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所属单位：自动化学院
发表刊物：2017 CHINESE AUTOMATION CONGRESS (CAC)
关键字：BDS receiver weight adjustment adaptive bandwidth line-of-sight dynamic carrier to noise power density ratio
摘要：With BDS receiver widely used in many fields, it faced some problems such as wide range of dynamic stress and thermal noise interference which caused by receiver racing and thermal shock of electrons in the process of tracking. Conventional receiver increase the bandwidth to expand the dynamic stress range, but it caused more thermal noise getting into the loop so that tracking accuracy decreased. In order to improve receiver tracking performance, a design scheme of the BDS receiver tracking loop based on the weight adjustment and adaptive bandwidth is proposed. This scheme utilizes line-of-sight dynamic of BDS receiver and carrier to noise power density ratio to adaptively adjust the bandwidth and the weight of the loop order so that the loop has a better noise inhibitory effect under the premise of stable tracking. The simulation results show that compared to the conventional receiver which is using fixed bandwidth and tracking loop order, this scheme can enhance the dynamic tracking performance and tracking accuracy.
是否译文：否
发表时间：2017-01-01
合写作者：Ji, Guotian,Chen, Zang,Lyu, Pin,Ma, Xiaohan
通讯作者：赖际舟