Joint Reconstruction Method for Radar Pulse ITR Echo Based on Wavelet Transform
In anechoic chamber measurement,intermittent transmitting and receiving(ITR)can effectively solve the problem of mutual coupling caused by the size of anechoic chamber,but ITR will lead to echo loss.In the process of echo reconstruction,noise and clutter are inevitable due to the influence of anechoic chamber structure and the proper-ties of absorbing materials.This results in lower reconstruction performance.To improve the accuracy of echo recon-struction,a joint reconstruction method is proposed for radar pulse ITR echo based on wavelet transform.The accurate reconstruction of linear frequency modulation(LFM)echo under the condition of low signal-to-noise ratio(SNR)is rea-lized by combining the ITR principle and Mallat algorithm.Simulation and experimental results demonstrate that the target echo and one-dimensional range profile obtained by the joint reconstruction method are consistent with the com-plete pulse radar signal.Therefore,the proposed method is effective.
wavelet threshold denoisingintermittent transmitting and receiving(ITR)joint reconstructionrange profile
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