CN202261309U - PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for frequency hopping performance detection - Google Patents
PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for frequency hopping performance detection Download PDFInfo
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- CN202261309U CN202261309U CN2011203729706U CN201120372970U CN202261309U CN 202261309 U CN202261309 U CN 202261309U CN 2011203729706 U CN2011203729706 U CN 2011203729706U CN 201120372970 U CN201120372970 U CN 201120372970U CN 202261309 U CN202261309 U CN 202261309U
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- pxi bus
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Abstract
The utility model discloses PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for the frequency hopping performance detection. An analogue-to-digital conversion unit, a signal processing unit, a frequency hopping detection unit, a PXI bus interface unit and an external card-plugging E5 are connected to form an integral module. The broadband signal acquisition technology, the precise measurement technology for frequency and the power detection technology are based as integral design thoughts, a hardware platform is built by a reasonable circuit chip and a simple mechanical structure, a standard software package is compiled by frequency hopping performance detection software, and the parameters, such as the average transmission power of the frequency hopping, frequency hopping rate, channel switching time, frequency hopping frequency and the like are precisely analyzed and calculated by the broadband acquisition and the energy detection of a frequency hopping signal so as to evaluate the frequency hopping radio performance. The PXI bus-based card-plugging structure module for the frequency hopping performance has the characteristics of reasonable design, simple structure, wide frequency range, high power precision, multiple frequency hopping frequency points, short channel switching time, high reliability, good physical interface and the like.
Description
Technical field
The utility model relates to a kind of detection module, particularly a kind of frequency hopping Performance Detection card insert type construction module based on the PXI bus.
Background technology
Frequency hopping is one of the most frequently used spread spectrum mode, and its operation principle is meant the carrier frequency of receiving-transmitting sides transmission signals, carries out the communication mode of Discrete Change according to predetermined rule.The rule that carrier frequency changes in the frequency hopping communications is called frequency hopping pattern.Usually we hope that frequency hopping pattern needs to change randomly so that irregular following better.In view of time domain, Frequency Hopping Signal is a multifrequency frequency shift keyed signals; From frequency domain, the frequency spectrum of Frequency Hopping Signal be one on broadband very with little uniformly-spaced random jump.
The characteristics of frequency-hopping system depend on its spread-spectrum mechanism to a great extent.Frequency hopping spread spectrum differs widely with Direct swquence spread spectrum on mechanism.The shared channel width of the residence time of each jumping is narrow band spectrum, and according to the frequency hopping pattern time to time change, the saltus step in a very wide frequency band of these instantaneous narrow band spectrum forms a frequency hopping bandwidth.Because frequency hopping rate is very fast, thereby on macroscopic view, realized the expansion of frequency spectrum.
The difference of frequency hopping pattern, its jamproof effect also is not quite similar.When the randomness of frequency hopping pattern was big more, the frequency hopping anti-jamming capacity was just strong more.So-called antijamming capability is strong, is meant that in fact the probability of running into interference is very little.Disturb in order to tackle tracking mode, hope that the residence time of Frequency Hopping Signal is short more good more, let jammer have little time dispensing and disturb.Therefore, hope that the jumping speed of frequency hopping communications is should be as much as possible better fast.Present various countries' one of reason of the fast frequency-hopped signal equipment of research of trying to be the first that Here it is.
Along with the continuous development of the communication technology, also have higher requirement for the frequency hopping communications compatibility of apparatus, have the developing direction that interoperability, the intercept probability is low and antijamming capability is strong software radio have become research.It should have the frequency of deciding and two kinds of working methods of frequency hopping.When fixed frequently work, can be compatible mutually with existing radio station.When frequency hopping is worked, have two kinds of working methods of digital encrypted word and digital unencryped word and data-transformation facility.Compare with fixed communication frequently, have electronic warfare capability.
Frequency hopping communications of today is applied to very high frequency(VHF) and hyperfrequency frequency range from original high-frequency band, and its frequency band is wideer, and jumping speed is faster, so its interference free performance is better, security performance is stronger, can adapt to more bad working environment.The thing followed is higher to the frequency hopping performance requirement, and its detection means is also more comprehensive and accurate.Yet, adopt integrated test system or frequency spectrograph, oscilloscope, Modulation analysis appearance etc. to concentrate together to the frequency hopping performance detection more at present and detect, not only number of devices is many during detection, and bulky, and its measuring accuracy does not often reach desirable requirement yet.This is that the insider expects the difficult problem that solves in a hurry.
Summary of the invention
The purpose of the utility model is exactly in order to overcome the deficiency of above-mentioned prior art, a kind of novel, effective frequency hopping Performance Detection card insert type construction module based on the PXI bus to be provided.
