Civil continuous wave radar target simulation method

Abstract

The invention relates to the field of radar simulation target detection, in particular to a civil continuous wave radar target simulation method. The method includes: generating eight paths of identical clocks through a same active crystal oscillator and supplying the eight paths of identical clocks to an eight-path digital frequency synthesizer, and further comprises the steps of: S1, determiningthe number i of receiving channels at the rear end of a tested radar; S2, calculating a frequency value and an attenuation value; S3, inputting the parameters into the eight-path digital frequency synthesizer to obtain parameters of each channel; S4, accessing a single channel; S5, cascading channels; S6, conducting single detection; S7, carrying out multiple detection; multi-channel signals withadjustable frequency, phase and amplitude are generated through multi-channel coherent signals, targets of different distance angle intensities of the continuous wave radar are simulated, the problems of design verification and production calibration of the civil continuous wave radar are solved, and the reliability of mass production of the civil radar is guaranteed.

Description

technical field [0001] The invention relates to the field of radar simulation target detection, in particular to a civilian continuous wave radar target simulation method. Background technique [0002] In recent years, in addition to military applications, radar has also begun to be used in civilian fields, especially in the transportation field. Complex application environments require stable and reliable radar performance. In order to ensure the reliability of civilian radar production and design, certain instruments are required. The radar target simulator is a feasible device. The current radar target simulation method is mainly aimed at the pulse radar of the Doppler system. Generally, it only needs to simulate the radar signal of one channel to meet the requirements. requirements, while civilian radar generally uses FMCW scanning mode, and the radar has multiple receiving channels, the existing target simulation method is not suitable for this system of radar, so a new...

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Problems solved by technology

[0002] In recent years, in addition to military applications, radar has also begun to be used in civilian fields, especially in the transportation field. Complex application environments require stable and reliable radar performance. In order to ensure the reliability of civilian radar production and design, certain instruments are required. The radar target simulator is a feasible device. The current radar target simulation method is mainly aimed at the pulse radar of the Doppler system. Generally, it only needs to simulate the radar signal of one channel to meet the requirements. requirements, while civilian radar generally uses FMCW scanning mode, and the radar has multiple receiving channels, the existing target simulation method is not suitable for this system of radar, so a new radar target simulation method is needed to meet the requirements of radar design verification and production testing

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