第56卷第9期 2016年9月
电讯技术
Telecommunication Engineering
doi:10.3969/j.issn.1001893x.2016.09.010
Vol. 56,No.9 September,2016
引用格式：廉昕，王元软，侯孝民，等.脉冲超宽带技术在航天测控系统中的应用[J].电讯技术，2016,56（9）：1005-1010.［LIANXin，WANGYuanqin，HOU
Xiaomin,et al. Application of impulse radio UWB technology in space TT&C system[J]. Telecommunication Engineering ,2016,56(9) :10051010. ]
脉冲超宽带技术在航天测控系统中的应用
廉昕*，王元钦，侯孝民，孟祥利
（装备学院光电装备系，北京101416）
摘要：针对当前航天测控系统安全性不足的问题，将脉冲超宽带技术应用于航天测控系统中，构建了一种新的脉冲超宽带测控体制。建立了基本的脉冲超宽带测控信号模型，对脉冲超宽带测控系统的性能和传输链路进行了分析。给出了脉冲超宽带测控系统结构框图，介绍了系统工作过程。针对并行信号捕获方法资源消耗大的不足，提出了两步并行捕获方法。分析表明，脉冲超宽带技术可用于航天测控系统中，完成测距测速和数据传输任务。脉冲超宽带测控系统可有效提高测控系统的隐蔽性和抗干扰能力，同时提高测距精度。在信号捕获方面，与并行捕获方法相比，两步并行捕获方法的硬件资源消耗得到大大降低，同时还可保证较快的捕获速度，但会产生一定的信噪比损失。
关键词：航天测控；脉冲超宽带技术；安全性；系统设计；信号捕获中图分类号：V556.6；TN914.2
文献标志码：A
文章编号：1001-893X(2016)09-1005-06
Applicationof ImpulseRadioUWBTechnologyinSpaceTT&C System
LIAN Xin, WANG Yuanqin,HOU Xiaomin, MENG Xiangli
( Department of Optical and Electrical Equipment, The Academy of Equipment, Beijing 101416, China)
Abstract: According to the security shortcoming of current space TT&C system, the impulse radio ultra-wideband(IR-UWB) technology is introduced into TT&C system,and a new IR-UWB TT&C system is es+ tablished.A basic IR-UWB TT&C signal model is built,and the performance and transmission link of the system are analyzed. The structure diagram of the IR-UWB TT&C system is given, and the whole working process of the system is introduced. According to the excessive resource consumption of the parallel signal acquisition method,a new two-step parallel acquisition method is proposed. Analysis shows that the IR-UWB technology can be used in TT&C system to accomplish range and range rate measurement and data transmission. The IR-UWB TT&C system can effectively improve the concealment performance and anti-interference ability of TT&C system,and improve the range measurement accuracy at the same time. As for signal acquisition, compared with parallel acquisition method,the hardware resource consumption of the twc-step parallel acquisition method is greatly reduced,and this method can also guarantee a fast acquisition speed,but it will bear certain signal-to-noise ratio( SNR) loss.
Key words :space TT&C;impulse radio UWB technology ;security performance ;system design ;signal acquisitior
1引言
随着航天技术的发展，世界各国在航天领域的竞争日趋激烈。航天测控系统负责对航天器进行跟踪、测量和控制，为一切航天活动提供有力的支持和保障，是航天工程系统中的重要组成部分。目前航
率收稿日期：2016-03-02；修回日期：2016-04-18*車通信作者：lianxin20032002@aliyun.com
天测控系统的安全性越来越受到重视，未来的测控系统需要在提高测量性能的同时，努力提高信息传输的隐蔽性和抗干扰性。
我国现行的航天测控系统主要有统一载波测控系统、统一扩频测控系统以及直扩/跳频混合扩频测
Received date :20160302 ; Revised date : 20160418
Corresponding author : lianxin20032002@ aliyun. com
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