摘要： 为了满足捷联惯导系统应用的需要，设计了基于DSP技术和CPLD技术的导航计算机。整个系统是以数字信号处理单片机TMS320VC33为核心的单CPU结构的计算机系统，CPLD的设计主要是实现对加速度计和里程表的输出信号的计数及实现DSP与外部的通信。整个系统结构简单、体积小、功耗低且能满足系统实时性的要求。

关键词: 捷联惯导系统, 导航计算机, 数字信号处理器, 复杂可编程逻辑器件

Abstract: In order to meet the requirement of SINS, a navigation computer based on the technology of DSP and CPLD is developed. It is a computer control system with the high speed DSP single-chip computer TMS320VC33. The count functions of the signal of accelerometers and the signal of odometer have been designed with CPLD, and the communication functions have been achieved with peripheral equipment. Thus, this system is provided with some characteristics, such as simple structure, lesser size and lower power consumption, and enhances the real-time performance of the system.

Key words: SINS, Navigation computer, DSP, CPLD