Abstract:

This paper proposes a threedimensional direct data domain algorithm (STRDDD), which joins space, time and range information. Compared with the conventional methods, the algorithm joins the data stored in range cells around the target to be detected and makes full use of additional information on range so as to form a deeper notch against isolated interference in airspace. Moreover, it is robust to the gain and phase errors on steering vector. Results of experiments carried on the MCARM data show that the algorithm can improve the performance of ground moving target indication (GMTI).