CN105842673A - Signal conditioning device and signal conditioning method for subarray-level digital T/R assembly based on transmitting-receiving separation - Google Patents
Signal conditioning device and signal conditioning method for subarray-level digital T/R assembly based on transmitting-receiving separation Download PDFInfo
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- CN105842673A CN105842673A CN201610368877.5A CN201610368877A CN105842673A CN 105842673 A CN105842673 A CN 105842673A CN 201610368877 A CN201610368877 A CN 201610368877A CN 105842673 A CN105842673 A CN 105842673A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides a signal conditioning device for a subarray-level digital T/R assembly based on transmitting-receiving separation. When a transmitting test is conducted, each digital T/R assembly is connected to a first-stage switching network, and construction of a test channel required by an assembly transmitting test is realized in the first-stage switching network; a second-stage switching network realizes distribution of test resources, the test resources in a system are switched to any one first-stage switching network through a switch, and a test for transmitting parameters is completed by using an instrument resource configured by the system after transmitting signal conditioning of the two-stage switching network; and when a receiving test is conducted, a switching network is not introduced any more, excitation signals outputted by a signal generator and calibration noises outputted by a noise source get into each digital T/R assembly through a single-pole double-throw switch and a two-stage power divider based on a hierarchical power division framework. According to the invention, a lot of microwave components are saved, the system integration difficulty is low, the engineering realization feasibility is high, and the cost is low.
Description
Technical field
The present invention relates to technical field of measurement and test, particularly to a kind of Subarray numeral T/R component signals conditioning dress
Put, further relate to a kind of Subarray numeral T/R component signals Opsonizing method.
Background technology
Digital Array Radar is the totally digitilized phased array thunder that a kind of transmitting-receiving all uses digital beam forming technology
Reach.Than tradition phased-array radar, Digital Array Radar has the advantage that it is incomparable, such as dynamic range
Greatly, easily realize multi-beam, low-loss, Sidelobe, low angle altimetry precision is high, manufacturability is strong, system
Mission reliability is high, and therefore, the application prospect of Digital Array Radar is boundless.
Numeral T/R assembly is the elementary cell that Digital Array Radar is most important and quantity is most, numeral T/R group
Part is the Multichannel radar transmit/receive module of a Digital Microwave mixing, and entirety presents light fibrillation, digitlization
With integrated distinguishing feature, be functionally equivalent to tradition the simulation T/R assembly of phased-array radar, phase shift
Device, front front end, frequency source extension set, receive the comprehensive of extension set and a part of Digital Signal Processing extension set.
Owing to have employed waveform generation technique based on DDS and accurate width phase control technology, multichannel based on DDC
Digitlization reception technique, integrated integration transceiver channel designing technique and high-speed high capacity data transmission technology
Etc. a large amount of new technologies and new technology, no matter from the angle of technical system, or from the perspective of implementation,
Numeral T/R assembly is all once leap and the revolution in T/R assembly field.
Compared with simulation T/R assembly, in transmit state, numeral T/R assembly need not input radio frequency simulation
Signal, simply output multiple-passage large power in-pulse modulation signals；Need in receive state to input analog radio frequency
Signal, but no longer export analog radio frequency/intermediate-freuqncy signal, but by the I/Q data of Optical Fiber Transmission.The most just
It is to say, either individual digit T/R module testing, or Subarray numeral T/R module testing, the most not
Involve and launch input signal and receive the conditioning of output signal, and mainly how to realize launching output signal
With the conditioning receiving input signal.It should be noted that and launch output port physically and receive input
Mouth actually same port, simply effect difference under different mode of operations.
Development and application, the test problem of individual digit T/R assembly property index with Digital Array Radar
It is substantially achieved solution.But this can not meet the most far away Digital Array Radar and numeral T/R module development
The needs produced, the most just create digital T/R module testing demand based on submatrix scale.
Current Subarray numeral T/R component test system signal condition scheme is at single component testing scheme
On the basis of expand, below in conjunction with Fig. 1 with the digital T/R assembly that submatrix scale is 8 16 passages be
Example illustrates existing signal condition scheme.
