口传导分析诊断模块(307)对所述的修正端口传导频谱CFD进行端口传导分析诊断,判断被试品的端口传导特性是否合格或者是否异常,具体步骤为: 第307-1步:根据GJB 151A - 1997《军用设备设备和分系统电磁发射和敏感度要求》和GJB 152A - 1997《军用设备设备和分系统电磁发射和敏感度测量》中CE106测试项目要求和方法,得到CE106极限值曲线; 第307-2步:将频谱系数修正模块301输出的修正端口传导频谱CFD与CE106极限值曲线进行比对,提取出被试品的端口传导超标频点;CFD中幅值大于CE106极限值曲线的频点即 When the cable is abnormal conduction characteristics of the sample occurs, according to the magnitude of the difference determines the degree of abnormality, when the abnormality CFC frequency amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; CFC if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; CFC abnormal if the magnitude of the frequency difference of the standard curve SdB more, severe abnormalities; port conduction analysis of diagnostic module (307) for correcting spectral CFD conducting said port conducting analysis and diagnosis port, the port is determined by the conductive characteristics of the test sample is abnormal or is qualified, the specific steps: step 307-1: the GJB 151A - 1997 "military equipment devices and subsystems electromagnetic emissions and susceptibility requirements" and GJB 152A - 1997 "military equipment devices and subsystems electromagnetic emission and susceptibility measurements" in the project requirements and test methods CE106, CE106 limit value curve obtained; 307-2 step of: conducting the correction port 301 outputs spectral coefficients of the spectral correction module CFD and CE106 limit value curve for comparison, the extracted sample port is exceeded conducting frequency; CFD is greater than the magnitude of the frequency limit value curve, i.e. CE106 为超标频点; 第307-3步:根据是否存在超标频点判断被试品的端口传导特性是否合格,若存在超标频点,则被试品的端口传导特性不满足GJB151A — 1997《军用设备设备和分系统电磁发射和敏感度要求》中的相关规定,即为不合格;反之,则为合格; 第307-4步:将频谱系数修正模块301输出的修正端口传导频谱CFD与快速诊断比对数据库中的信息形成的标准曲线进行比对,提取出被试品的端口传导异常频点。 Frequency is exceeded; of Step 307-3: The excessive port pass frequency characteristic is determined whether there is conduction characteristic test port is qualified, if the present frequency exceeded, the test is not satisfied were GJB151A - 1997 "Military Equipment devices and subsystems electromagnetic emission and susceptibility requirements "in the relevant regulations, is substandard; on the contrary, it is passed; 307-4 step of: correcting the spectral coefficient correction module 301 outputs the conduction port CFD spectrum and rapid diagnosis ratio standard curve information database formed for comparison, the extracted sample port is abnormal conduction frequency. CFD中幅值与标准曲线相差2dB以上的频点即为异常频点; 第307-5步:根据是否存在异常频点判断被试品的端口传导特性是否异常,若存在异常频点,即为异常;反之,则为正常。 In CFD 2dB amplitude difference than a standard curve of frequency is the abnormal frequency; 307-5 step of: conducting characteristic is the test port is abnormal based on whether there is an abnormality frequency determination, if there is an abnormality frequency, i.e. abnormal; on the contrary, it was normal. 当被试品的端口传导特性发生异常时,根据差异幅度判定异常程度,若CFD中异常频点幅值与标准曲线相差2dB〜4dB,则为轻度异常;若CFD中异常频点幅值与标准曲线相差4dB〜8dB,则为中度异常;若CFD中异常频点幅值与标准曲线相差8dB以上,则为重度异常。 When the characteristics are abnormal conduction test port occurs, the magnitude of the difference is determined according to the degree of abnormality, when the abnormality CFD frequency amplitude difference with a standard curve 2dB~4dB, was mildly abnormal; CFD if abnormal frequency and amplitude standard curves differ 4dB~8dB, was moderately abnormal; CFD abnormal if the magnitude of the frequency difference of 8dB above standard curve is severe abnormalities.
  2. 2.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:消噪算法是对第一修正辐射发射频谱CFA (a)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号,将其他频点默认为噪底,统计噪底的最大幅值。 The EMC has the I quantizer EMI rapid test diagnostic system as claimed in claim wherein: denoising algorithm is first correction radiation emission spectrum CFA (a) for traversing the maximum value, the amplitude is greater than before and after the minimum value of 5dB or more default frequency electromagnetic signal, the other default frequency noise floor, the statistical maximum amplitude noise floor. 若噪底的最大幅值小于24(^11¥/111,无需进行消噪处理,辐射发射频谱0?4(&)即为FA2(a)输出;若噪底的最大幅值大于等于24(^11¥/111,先将0?4(&)中筛选出来的电磁信号进行放大处理,信号幅值均增加20dB,然后将整个频谱所有频点的幅值均减小20dB,即可得到消噪后的辐射发射频谱FA2(a)输出。 If the maximum amplitude of the noise floor is less than 24 (^ 11 ¥ / 111, without denoising, radiation emission spectrum 04 (&) is the FA2 (a) an output;? If the noise floor is greater than the maximum amplitude is equal to 24 ( ^ 11 ¥ / 111, first 0? (&) screened out enlargement processing an electromagnetic signal 4, were increased 20dB signal amplitude, then the amplitude of the entire frequency spectrum for all frequencies are reduced 20dB, to obtain extinction radiation emission spectrum FA2 (a) outputs the noise.
