摘要： 在分析某小型平流层验证飞艇实际应用的基础上，介绍了适合该艇的INS/GPS组合导航系统基本原理。结合高性能定点DSP TMS320F2812和双口RAM CY7C028的特点，设计了以双DSP芯片为计算核心的导航计算机，给出了组合导航系统的硬件框图与软件流程图。飞行试验结果显示该系统具有良好的实时性和满足设计要求的测量精度，为平流层飞艇组合导航系统的设计提供了一定的理论基础。

关键词: 飞艇, 双DSP, 双口RAM, CPLD, 组合导航系统

Abstract: Based on the practical application of the minitype stratosphere verifying airship, the basic principle of INS/GPS integrated navigation system adapted to this airship is introduced. Integrating with the characteristics of high performance fix-point DSP TMS320F2812 and double interface RAM CY7C028, a navigation computer used as the calculated is designed while the hardware frame and software flow chart of the integrated navigation system are given. The results of flying experiment suggest that this system has good real-time property and the measuring accuracy meets the design requirements. It supplies some theory base for the design of integrated navigation system of stratosphere airship.

Key words: airship, double DSP, double interface RAM, CPLD, integrated navigation system

中图分类号: 

• TP39