Combining FFT and Circular Convolution Method for High Dynamic GPS Signal Acquisition

摘要：

GPS signal acquisition is very crucial in GPS receiver. The circular convolution and FFT method are often used to achieve GPS signal acquisition in time domain and frequency domain, respectively 1. FFT acquisition method is usually adopted in high dynamic GPS receiver because of its faster process speed than circular convolution. But FFT acquisition spent more time to get GPS signal in order to reach the higher requirement of position precision, when the carrier has larger dynamic range. This paper discusses a new method combined FFT and circular convolution. This new method can reduce the cost time of acquisition.

关键词： GPS FFT circular convolution

作者: Li Yang Xi XiaoLi

作者单位: School of Automation and Information Engineering,Xian University of Technology,Xian,Shaanxi,710048

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）