摘要
针对深空测距信噪比低,测距精度差等问题,提出了再生伪码测距的思想;通过对再生伪码测距的基本原理的分析,介绍了再生伪码测距的优势;测距码方面主要分析了测距复合码的发展历程、组合方式,针对权重平衡Tausworthe码中的T2B以及T4B码的特点进行了分析,对测距码的捕获技术和原理进行了概述;同时,分析了再生伪码测距的最新研究成果;最后,针对再生伪码测距中子码序列捕获的最大值搜索算法以及测距信号传输过程中与遥测遥控的兼容性问题进行了表述,为接下来的研究提供了方向。
Aiming at the problem of low SNR and poor accuracy of ranging,the idea of regenerative PN ranging is proposed. Based on the analysis of the basic principle of regenerative PN ranging, the advantages of regenerative pseudo-code ranging are introduced. In this paper,the development process and combination of distance measurement code are analyzed,and the characteristics of T2 B and T4 B in Tausworthe code are analyzed,and the capture technique and principle of distance code are summarized.At the same time,the latest research results of regenerative PN ranging are analyzed. Finally,the maximum value search algorithm for regenerative PN ranging neutron code sequence acquisition and the compatibility problem of telemetry remote control during transmission of ranging signal are presented,which provides the direction for the following research.
出处
《兵器装备工程学报》
CAS
2017年第7期107-110,共4页
Journal of Ordnance Equipment Engineering
关键词
再生伪码测距
测距码
捕获
regenerative PN ranging
ranging code
acquisition