In order to achieve the above object, the technical scheme of the utility model employing is:
A kind of frequency hopping Performance Detection card insert type construction module based on the PXI bus by AD conversion unit 1, signal processing unit 2, frequency hopping detecting unit 3 and the PXI Bus Interface Unit 4 plug-in card E 5 together with peripheral hardware, is connected to form an integral module.Wherein:
Said AD conversion unit 1 includes an attenuator group Z and a broadband A C transducer E1 again; And the input of E1 can be selected any one among Z1, Z2 or the Z3 in the attenuator group; Collection is from the radio frequency analog signal of tested frequency hopping radio set; Through the modulus treatment conversion is A1.0～A1.9, and B1.0～B1.9, C1.0～C1.9 be totally 3 road high-speed data signals and deliver to signal processing unit 2 and handle.
Said signal processing unit 2 includes DDR memory and extensive programmable gate array E2 of FPGA of a 2GB again, and the data-signal of telling after the analog-to-digital conversion is input in the FPGA, and stores the sample data of about 1.6S among the DDR into.After memory was filled with, the FPGA sense data was accomplished fixed point FFT and Z-CHIP conversion then, carries out the coarse positioning and the corresponding digital down-conversion of signal frequency point, then result of calculation is delivered to frequency hopping detecting unit 3 and handles.
Said frequency hopping detecting unit 3 is DSP Frequency Hopping Signal processor E3; To carry out frequency hopping transmitting power analysis of spectrum, frequency hopping frequency set and channel search switching time and frequency hopping rate and hop bands calculating etc. from the data-signal of FPGA; Accurately accomplish the frequency hopping Performance Detection, and its result is delivered to PXI Bus Interface Unit 4 through FPGA again.
Said PXI Bus Interface Unit 4 is PXI interface chip E4; To deliver to the PXI bus through each parameter signal of frequency hopping performance of FPGA output by the 3U PXI 2 groove position plug-in card E5 of peripheral hardware from frequency hopping detecting unit 3, in order to realize the data and the command interaction of the utility model and external piloting control computer.
The utility model is based on being global design thought with broadband signal acquisition technique, frequency accurate measuring technique and power detection techniques; Set up hardware platform to adopt reasonable circuit chip and simple mechanical structure; Be support by the external piloting control computer; Utilize frequency hopping Performance Detection software, work out out the real-time standard software package of a cover, gather and energy measuring through the broadband of frequency hopping radio set output signal; Accurately calculate critical performance parameters such as the frequency hopping emission average power of frequency hopping radio set under the different capacity pattern, frequency hopping rate, channel switching time, frequency hopping frequency, thus the frequency hopping operating state of assessment frequency hopping radio set.Characteristics such as have reasonable in design, simple in structure, wide frequency range, the average power precision is high, the frequency hopping frequency is many, channel switching time is short, reliability is high, physical interface is good.
Description of drawings
Fig. 1 is that the utility model is based on the whole electric principle wiring schematic diagram of the frequency hopping Performance Detection card insert type construction module of PXI bus.
Symbol description among the figure:
The 1st, AD conversion unit, wherein:
Z is attenuator group: Z1, Z2 and Z3,
E1 is a broadband A C transducer;
The 2nd, signal processing unit, wherein:
DDR is a memory,
E2 is the extensive programmable gate array of FPGA;
The 3rd, the frequency hopping detecting unit, wherein:
E3 is a DSP Frequency Hopping Signal processor;
The 4th, the PXI Bus Interface Unit, wherein:
E4 is the PXI interface chip;
E5 is 3U PXI 2 groove position plug-in cards.
Embodiment
See also shown in Figure 1ly, be the utility model specific embodiment.
As can beappreciated from fig. 1: the utility model is connected to form an integral module by AD conversion unit 1, signal processing unit 2, frequency hopping detecting unit 3 and the PXI Bus Interface Unit 4 plug-in card E 5 together with peripheral hardware.Wherein:
Said AD conversion unit 1 includes an attenuator group Z and a broadband A C transducer E1 again; And 3 groups of output terminals A 1.0～A1.9 of E1; B1.0～B1.9 and C1.0～C1.9 and successively respectively with signal processing unit 2 in 3 groups of input P1.0～P1.9 of the extensive programmable gate array E2 of FPGA, P2.0～P2.9 is connected with P3.0～P3.9 is corresponding.
Said signal processing unit 2 includes DDR memory and extensive programmable gate array E2 of FPGA of a 2GB again, and E2 is provided with 4 groups of output ports, i.e. P4.0～P4.31, P5.0～P5.23, P6.0～P6.29 and P7.0～P7.31.
In the said signal processing unit 22 groups of output P4.0～P4.31 of the extensive programmable gate array E2 of FPGA and P5.0～P5.23 successively respectively with frequency hopping detecting unit 3 in be connected corresponding of 2 groups of output D0～D31 of DSP Frequency Hopping Signal processor E3 with ADD0～ADD23.
In the said signal processing unit 22 groups of output P6.0～P6.29 of the extensive programmable gate array E2 of FPGA and P7.0～P7.31 successively respectively with PXI Bus Interface Unit 4 in be connected corresponding of 2 groups of input LA2～LA31 of PXI interface chip E4 with LD0～LD31.
The output port of PXI interface chip E4 is provided with plug-in card E5 outward in the said PXI Bus Interface Unit 4, is connected with the PXI bus then.
