学术
摘 要:
总结了载人航天USB测控系统的综合化、高可靠性、高测轨精度、抗组合干扰、数字化、大动态控制、目标快速捕获、极化分集接收等关键技术，以及为解决这些关键而采取的技术措施，包括：统一载波信号设计，“五合一”数字载波环，数字测速和测距，随扫斜率判决，高线性调制／解调，FM极化合成跟踪等。经过我国载人航天工程实践的验证，USB测控系统是成功的，其综合性能达到了当时的国际先进水平。[著者文摘]
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文章出处:
《宇航学报》-2005年26卷6期 -743-747页
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文献标识码:
A
文章编号:
1000-1328（2005）06-0743-05
Key Technologies of the USB TT＆C System for Manned Space Flight
LIU Jia-xing （The Electronic 10^th Institute of CETC, Chengdu, Sichuan 610036, China）
Abstract:
This paper summarizes the key technologies of the Unified S-band （USB） TT＆C eommtmieation system for manned space flight, including integration, high rehability, high precision orbit determination, anti-combination interference, digitalization, high dynamic control, fast acquisition of target, polarization diversity reception etc.. It also proposes solutions to implement these technologies, including design of unified carrier signal, “Five-in-one” Digital carrier PLL, digital measurement of range and rage rate, scan slope decision method, high near modulation/demodulation, FM polarization synthesization tracking etc.. After having been demonstrated in China manned space engineering, the USB TT＆C commtmication system has succeeded, its overall performance reached the advanced world level of the time.[著者文摘]
Key words:
Manned space flight; Unified S-Band （USB） TT＆C system; Communication
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