Performance limit measurement method of radar communication integrated system based on positioning estimation rate
A measurement method and system performance technology, applied in the field of radar, can solve problems such as performance boundaries that have not been studied
Active Publication Date: 2019-06-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Measuring the performance bounds of a radar-communication integration system using position estimation rates has not been studied so far in published articles
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[0069] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.
[0070] The present invention mainly adopts the method of simulation experiment to verify, and all steps and conclusions are verified correctly on Matlab2014. The present invention will be further described in detail with regard to specific embodiments below.
[0071] Step 1: Receive signal modeling:
[0072] The receiving window simultaneously receives the radar signal z r (t) and communication signal z c (t), the composite signal is z(t) as:
[0073] z(t)=z r (t)+z c (t) (1)
[0074] Define the eigenvector a(θ) of the antenna:
[0075] a(θ)=[1,e -j2πdcosθ / λ ,···,e -j2π(N-1)dcosθ / λ ] T (2)
[0076] where d is the antenna element spacing, λ is the plane wave wavelength, θ is the DOA, and the received radar signal z r (t) is given by: ...
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The invention discloses a performance limit measurement method of a radar communication integrated system based on a positioning estimation rate, applied to the technical field of radars. In view of the problem that only target distance information is available and angle information is unavailable during the performance limit measurement of the radar communication integrated system in the prior art, the target distance information and the angle information are comprehensively considered in the performance limit measurement method disclosed by the invention, and the performance measurement of the radar communication integrated system is achieved by performing modelling on a radar signal, a communication signal and a composite signal of the radar signal and the communication signal receivedby a receiver, dividing a frequency spectrum sharing condition into a traditional single sub-bandwidth, a communication independent sub-bandwidth and a radar independent sub-bandwidth according to the radar and frequency spectrum sharing mode in the radar communication integrated system, then characterizing radar function and communication function features by using the positioning estimation rate and a communication rate respectively, and finally performing theoretical derivation on the performance limit of the radar communication integrated system under different frequency band sharing modes by using the positioning estimation rate and the communication rate.
Description
technical field [0001] The invention belongs to the technical field of radar, and in particular relates to a performance limit measurement technology of a radar communication integrated system. Background technique [0002] Modern radar devices perform multiple functions such as target detection, device deployment and sharing acquired information with other devices. How to combine radar equipment with communication equipment to form a complete system and solve the problem of rational utilization of resources has become an increasing research topic in recent years. Combining radar equipment with communication equipment to form an integrated system, how to solve the problem of rational utilization of resources has become one of the research hotspots of experts at home and abroad. [0003] Radar and communication spectrum sharing is one of the key researches to solve the shortage of spectrum resources and improve spectrum utilization. This is a research topic of great practic...
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IPC IPC(8): G01S7/40H04W64/00
Inventor 杨晓波张天贤邓艳红田团伟刘辛雨孔令讲崔国龙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA