低信噪比条件下BOC信号的快捕算法研究

杨东凯; 刘宪阳

您当前的位置：

首页 >

文章列表页 >

低信噪比条件下BOC信号的快捕算法研究

更新时间：2026-09-14

- 低信噪比条件下BOC信号的快捕算法研究
- 低信噪比条件下BOC信号的快捕算法研究
- Issue 3, (2008)
- 作者机构：
  
  北京航空航天大学电子信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
移动端阅览
杨东凯, 刘宪阳. 低信噪比条件下BOC信号的快捕算法研究[J]. 2008, (3).
DOI：

杨东凯, 刘宪阳. 低信噪比条件下BOC信号的快捕算法研究[J]. 2008, (3). DOI：

摘要

针对全球导航卫星系统中的二进制偏置载波(BOC)

介绍了其生成原理

分析了其自相关函数的特点.研究了常用的BPSK-L IKE单边带和双边带捕获算法及其优缺点

结合基于快速傅立叶变换(FFT)的码并行处理结构

利用BOC信号自相关函数以及BOC信号和伪随机噪声码(PRN)序列的互相关函数两者的差值作为捕获算法的输出

给出了一种可以消除自相关函数的边峰带来的模糊性的捕获算法.仿真结果表明:该算法无能量损失

可接受的最低信噪比低于其它算法2 dB

且其复杂度低.

Abstract

The principle of the binary offset carrier(BOC) modulation in GNSS is introduced and its autocorrelation function is analyzed.The common binary phase shift key(BPSK)-LIKE single/double bands acquisition algorithms and also their merits and demerits are studied.Combined with fast Fourier transform(FFT) based code parallel processing architecture

the difference between BOC autocorrelation function and the cross-correlation function of BOC and pseudo-random noise(PRN) is applied as the output of acquisition algorithm.The algorithm which can restrain the ambiguity resulted from the BOC autocorrelation function is given.The simulation results show that

the given algorithm has no energy loss and less computation complexity

and its acceptable minimum signal noise ratio(SNR) is 2 dB smaller than that of other algorithms.

关键词

Keywords

references

Views

317

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Review of Receiver Autonomous Integrity Monitoring in Aircraft Approach Phase

Hopkinson Bar Pulse Width Extension Test Method Based on Polyurethane Wave Shaper

Research Progress on Machine Learning⁃Based Structural Design and Performance Characterization of Composites

PEG⁃Like Polymers Based on Low Molecular Weight PEI as Gene Vectors

Adaptive Shock Wave Overpressure Sensing for Dynamic Explosion Testing

Related Author

刘磊磊

张鹏飞

马振华

何印

冀云彪

Related Institution

中北大学航空宇航学院

⁰