Pseudo windowing for synthetic sampled aperture radar target detection

The authors introduce a significant modification to the coherent integration algorithm of synthetic sampled aperture radar (SSAMAR) processing to achieve Hamming-like or cosine to the fourth-like tapering. Only pseudo Hamming or cosine to the fourth tapering is possible because the coefficients of the coherently integrated SSAMAR returns are integers. In other words, the coefficients of the returns will approximate the desired window, by following its general shape. Examples through computer simulation are used to illustrate the new algorithm. The advantages are side-lobe attenuation of 40 to 48 dB, while maintaining the main beam characteristics, and a significant improvement of the SNR.<
>