电讯技术2016，Vol.56Issue(9)：1005-1010,6.DOI:10.3969/j.issn.1001-893x.2016.09.010
脉冲超宽带技术在航天测控系统中的应用
Application of Impulse Radio UWB Technology in Space TT & C System
摘要
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 two-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.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Key words
space TT&C/impulse radio UWB technology/security performance/system design/signal acquisition分类
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廉昕,王元钦,侯孝民,孟祥利..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):1005-1010,6.