What be worth explanation is: the model of the broadband A C transducer E1 that adopts in the utility model specific embodiment is AT84S004; The model of the extensive programmable gate array E2 of FPGA is EPIS40F1020C5; The model of DSP Frequency Hopping Signal processor E3 is APSP21369, and the model of PXI interface chip E4 is PCI9056, and the model of peripheral hardware plug-in card is 3U PXI 2 groove positions; And Z1, Z2 and Z3 among the attenuator group Z are the self-control special purpose parts, and all the other are technical grade product.
In addition, can detected main frequency hopping performance parameter among the utility model embodiment following:
Frequency range is 1MHZ～550MHZ (segmentation access);
Frequency hopping emission average power precision≤10%;
Frequency hopping rate≤650 jumping/seconds;
Jump fast accuracy of measurement≤3%;
Input power range is 0.5W～65W;
The frequency hopping frequency set is 1～10000 Frequency point;
Channel switching time >=1 microsecond.
Above embodiment is the preferred embodiment of the utility model, in order to the technical characterictic and the exploitativeness of explanation the utility model, is not in order to limit the right of applying for a patent of the utility model; Above simultaneously description should be understood and implemented for knowing those skilled in the art.Therefore, other all should be included within the described claim in the change or the modification that do not break away from the equivalence of being accomplished under the prerequisite that the utility model discloses.
The utility model is a rare frequency hopping Performance Detection card insert type construction module based on the PXI bus, and this module is creative, novelty, practicality and progressive, meets the utility application important document, so file an application according to Patent Law.
Claims (5)
1. based on the frequency hopping Performance Detection card insert type construction module of PXI bus,, be connected to form an integral module, it is characterized in that by AD conversion unit ⑴, signal processing unit ⑵, frequency hopping detecting unit ⑶ and PXI Bus Interface Unit ⑷ plug-in card E5 together with peripheral hardware:
Said AD conversion unit ⑴ includes an attenuator group Z and a broadband A C transducer E1 again; And 3 groups of output terminals A 1.0～A1.9 of E1; B1.0～B1.9 and C1.0～C1.9 and successively respectively with signal processing unit ⑵ in 3 groups of input P1.0～P1.9 of the extensive programmable gate array E2 of FPGA, P2.0～P2.9 is connected with P3.0～P3.9 is corresponding.
2. the frequency hopping Performance Detection card insert type construction module based on the PXI bus as claimed in claim 1 is characterized in that:
Said signal processing unit ⑵ includes DDR memory and extensive programmable gate array E2 of FPGA of a 2GB again, and E2 is provided with 4 groups of output ports, i.e. P4.0～P4.31, P5.0～P5.23, P6.0～P6.29 and P7.0～P7.31.
3. the frequency hopping Performance Detection card insert type construction module based on the PXI bus as claimed in claim 1 is characterized in that:
Among the said signal processing unit ⑵ 2 groups of output P4.0～P4.31 of the extensive programmable gate array E2 of FPGA and P5.0～P5.23 successively respectively with frequency hopping detecting unit ⑶ in be connected corresponding of 2 groups of output D0～D31 of DSP Frequency Hopping Signal processor E3 with ADD0～ADD23.
4. the frequency hopping Performance Detection card insert type construction module based on the PXI bus as claimed in claim 1 is characterized in that:
Among the said signal processing unit ⑵ 2 groups of output P6.0～P6.29 of the extensive programmable gate array E2 of FPGA and P7.0～P7.31 successively respectively with PXI Bus Interface Unit ⑷ in be connected corresponding of 2 groups of input LA2～LA31 of PXI interface chip E4 with LD0～LD31.
5. the frequency hopping Performance Detection card insert type construction module based on the PXI bus as claimed in claim 1 is characterized in that:
The output port of PXI interface chip E4 is provided with plug-in card E5 outward among the said PXI Bus Interface Unit ⑷, is connected with the PXI bus then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729706U CN202261309U (en) | 2011-09-28 | 2011-09-28 | PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for frequency hopping performance detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729706U CN202261309U (en) | 2011-09-28 | 2011-09-28 | PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for frequency hopping performance detection |
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| Publication Number | Publication Date |
|---|---|
| CN202261309U true CN202261309U (en) | 2012-05-30 |
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| CN2011203729706U Expired - Fee Related CN202261309U (en) | 2011-09-28 | 2011-09-28 | PCI extensions for instrumentation (PXI) bus-based card-plugging structure module for frequency hopping performance detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994740A (en) * | 2021-04-23 | 2021-06-18 | 成都天锐星通科技有限公司 | Frequency hopping signal parameter estimation method and device, electronic equipment and readable storage medium |
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2011
- 2011-09-28 CN CN2011203729706U patent/CN202261309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994740A (en) * | 2021-04-23 | 2021-06-18 | 成都天锐星通科技有限公司 | Frequency hopping signal parameter estimation method and device, electronic equipment and readable storage medium |
| CN112994740B (en) * | 2021-04-23 | 2021-07-23 | 成都天锐星通科技有限公司 | Frequency hopping signal parameter estimation method and device, electronic equipment and readable storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140928 |
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| EXPY | Termination of patent right or utility model |