Radar detection of range migrated weak target through long-term integration

A long-term integration method for weak target detection is proposed, which is based on Hough transformation. The method is able to integrate target return for a very long time period (even up to tens of seconds) by means of data fusion of multiple range resolution cells and can find the moving target in very low SNR environments where conventional detection techniques are inadequate. Also the 3D information of the target's Doppler frequency, distance and position can be derived. Under the hypothetic conditions that the simulation is carried out, about 6dB of SNR improvement is achieved by the non-coherent integration of Hough detector.