As it is shown in figure 1, the port of each numeral T/R assembly connects a directional coupler, small-power couples
End connects 1 point of 128 road power splitter, high-power straight-through port connecting valve network, altogether 128 orientation couplings
Clutch.When launching test, the high-power transmitting signal of output first passes through the straight-through port of directional coupler and enters
In switching network, then utilize switching network to carry out passage switching, thus complete power, frequency spectrum, coherent ginseng
The test of number；When receiving test, the pumping signal of signal generator output first passes through switching network and enters 1 point
In 128 power splitters, then enter numeral T/R assembly by the coupling port of directional coupler.Said process is exactly
The conditioning process of receiving and transmitting signal.A kind of scheme is also had to change directional coupler into single-pole double-throw switch (SPDT) exactly, with
Sample can also realize nursing one's health purpose.
Certainly, in addition it is also necessary to explanation, this reception class parameter testing of noise coefficient is presently required by transmitting
TCH test channel.Because the receiving signal reason passage insertion loss dividing framework based on merit is relatively big, this is cannot be complete
Becoming noise coefficient test, and launch test conditioning passage and be based primarily upon switch switching mode, insertion loss is relatively
Low, it is appropriate to the test of noise coefficient, but is because serial test, so testing efficiency is relatively low.
The shortcoming that existing receiving and transmitting signal coordinating program exists is:
(1) needing the radio frequency testing parts such as substantial amounts of directional coupler or single-pole double-throw switch (SPDT), not only cost is high,
And it being difficult to carry out the system integration, Project Realization difficulty is big；
(2) if directional coupler changes into single-pole double-throw switch (SPDT), Security of test is low, once single-pole double throw
Switch breaks down, and easily burns power splitter；
(3) switching network have employed integrated design thinking, i.e. utilizes a switching network and measured number T/R
Assembly and tester are attached, and the scale of switching network is big, and autgmentability and maintenanceability are poor；
(4) noise coefficient needs to carry out serial test, testing efficiency ratio one by one by transmitting test conditioning passage
Relatively low.
With development and the application of Digital Array Radar technology, measuring unit needs at individual digit T/R assembly
Solve a digital T/R module testing difficult problem for submatrix scale on the basis of test, relate to the most real among these
Now launch output signal and receive the conditioning of input signal.
Summary of the invention
For solving above-mentioned deficiency of the prior art, the present invention proposes a kind of Subarray separated based on transmitting-receiving
Numeral T/R component signals conditioning device and method.
The technical scheme is that and be achieved in that:
A kind of Subarray numeral T/R component signals conditioning device separated based on transmitting-receiving, when launching test, every 1
Individual numeral T/R assembly connects 1 one-level switching network, realizes 1 assembly and launch in one-level switching network
TCH test channel needed for test is built；The distribution of secondary switch real-time performance test resource, by the survey in system
Examination resource is switched to any 1 one-level switching network by switch, carries out launching letter through two-stage switching network
Number conditioning after, the instrument resource utilizing system to configure completes the test of emission parameter；
When receiving test, no longer insertion switch network, divide framework based on stratification merit, signal generator exports
Pumping signal and noise source output demarcation noise through single-pole double-throw switch (SPDT), two-stage power splitter enter every 1
Numeral T/R assembly.
Alternatively, current normal noise source is changed to big excess noise ratio noise source (such as more than 35dB), hot
Noise power is greatly improved, and compensate for owing to two-stage merit divides the insertion loss brought so that noise source output
Demarcate noise and every 1 digital T/R assembly after passing through single-pole double-throw switch (SPDT), two-stage power splitter, can also be entered,
Thus ensure that noise coefficient test can also Parallel Implementation, it is no longer necessary to by launching signal condition passage one by one
Carry out serial test.
