SAR Multiple Target Detecction Under the Condition of Low SNR
Songcan Chen · 2004
AimedatthelimitationofSTFT(shottime fouriertransform)-Hough-WavelettransformandWigner- Hough transform in detecting multi-target under the condition of low SNR, a new method is proposed.In the method, the pseudo inverse of the statistical noises are firstly used to estimate the noise model in the received SAR signals, then the denoised signal is obtained by subtracting the estimated noise from the received SAR signal. Simulation re- sults show that the proposed method in this paper can be used to efficiently control the false alarm ratio as compared with STFT-Hough-Wavelet transform and Wigner-Hough transform.