Abstract: Aim To discuss the importance of establishing modeled radar digital signal processing system. Methods System bus was employed for system manage- ment; local bus was utilized for high-speed data transfer. Results A scheme for a VXlbus-based system being developed was presented. A VXIbus message-based high-speed radar DSP module was developed. Conclusion A standardbus- based modeled radar digital signal processing system has an advantage of reducing the amount of work, time and cost for multi- system and new-type radar digital signal processing system development, promoting system reliability, and enhancing system electromagnetic compatibility .