  3. 3.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:消噪算法是对第二修正辐射发射频谱CFA (b)进行极大值遍历,将幅值大于前后极小值5dB以上的频点默认为电磁信号,将其他频点默认为噪底,统计噪底的最大幅值。 The EMC has the I quantizer EMI rapid test diagnostic system as claimed in claim characterized in that: a second de-noising algorithm is corrected radiation emission spectrum CFA (b) for maximum traversal, the amplitude is greater than before and after the minimum value of 5dB or more default frequency electromagnetic signal, the other default frequency noise floor, the statistical maximum amplitude noise floor. 若噪底的最大幅值小于24dB u V/m,无需进行消噪处理,辐射发射频谱CFA (b)即为FA2 (b)输出;若噪底的最大幅值大于等于24Db u Vm,先将CFA (b)中筛选出来的电磁信号进行放大处理,信号幅值均增加20dB,然后将整个频谱所有频点的幅值均减小20dB,即可得到消噪后的辐射发射频谱FA2 (b)输出。 If the maximum amplitude of the noise floor is less than 24dB u V / m, without denoising, radiation emission spectrum CFA (b) is the FA2 (b) an output; if the maximum amplitude of the noise floor is greater than or equal 24Db u Vm, first CFA (b) screening out enlargement processing electromagnetic signals, the signal amplitude was increased 20dB, then the amplitude of the entire frequency spectrum for all frequencies are 20dB reduced, to obtain a spectrum of the radiation emitted FA2 (b) after denoising output.
  4. 4.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:硬件设备中的接收天线(11)、电流探头(12)、频谱测试仪(20)和计算机(30)之间的连接关系为;接收天线(11)通过射频线缆连接到频谱测试仪(20)上,电流探头(12)的夹头端夹在被试品的电源线缆上,电流探头(12)的输出端通过探头线缆连接在频谱测试仪(20)上,被试品通过端口线缆连接到频谱测试仪(20)上,频谱测试仪(20)与计算机(30)通过数据线相连。 The EMC has the I quantizer EMI rapid test diagnostic system as claimed in claim characterized in that: the receiving antenna in a hardware device (11), current probe (12), the spectrum tester (20) and a computer ( connection relationship between the 30) is; receiving antenna (11) is connected to the spectrum analyzer test (20) through the RF cable, current probe (12) clamped on a chuck end of the test a power cable, a current probe (12) connected to the output via a probe cable tester in the spectrum (20), is connected to the sample spectrum tester (20) through the cable port, the spectrum tester (20) and the computer (30) via the data connected line.
  5. 5.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:所述频谱测试仪(20)选用测量频率范围为9kHz〜43GHz的手持式频谱分析仪。 The EMC has quantized electromagnetic interference I according to claim rapid diagnostic test system, characterized in that: the spectral tester (20) for the selection of the measurement frequency range 9kHz~43GHz handheld spectrum analyzer.
  6. 6.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:所述接收天线(11)选用全向天线;所述全向天线中包括有SAS-550-1有源拉杆天线,测量频率范围为IOkHz〜60MHz ;SAS_542双锥天线,测量频率范围为20MHz〜330MHz ;SAS-570双脊喇叭天线,测量频率范围为170MHz〜3GHz ;SAS_571双脊喇叭天线,测量频率范围为700MHz〜18GHz。 The EMC has the I quantizer EMI rapid test diagnostic system as claimed in claim characterized in that: the receiving antenna (11) an omnidirectional antenna selection; the all-SAS-550-1 to the antenna comprising active rod antenna, frequency range is IOkHz~60MHz; SAS_542 biconical antenna, frequency range is 20MHz~330MHz; SAS-570 double-ridged horn antenna, frequency range is 170MHz~3GHz; SAS_571 double-ridged horn antenna, the frequency measurement range 700MHz~18GHz.
  7. 7.根据权利要求I所述的具有量化电磁干扰的电磁兼容快速测试诊断系统,其特征在于:所述电流探头(12)的测量频率范围为IOkHz〜100MHz。 7. The rapid test diagnostic system having an electromagnetic compatibility quantized electromagnetic interference according to claim I, wherein: said current probe (12) of the frequency range is IOkHz~100MHz.
