Abstract: Under the field trial condition,the traditional projectile speed test has high cost and long test cycle,at the same time,the measurement system can’t be confirmed in the situation of trial condition.In allusion to these problems,The Doppler signal simulator based on intelligent tablet was designed.On the basis of the introduced working principle of the hardware,this article described the process of and implementation of generating Doppler signal based on PXI6711 board and high-speed data acquisition based on PXI5122 board in detail.Test results show that Doppler signal emulator test software platform has many advantages such as the simple construction,operating and upgrading easily,and can be widely applied to the measurement of the velocity radar and the correlation test platform.

Key words: Doppler signal simulation,High velocity,Radar measurement system,PXI