解卷积算法性能研究  

Study on Performance of Deconvolution Method

作　　者：刘亚欢[1] 田宇[1] 李国通[1] 

机构地区：[1]中国科学院微小卫星联合重点实验室,上海200050

出　　处：《宇航学报》2010年第6期1558-1562,共5页Journal of Astronautics

基　　金：863计划<高灵敏度双模卫星导航接收机及芯片技术>(2006AA12Z301)

摘　　要：针对卫星导航应用中多路径问题,解卷积算法被提出用来补偿多径信号造成的定位误差。该算法估计出信道的冲激响应,采用信道均衡的方法补偿多径信号造成的定位误差。算法的噪声性能取决于相关峰的形状,仿真表明解卷积算法能够很好的估计信道的冲激响应,估计的噪声性能和理论推导一致。A deconvolution algorithm is proposed to compensate for multipath error in satellite navigation application.The algorithm estimates the channel response and compensates for positioning error with a channel equalization method.The noise performance depends on the shape of correlation function.Simulation shows that the deconvolution method estimates the channel response very well and estimated noise performance accords with theoretical derivation.

关 键 词：解卷积 GPS 多路径误差 

分 类 号：P228.4[天文地球—大地测量学与测量工程]