深空网伪码测距技术研究

Research on Pseudo-noise Ranging Technologies for DSN Network

介绍了NASA深空网所采用的伪码测距的基本原理,讨论了深空航天器应答机相干转发或再生所采用伪码序列的两种形式,对再生测距系统中的具体序列产生和相关、以及用中国剩余定理解算距离的实现方法和技术途径进行了分析,并计算分析了测距精度、捕获时间等系统关键指标,以对我国深空网的建设提供技术理论参考.

This paper introduces the principle of pseudo-noise ranging adopted in Deep Space Network （ DSN ） of NASA. Two pseudo-noise signal structures used by turn-around or regenerative spacecraft transponder are also discussed. The production and correlation of pseudo-noise signals and the implementation of range estimate using the Chinese Remainder Theorem are discussed. It also calculates and analyzes the ranging accuracy and acquisition time. It aims to provide reference to the construction of China＇s deep space network.