The invention allows for a kind of Subarray numeral T/R component signals Opsonizing method separated based on transmitting-receiving,
When launching test, every 1 digital T/R assembly connects 1 one-level switching network, in one-level switching network
Realize the TCH test channel needed for test launched by 1 assembly to build；Dividing of secondary switch real-time performance test resource
Join, the test resource in system is switched to any 1 one-level switching network by switch, opens through two-stage
After pass network carries out launching signal condition, the instrument resource utilizing system to configure completes the test of emission parameter；
When receiving test, no longer insertion switch network, divide framework based on stratification merit, signal generator exports
Pumping signal and noise source output demarcation noise through single-pole double-throw switch (SPDT), two-stage power splitter enter every 1
Numeral T/R assembly.
Alternatively, current normal noise source is changed to big excess noise ratio noise source (such as more than 35dB), hot
Noise power is greatly improved, and compensate for owing to two-stage merit divides the insertion loss brought so that noise source output
Demarcate noise and every 1 digital T/R assembly after passing through single-pole double-throw switch (SPDT), two-stage power splitter, can also be entered,
Thus ensure that noise coefficient test can also Parallel Implementation, it is no longer necessary to by launching signal condition passage one by one
Carry out serial test.
The invention has the beneficial effects as follows:
(1) saving a large amount of microwave component, system integration difficulty is low, and Project Realization feasibility is high, and becomes
This is low；
(2) transmitting-receiving test separation improves Security of test；
(3) switching network and the power splitter mentality of designing of stratification is conducive to raising autgmentability and maintainability to refer to
Mark；
(4) currently used normal noise source is replaced by big excess noise ratio noise source, will channel serial enter one by one
Row noise coefficient testing improvement is the test of all channel parallels, thus substantially increases testing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing Subarray numeral T/R component test system signal condition block diagram；
Fig. 2 is that test philosophy block diagram launched by the Subarray numeral T/R assembly of the present invention；
Fig. 3 is that the Subarray numeral T/R assembly of the present invention receives test philosophy block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Current Subarray numeral T/R component test system signal condition scheme derives from single component test side
Case, is not concerned with measurement scope and the difficulty of the rear system integration is increased dramatically.It addition, switching network also can be more
Add complicated huge, the most also carried autgmentability and the problems such as difference can be keeped in repair.If used, directional coupler is changed
Become the scheme of single-pole double-throw switch (SPDT), because the growth of number of switches also can reduce Security of test greatly.Also
Having, noise coefficient needs to carry out serial test one by one by transmitting test conditioning passage, and testing efficiency ratio is relatively low.
Because prior art exists disadvantages mentioned above, the present invention proposes a kind of submatrix progression separated based on transmitting-receiving
Word T/R component signals conditioning device and method, launch test and reception test carries out physical separation up hill and dale,
TCH test channel and tester not re-multiplexing.
As in figure 2 it is shown, the Subarray numeral T/R component signals conditioning device that the present invention separates based on transmitting-receiving is sent out
When penetrating test, it is no longer necessary to for receiving and dispatching a large amount of directional couplers or the single-pole double-throw switch (SPDT) of separation, this is right
Substantial amounts of microwave component will be saved for Subarray is tested.Every 1 digital T/R assembly connects 1 one
Level switching network, if 8 digital T/R assemblies just have 8 one-level switching networks, switchs net in one-level
Realize the TCH test channel needed for test launched by 1 assembly in network to build.As a example by 16 passage numeral T/R assemblies,
It is that 16 road emission ports are (current to 3 quasi-instrument ports such as coherent, frequency spectrum, power inside one-level switching network
Be 6 ports, be 4 coherent ports, 1 frequency spectrum port, 1 power port respectively) switching network.
The distribution of the test resources such as secondary switch real-time performance coherent, frequency spectrum, power, is equivalent to there are many groups in system
Test resource, these test resources can be switched to any 1 one-level switching network by switch.Through two
After level switching network carries out launching signal condition, the instrument resource utilizing system to configure can complete emission parameter
Test.
