Simulation Study on High Dynamic GPS Software Receiver

摘要：

To improve the capturing speed,tracking accuracy and dynamic adaptability of GPS receiver,a novel scheme of GPS software receiver was presented.First,the C/A code start of every satellite was searched through the delay-multiply configuration,then the delay and accumulation unit was put forward to pretreat the multifrequency signals.The separation and estimation of Dopplershift components were fulfilled by frequency domain analysis on post-treatment signals,therefore,the two-dimensional searching process in conventional acquisition scheme was transformed into two one-dimensional searching processes in the proposed acquisition scheme,thus improved the capturing speed.Second,multi-assisted tracking loop was proposed to estimate the frequency and phase of carrier and C/A code.Sampled data from GPS receiver and simulated high dynamic GPS signals were used for simulation experiments.Simulation results indicate the validity of the proposed software receiver scheme.

作者: Shicheng Wang Dongfang Yang Zhiguo Liu Dacheng Luo Jinsheng Zhang

会议类型: 国际会议

会议名称: Asia Simulation Conference 2008/the 7th International Conference on System Simulation and Scientific Computing(2008亚洲仿真会议/第七届系统仿真和科学计算国际会议)(ICSC2008)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-10（万方平台首次上网日期，不代表论文的发表时间）