The implementation of digital signal process system based on FPGA is an important method for embedded system. Pulse compression can be implemented in digital method. The realization of a multichannel pulse compression system by using all digital method has the characteristics of high reliability, strong anti-disturbance, good flexibility and convenient for application. In essence, pulse compress is a method of frequency spectrum expanding, and is used in matched filtering. It incarnates the matching level of filter and the expectant phase of received signal.