形成线性调频信号，对信号分别进行无加权脉冲压缩和海明加权脉冲压缩-Forming a chirp signal, the signal pulse compression were unweighted and weighted Hamming pulse compression

Synthetic Aperture is when a narrow pulse in range is created (or synthesized). To create such pulse, signal is frequency-modulated. Therefore, the signal frequency changes in time. This is also called chirp signal and depending on whether freq