基于提前预测的高动态环路跟踪算法.pdfVIP

High dynamic trackingalgorithm based on prediction 1 Haowei Xu , Baowang Lian, ChengkaiTang, Jianing Wang 1. Northwestern Polytechnical University, the School of Electronics and Information, China, Xi’an 1. xuhaoweiself@ Abstract: Global Navigation Satellites System (GNSS) has been widely used worldwide. But in a complex environment, performance of the receiver is always limited. Andthe relative motion of satellite navigation signals and weak and the receiver is an important factor affecting the normal operation of the receiver.Receiver tracking algorithm determines the sensitivity of the receiver tracking, but also directly determines the output of the receiver can correctly locate information. To solve the above problems, in order to improve the sensitivity and dynamic tracking of the receiver, in this paper the various factors that affect the performance of the loop are analyzed, and propose a new method to predict the loop parameter instantaneously. The simulation and experimental results show that the proposed algorithm compared to conventional tracking algorithm effectively improves receiver sensitivity and dynamic. Keywords:GPS; High dynamic; High sensitivity; Bayesian prediction; Tracking 基于提前预测的高动态环路跟踪算法 1 1 1 1 徐昊玮 ，廉保旺 ，唐成凯 ，王嘉宁 1．西北工业大学，西安，中国，710072 1. xuhaoweiself@ 【摘要】全球卫星定位系统（GNSS ）已经在全球得到了广泛的应用，但是在复杂的环境下，接 收机的性能始终受到限制，其中导航信号微弱和卫星与接收机之间的相对运动是影响接收机正常 工作的重要因素。接收机中的跟踪算法决定着接收机的跟踪灵敏度，同时也直接决定着接收机能 否正确输出定位信息。为了解决上述问题、提高接收机的跟踪灵敏度和动态性，本文在传统的跟 踪环路的基础上，深入分析了影响环路性能的各个因素