CN 201210217966 2012-06-27 2012-06-27 Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference CN102749539B (en)

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CN103063964A (en) * 2012-12-31 2013-04-24 北京航空航天大学 Device layout adjustment method based on ultrashort wave frequency range radiation exposure measurement
CN103063962A (en) * 2012-12-31 2013-04-24 北京航空航天大学 Electrical appliance radiation electromagnetic compatibility obtaining method based on living area exposure limiting value
CN103076521A (en) * 2012-12-31 2013-05-01 北京航空航天大学 Equipment layout regulating method on basis of exposure measurement on microwave frequency band radiation
CN103454524A (en) * 2013-08-22 2013-12-18 北京航空航天大学 System for measuring electromagnetic compatibility based on geographic information system and programmable attenuator
CN103760426A (en) * 2013-11-28 2014-04-30 电子信息系统复杂电磁环境效应国家重点实验室 Complex electromagnetic environment measuring system and method based on vectors
CN105044520A (en) * 2015-08-06 2015-11-11 西安电子科技大学 Method and device for measuring electromagnetic emission characteristics of electronic device on site
CN105223435A (en) * 2015-08-31 2016-01-06 北京航天长征飞行器研究所 Missile-borne anti-interference-antenna automatic test system and test method
CN105717372A (en) * 2016-01-05 2016-06-29 中车南京浦镇车辆有限公司 Train inside static magnetic field test and running state analysis apparatus and analysis method
CN105790863A (en) * 2016-03-02 2016-07-20 北京盈想东方科技发展有限公司 Single-channel frequency spectrum monitoring device
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CN106053982A (en) * 2016-05-25 2016-10-26 北京航空航天大学 Electromagnetic compatibility analysis method of radio-frequency module backboard
CN106526390A (en) * 2016-12-23 2017-03-22 安徽华东光电技术研究所 Electronic compatible EMC conduction simple test method
CN106526380A (en) * 2016-11-18 2017-03-22 北京航空航天大学 Electromagnetic emission element detection and analysis system

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CN103048561B (en) * 2012-12-11 2015-04-08 上海卫星工程研究所 EMC (Electro Magnetic Compatibility) test method of deep space aircraft coupling
CN103048561A (en) * 2012-12-11 2013-04-17 上海卫星工程研究所 EMC (Electro Magnetic Compatibility) test method of deep space aircraft coupling
CN103076521B (en) * 2012-12-31 2015-02-11 北京航空航天大学 Equipment layout regulating method on basis of exposure measurement on microwave frequency band radiation
CN103063962A (en) * 2012-12-31 2013-04-24 北京航空航天大学 Electrical appliance radiation electromagnetic compatibility obtaining method based on living area exposure limiting value
CN103076521A (en) * 2012-12-31 2013-05-01 北京航空航天大学 Equipment layout regulating method on basis of exposure measurement on microwave frequency band radiation
CN103063964A (en) * 2012-12-31 2013-04-24 北京航空航天大学 Device layout adjustment method based on ultrashort wave frequency range radiation exposure measurement
CN103063964B (en) * 2012-12-31 2015-05-20 北京航空航天大学 Device layout adjustment method based on ultrashort wave frequency range radiation exposure measurement
CN103063962B (en) * 2012-12-31 2015-06-24 北京航空航天大学 Electrical appliance radiation electromagnetic compatibility obtaining method based on living area exposure limiting value
CN103454524A (en) * 2013-08-22 2013-12-18 北京航空航天大学 System for measuring electromagnetic compatibility based on geographic information system and programmable attenuator
CN103760426A (en) * 2013-11-28 2014-04-30 电子信息系统复杂电磁环境效应国家重点实验室 Complex electromagnetic environment measuring system and method based on vectors
CN103760426B (en) * 2013-11-28 2016-06-08 电子信息系统复杂电磁环境效应国家重点实验室 A complex electromagnetic environment measurement vector-based method
CN105891620A (en) * 2014-11-17 2016-08-24 机械工业仪器仪表综合技术经济研究所 Test system used for testing CMC chip electromagnetic compatibility radiation characteristic
CN105044520A (en) * 2015-08-06 2015-11-11 西安电子科技大学 Method and device for measuring electromagnetic emission characteristics of electronic device on site
CN105223435B (en) * 2015-08-31 2018-10-09 北京航天长征飞行器研究所 One kind of automatic antenna interference missile test system and test method
CN105223435A (en) * 2015-08-31 2016-01-06 北京航天长征飞行器研究所 Missile-borne anti-interference-antenna automatic test system and test method
CN105717372A (en) * 2016-01-05 2016-06-29 中车南京浦镇车辆有限公司 Train inside static magnetic field test and running state analysis apparatus and analysis method
CN105790863B (en) * 2016-03-02 2017-04-26 北京盈想东方科技股份有限公司 Single-channel spectrum monitoring equipment
CN105790863A (en) * 2016-03-02 2016-07-20 北京盈想东方科技发展有限公司 Single-channel frequency spectrum monitoring device
CN106053982A (en) * 2016-05-25 2016-10-26 北京航空航天大学 Electromagnetic compatibility analysis method of radio-frequency module backboard
CN106526380A (en) * 2016-11-18 2017-03-22 北京航空航天大学 Electromagnetic emission element detection and analysis system
CN106526390A (en) * 2016-12-23 2017-03-22 安徽华东光电技术研究所 Electronic compatible EMC conduction simple test method

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