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Galileo接收机多径抑制方法的改进
包宋建
0
(重庆文理学院 电子电气工程学院, 重庆 402160)
摘要:
旁瓣是影响跟踪稳定性的重要误差来源。为解决这一问题,提出 了 一种改进旁瓣消除技术,与传统的旁瓣消除技术相比其在稳定性上具有一定的优势,有效改 善了跟踪的稳定性 。针对多径对GNSS系统影响这一问题,将改进的旁瓣消除技术与窄相关技术(NC)、高分辨 率相关技术(HRC)和早迟坡度技术(ELS) 3种多径抑制技术相结合,仿真结果证明改进后 的多径抑制技术能有效提高跟踪的精度和稳定性。
关键词:  全球导航卫星系统  多径抑制  旁瓣消除  跟踪精度  跟踪稳定 性
DOI:
基金项目:
Improvement of Multipath Mitigation Method for Galileo Receivers
BAO Song-jian
(College of Electronic and Electrical Engineering,Chongqing University of Arts and Sciences,Chongqing 402160,China)
Abstract:
Side-lobe is one of the most important error sources influencing the tracking r eliability.In order to solve this problem, an improved side-lobes cancellation technology is proposed. Compared with traditional technology, this method has good reliability. For the propose o f minimizing the influence of multipath on the GNSS(Global Navigation Satellite System), the improved side-lobes cancellation technology is combined with Narrow Correlator(NC) technology,High R esolution Correlator(HRC) technology and Early Late Slop(ELS) technology.The simulations prove that better tracking reliability and accuracy can be achieved with the improved method.
Key words:  GNSS  multipath mitigation  side-lobes mitigation  tra cking accuracy  tracking reliability