Additionally, the Subarray that the present invention provides launches signal regulating device not only saves substantial amounts of directional couple
The microwave component such as device or single-pole double-throw switch (SPDT), and unified switching network the most in large scale is split
Become two-stage switching network.Or illustrate as a example by test launched by the digital T/R assembly of 8 16 passages,
The switching network scale of original scheme is 129 ports (128 road T/R ports and 1 road power splitter input ports)
To 8 drive test test instrument ports (wherein coherent port is 4), in large scale, autgmentability and maintainability are the most relatively
Difference.And the unified switching network of bulky complex has been splitted into 8 16 road emission ports to 3 classes altogether by the present invention
The one-level switching network of 6 instrument port and the secondary switch of 1 N × 6 to 3 class totally 6 instrument port
Network (N can be more than measured piece quantity).If measurement scope to be increased, then secondary switch network keeps not
Become, only need to increase corresponding one-level switching network, which improves the autgmentability index of system.This
Outward, after stratification splits, the complexity of every switching network is also greatly lowered, certain Maintainability index
Also can be greatly improved.
During as it is shown on figure 3, receive test, it is no longer necessary to insertion switch network, but divide based on stratification merit
Framework.Or illustrate as a example by the digital T/R assembly of 8 16 passages receives test, signal generator
The pumping signal of output simultaneously enters 8 two grades 1 after single-pole double-throw switch (SPDT), 1 point of 8 power splitter of the first order
Divide in 16 road power splitters, thus form 128 road coherent pumping signals.If first order power splitter branch quantity
More than 8, if measurement scope to be increased, only corresponding two grades 1 point 16 road power splitters need to be increased, this
Sample just improves the autgmentability index of system, and has been also convenient for the system integration.Current is commonly made an uproar simultaneously
Sound source is changed to big excess noise ratio noise source (such as more than 35dB), and hot noise power is greatly improved, compensate for by
The insertion loss brought is divided so that the demarcation noise of noise source output can also pass through single-pole double throw in two-stage merit
Enter every 1 digital T/R assembly after switch, two-stage power splitter, thus ensure that noise coefficient test can also
Parallel Implementation, it is no longer necessary to carry out serial test one by one by launching signal condition passage.
The invention allows for a kind of Subarray numeral T/R component signals Opsonizing method separated based on transmitting-receiving,
Realize principle identical with above-mentioned signal regulating device, repeat no more here.
The Subarray numeral T/R component signals conditioning device and the method that separate based on transmitting-receiving of the present invention save
A large amount of microwave components, system integration difficulty is low, and Project Realization feasibility is high, and low cost；Transmitting-receiving test
Separation improves Security of test；Switching network and the power splitter mentality of designing of stratification are conducive to improving extension
Property and Maintainability index.Currently used normal noise source is replaced by big excess noise ratio noise source, will lead to one by one
It is the test of all channel parallels that road serial carries out noise coefficient testing improvement, thus substantially increases testing efficiency.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (4)
1. the Subarray numeral T/R component signals conditioning device separated based on transmitting-receiving, it is characterised in that
When launching test, every 1 digital T/R assembly connects 1 one-level switching network, in one-level switching network
Realize the TCH test channel needed for test launched by 1 assembly to build；Dividing of secondary switch real-time performance test resource
Join, the test resource in system is switched to any 1 one-level switching network by switch, opens through two-stage
After pass network carries out launching signal condition, the instrument resource utilizing system to configure completes the test of emission parameter；
When receiving test, no longer insertion switch network, divide framework based on stratification merit, signal generator exports
Pumping signal and noise source output demarcation noise through single-pole double-throw switch (SPDT), two-stage power splitter enter every 1
Numeral T/R assembly.
A kind of Subarray numeral T/R component signals conditioning separated based on transmitting-receiving
Device, it is characterised in that described noise source is big excess noise ratio noise source.
3. the Subarray numeral T/R component signals Opsonizing method separated based on transmitting-receiving, it is characterised in that
When launching test, every 1 digital T/R assembly connects 1 one-level switching network, in one-level switching network
Realize the TCH test channel needed for test launched by 1 assembly to build；Dividing of secondary switch real-time performance test resource
Join, the test resource in system is switched to any 1 one-level switching network by switch, opens through two-stage
After pass network carries out launching signal condition, the instrument resource utilizing system to configure completes the test of emission parameter；
When receiving test, no longer insertion switch network, divide framework based on stratification merit, signal generator exports
Pumping signal and noise source output demarcation noise through single-pole double-throw switch (SPDT), two-stage power splitter enter every 1
Numeral T/R assembly.
