Anti-floor sweeping signal interference method and device for car backing radar
A technology of signal interference and reversing radar, which is applied in the direction of measuring devices, sound wave re-radiation, and re-radiation, can solve the problems of inconvenient use of reversing radar, misjudgment of ground echoes as obstacles, false alarms, etc., and reduce installation costs. cost, improved accuracy, and the effect of avoiding false alarms
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[0028] The present invention relates to a reversing radar anti-sweeping signal interference method. The method includes the following steps:
[0029] a) Acquisition steps: After each echo signal is amplified, use an A / D sampler to sample the echo signals of all distance units and convert them into digital signals;
[0030] b) Storage step: save the sampling results of all distance units in the memory;
[0031] c) Suppression step: use the constant false alarm method to process these sampling results to suppress the sweeping signal interference;
[0032] d) Ranging step: Perform target ranging on the echo signal after suppressing the interference of the sweeping signal.
[0033] For different practical applications, the specific constant false alarm method can be used: direct averaging method or two-side election large average method or two-side interval election large average method. Among them: the direct averaging method uses the signals of M sampling points before and after the...
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