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一种GPS L1C/A与L2C双频信号的捕获算法 被引量：1

GPS Acquisition of L1C/A and L2C Dual-frequency Signals
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摘要 为提高双频信号的捕获速度,通过对L1C/A码进行捕获后,利用L1与L2波段之间频率关系导频捕获L2信号频率,利用L1C/A码对应20个CM码起始码片的可能点捕获到L2C码。验证表明该算法能够实现L1C/A和L2C信号的快速捕获,大大减小了对L2波段的频率搜索重复性和捕获L2C码的运算量,能够实现双频信号的快速捕获,对精度较高的双频接收机的研究有一定参考价值。 In order to raise the speed for GPS acquisiton of dual-frequency signals,after the acquision of L1C/A code,the L2 signal frequency is acquired by the relationship of the L1 with L2 carrier and then the L2C code origination is acquired by utilizing the C/A code in corresponding to 20 possible points of CM code.Simulation shows that the acquisition algorithm could quickly realize the acquisition of L1C/A and L2C,and greatly reduce the space of frequency search and the burden of computation.The acquisition algorithm could serve as a reference for the research of dual-frequency receiver.
作者 王忠 刘光斌
机构地区 第二炮兵工程学院
出处 《通信技术》 2011年第1期27-28,31,共3页 Communications Technology
关键词 L1C/A L2C 双频信号 导频捕获 L1C/A L2C dual-frequency signal pilot acquisition
分类号 TN965.5 [电子电信—信号与信息处理]
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共引文献10

同被引文献14

  • 1曾庆喜,唐琳琳,王庆,陈小惠.基于分段FFT的GPS L1/L2C信号快速捕获算法[J].中国惯性技术学报,2013,21(5):640-645. 被引量：6
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