In this paper , the microwave ranger finder adopts two lattice 1016 pld chips to integrate some separate circuits and make the function simulation . it proves the isp chip may improve the stability of the system and may reduce the power consumption too 同时由于在系统可编程逻辑器件的集成度不断提高,可以在单片芯片中集成整个数字电路系统,使得系统的稳定性得到了提高,而且体积、功耗大大减小。