Abstract: An approach to realize the multi-radar signal simulator by using TMS320C6416 is presented in this paper. In order to achieve arranging the pulse in time order,the time of pulse arriving is mapped to the address of memory, the RF pulse model of radar is also be described。The process of digital signal processing software designing is discussed in succession. If two pulses are arrived at same time, we select the pulse which priority level is high.With the design,the dense radar signal environment can be made vividly.