本文介绍了基于niosII的测控中频处理系统的设计方法,讨论了系统的设计框图和中频处理相关算法的实现,分析了使用软件无线电技术如何使测控中频处理设备更加软件可重构化。最后对所设计的处理板进行了软件和硬件测试和仿真,所设计的中频处理板可以完成现有遥测中频数据处理,包括测速、测距以及遥测数据解调等功能,中频数字化各单元的性能指标都达到了设计要求。 This paper introduces the design method of niosII-based measurement and control IF processing system, discusses the design of the system block diagram and the implementation of the IF processing algorithm, and analyzes how to make the measurement and control IF processing equipment more software reconfigurable by using the software radio technology. Finally, the designed processing board is tested and simulated by software and hardware. The designed IF processing board can complete the functions of the existing telemetry intermediate frequency data processing, including speed measurement, ranging and telemetry data demodulation. The performance of each unit of IF digitalization Indicators have reached the design requirements.