摘要
目前P码的捕获通常是利用C/A码来完成.为保证扩频信号具有更高的扩频增益、更强的抗模仿和抗欺骗能力,必须实现P码的直接捕获,而不依赖于其他短码来捕获.本文从研究信号直接捕获算法角度出发,提出了一种新的P码快速直接捕获算法.仿真结果表明:该算法能够达到有效的P码捕获.
P-code is usually acquired depending on C/A code. But, P-code direct acquisition should be implemented in GPS receiver in order to achieve the higher spectrum-spread gain, the better anti-deception and anti-spoofing , without needing to rely on the other short-code to capture. A new P-code direct acquisition algorithm is proposed by studying direct signal acquisition algorithms. The simulation result shows that the algorithm is effective.
出处
《沈阳理工大学学报》
CAS
2006年第6期11-13,共3页
Journal of Shenyang Ligong University
关键词
GPS
P码
直接捕获
XFAST
均值
GPS
P-Code
direct acquisition
extended average value replica folding acquisition search technique（XFAST）
average value
