A carrier tracking technique based on a convex combination of two adaptive filters for EDL - art. no. 67954Y

	A carrier tracking technique based on a convex combination of two adaptive filters for EDL - art. no. 67954Y
	HU Shengbo ; YAO Xiujuan ; ZHAO Na
	2007
会议名称	2nd International Conference on Space Information Technology
会议日期	2007
会议地点	Wuhan, PEOPLES R CHINA
关键词	carrier tracking convex combination adaptive filter space-to-ground communications
页码	Y7954-Y7954
通讯作者	北京8701信箱
英文摘要	For planetary lander missions, the most challenging phase of the spacecraft-to-ground communications is during the entry, descent, and landing (EDL). Due to the EDL events, the extreme acceleration and jerk cause extreme Doppler dynamics on the signals received on Earth. In order to support spacecraft-to-earth communications during the EDL phase, we develop a robust and low complexity carrier frequency estimation and tracking technique that is able to operate under low SNR and highly non-stationary conditions, common to the adverse EDL scenario. The method comprises two adaptive filters supervised by a convex combiner. By simulating, it is shown that the investigated convex combination of individual adaptive predictors is able to outperform the best individual predictor.
收录类别	CPCI
会议网址	://000253704600177
会议录	Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie)
会议录出版者	Spie-Int Soc Optical Engineering
会议录出版地	BELLINGHAM
学科主题	空间技术
语种	英语
ISSN号	0277-786X
ISBN号	978-0-8194-6960-1
内容类型	会议论文
源URL	[http://ir.cssar.ac.cn/handle/122/550]
专题	国家空间科学中心_空间技术部
推荐引用方式 GB/T 7714	HU Shengbo,YAO Xiujuan,ZHAO Na. A carrier tracking technique based on a convex combination of two adaptive filters for EDL - art. no. 67954Y[C]. 见:2nd International Conference on Space Information Technology. Wuhan, PEOPLES R CHINA. 2007.://000253704600177.