基于DSP技术的两种陆基无线电导航系统机载设备的改装  

Application of DSP Techniques in Airborne Improvement of Ground Based Radio Navigation Systems

作　　者：许进[1] 赵修斌[1] 戴传金[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《导航》2006年第2期106-108,共3页

摘　　要：为了更好的评估陆基无线电导航系统机载设备的性能，提出了应用DSP技术改装部分飞行检测系统的观点．在飞行检验陆基无线电导航设备的过程中，传统的飞行检测系统均是用模拟电路来实现的，但受温度和湿度变化及飞行抖动的影响容易产生测量误差，为了补偿这些误差就需要在飞行过程中进行定标．而基于DSP技术的飞行检测系统将不需要这一繁琐的过程．该系统最为关键的模拟处理设备就是一个模，数（A／D）转换器．该系统两种特别的用途：（1）ILS航道偏移量的测定；（2）VOR系统方位角的测定．此外，应用DSP技术改装的飞行检测系统还比较经济适用．This paper discusses the application of DSP techniques in a portable flight inspection system for the airborne evaluation of ground-based radio navigational aids. Traditional flight inspection systems use analog circuitry and thus require in-flight calibration between measurements to compensate for variations caused by temperature and humidity changes, and vibration. The need for such calibration has been eliminated as a result of the work addressed in this paper, since by relying on DSP techniques it is possible to reduce the key analog processing hardware to a single A/D converter. Two specific applications are presented here： 1） course displacement determination for the immanent landing system （ILS）, and 2） azimuth angle determination for the VOR. The DSP techniques presented here were implemented in a flight inspection system which is in commercial use.

关 键 词：DSP技术 无线电导航系统 飞行检测 机载设备 

分 类 号：TN965[电子电信—信号与信息处理]