Abstract: A real-time radar signal processing system is described,which is based mainly on three pieces of DSP chip ADSP_TS101.In the system,the DSP chips data bus are not connected and the programming memory address are independent from each other,only the link ports provide the communication channel for implementing point to point communications of the DSP chips.Thus,the system has some key features such as simple and efficient hardware circuit with small size,flexible software programming and debugging,and high reliability.It not only can implement the digital pulse compression and coherent integration for radar sum and difference signals,but also control the whole radar system.Furthermore,the system has beed successfully applied in engineering.