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Radar echo signal simulation method and system

A radar echo and signal simulation technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as insufficient effect, and achieve the effect of cost saving and comprehensive and accurate inspection

Active Publication Date: 2018-11-23
成都中宇微芯科技有限公司
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Problems solved by technology

The first two methods have their own defects, and the third method, that is, the mixed software and hardware implementation method can simulate radar echoes more effectively, but the simulated radar echo information is set by software, and the effect is not good enough.

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  • Radar echo signal simulation method and system
  • Radar echo signal simulation method and system

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Embodiment Construction

[0084] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0085] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for simulating radar echo signals, and the method includes:

[0086] S1: Receive radar transmission signal;

[0087] S2: Perform the first down-conversion processing on the received radar transmission signal to obtain an intermediate frequency signal with modulation information;

[0088] S3: Perform a second down-conversion process on the intermediate frequency signal with modulation information to obtain a low-frequency I / Q signal with delay time difference information;

[0089] S4: Convert the low-frequency I / Q signal with delay time difference information into the corresponding digital signal;

[0090] S5: According to the obtained digital sig...

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Abstract

The invention relates to the technical field of radar echo signal simulation. The embodiments specifically provide a radar echo signal simulation method and system. According to the radar echo signalsimulation method, radar transmission signals are received and are subjected to down-conversion processing twice; the modulation information of the radar transmission signals, the parameter information of a simulation target and the azimuth information of the simulation target are obtained through algorithm processing, and, finally digital signals carrying target information are synthesized; the digital signals carrying target information are converted into simulation signals and radar echo signals are emitted after two-time up-conversion processing. The radar echo signal simulation method does not need instruction of actual targets for simulation, thereby saving cost; the method can simulate all information of targets and can be directly applied to radar electronic warfare simulation tests or vehicle-mounted radar echo simulation tests, so that the performance of tested targets / systems can be tested comprehensively and accurately.

Description

Technical field [0001] The invention relates to the technical field of radar echo signal simulation, in particular to a radar echo signal simulation method and system. Background technique [0002] In the design and realization of a specific radar target signal simulator, there are three means: full hardware realization, full software realization, and software and hardware mixed realization. The three simulation methods are introduced below. [0003] The first simulation method, full hardware implementation, that is, the physical simulation method is a dedicated and independent hardware device, which realizes the reproduction of various information of the radar target signal through the hardware platform. It has the advantages of fast simulation speed and high real-time performance, but the disadvantage is that the hardware design is complex, the hardware needs to complete a large amount of calculation, the hardware performance requirements are high, the flexibility is not strong,...

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 唐海林李一虎熊永忠
Owner 成都中宇微芯科技有限公司
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