A kind of Subarray numeral T/R component signals conditioning separated based on transmitting-receiving
Method, it is characterised in that described noise source is big excess noise ratio noise source.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506099A (en) * | 2016-10-28 | 2017-03-15 | 中国人民解放军海军北海舰队航空兵航空仪器计量站 | A kind of device and method for digital T/R component environments experimental test |
| CN111289963A (en) * | 2020-02-29 | 2020-06-16 | 哈尔滨吉赫科技有限责任公司 | Continuous millimeter wave terahertz ultra-wideband noise radar |
| CN113328814A (en) * | 2021-05-27 | 2021-08-31 | 中国船舶重工集团公司第七二三研究所 | Broadband active phased array area monitoring system |
| CN115372751A (en) * | 2022-10-24 | 2022-11-22 | 成都爱科特科技发展有限公司 | Multichannel batched TR component noise coefficient testing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246176A1 (en) * | 2003-06-04 | 2004-12-09 | Farrokh Mohamadi | Phase management for beam-forming applications |
| CN104808184A (en) * | 2015-04-23 | 2015-07-29 | 中国电子科技集团公司第四十一研究所 | Hierarchical switch network device for testing of multiple T/R (transmitting/receiving) modules and method for implementation of hierarchical switch network for testing of multiple T/R modules |
| CN105259544A (en) * | 2015-10-31 | 2016-01-20 | 零八一电子集团有限公司 | Amplitude and phase test system of active phased-array radar T/R assemblies |
-
2016
- 2016-05-19 CN CN201610368877.5A patent/CN105842673B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246176A1 (en) * | 2003-06-04 | 2004-12-09 | Farrokh Mohamadi | Phase management for beam-forming applications |
| CN104808184A (en) * | 2015-04-23 | 2015-07-29 | 中国电子科技集团公司第四十一研究所 | Hierarchical switch network device for testing of multiple T/R (transmitting/receiving) modules and method for implementation of hierarchical switch network for testing of multiple T/R modules |
| CN105259544A (en) * | 2015-10-31 | 2016-01-20 | 零八一电子集团有限公司 | Amplitude and phase test system of active phased-array radar T/R assemblies |
Non-Patent Citations (4)
| Title |
|---|
| JAMES PARTICK HOFFMAN ET AL.: "《Aerospace Conference》", 31 December 2011 * |
| 潘江桥等: "《航天电子互联技术》", 31 December 2015 * |
| 熊毅 等: "有源相控阵天线自动测试系统设计", 《雷达科学与技术》 * |
| 郭挺祥等: "《噪声测量技术》", 29 February 1984 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506099A (en) * | 2016-10-28 | 2017-03-15 | 中国人民解放军海军北海舰队航空兵航空仪器计量站 | A kind of device and method for digital T/R component environments experimental test |
| CN106506099B (en) * | 2016-10-28 | 2019-03-26 | 中国人民解放军海军北海舰队航空兵航空仪器计量站 | A kind of device and method for digital T/R component environment experimental test |
| CN111289963A (en) * | 2020-02-29 | 2020-06-16 | 哈尔滨吉赫科技有限责任公司 | Continuous millimeter wave terahertz ultra-wideband noise radar |
| CN113328814A (en) * | 2021-05-27 | 2021-08-31 | 中国船舶重工集团公司第七二三研究所 | Broadband active phased array area monitoring system |
| CN115372751A (en) * | 2022-10-24 | 2022-11-22 | 成都爱科特科技发展有限公司 | Multichannel batched TR component noise coefficient testing method |
| CN115372751B (en) * | 2022-10-24 | 2022-12-20 | 成都爱科特科技发展有限公司 | Multichannel batched TR component noise coefficient testing method |
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Address after: Huangdao Xiangjiang Road 266555 Shandong city of Qingdao Province, No. 98 Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: Huangdao Xiangjiang Road 266555 Shandong city of Qingdao Province, No. 98 Patentee before: CHINA ELECTRONIC TECHNOLOGY INSTRUMENTS Co.,Ltd. |