Acquisition algorithm for BOC signals in high dynamic environment

Yi PAN; Tianqi ZHANG; Gang ZHANG; Baoze MA

doi:10.11959/j.issn.1000-436x.2019145

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Acquisition algorithm for BOC signals in high dynamic environment

Papers | 更新时间：2024-06-05

- Acquisition algorithm for BOC signals in high dynamic environment
- Journal on Communications Vol. 40, Issue 6, Pages: 82-89(2019)
- 作者机构：
  
  重庆邮电大学通信与信息工程学院，重庆 400065
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61671095);The National Natural Science Foundation of China(61702065);The National Natural Science Foundation of China(61701067);The National Natural Science Foundation of China(61771085);The Project of Key Laboratory of Signal and Information Processing of Chongqing(CSTC2009CA2003);Chongqing Graduate Research and Innovation Project(CYS17219);The Research Project of Chongqing Educational Commission(KJ1600427);The Research Project of Chongqing Educational Commission(KJ1600429)
- DOI：10.11959/j.issn.1000-436x.2019145
  CLC： TN911
- Online First：2019-06，
  
  Published：25 June 2019
- 稿件说明：
移动端阅览
Yi PAN, Tianqi ZHANG, Gang ZHANG, et al. Acquisition algorithm for BOC signals in high dynamic environment[J]. Journal on Communications, 2019, 40(6): 82-89.
DOI：

Yi PAN, Tianqi ZHANG, Gang ZHANG, et al. Acquisition algorithm for BOC signals in high dynamic environment[J]. Journal on Communications, 2019, 40(6): 82-89. DOI： 10.11959/j.issn.1000-436x.2019145.

摘要

针对传统的捕获算法无法实现高动态环境下二进制偏移载波（BOC）信号同步问题，设计了一种分数阶傅里叶变换（FRFT）与离散多项式相位变换（DPT）相结合的捕获算法。该算法首先根据定阶运算得到接收信号的动态阶数来判定是否需要进行降阶处理，然后通过对FRFT捕获算法输出的谱峰值搜索得到动态参数和码相位的估计值来完成捕获。理论分析和仿真结果表明，所提算法在原有FRFT捕获算法的基础上消除了二阶多普勒变化率的影响，能够成功捕获到高动态 BOC 信号。与其他算法相比，所提算法进一步增强了整个捕获结构的动态适应能力和抗噪性能，并且在检测概率和捕获时间方面具有优越的性能。

Abstract

As the synchronization of binary offset carrier (BOC) signals couldn’t be realized in high dynamic environment by traditional acquisition algorithms

an acquisition algorithm based on fractional Fourier transform (FRFT) and discrete polynomial-phase transform (DPT) was proposed.Firstly

the algorithm determined how to process the received signal according to the dynamic order obtained by the order operation.And then the acquisition was achieved by searching the spectral peak of the FRFT algorithm to obtain the estimation of dynamic parameters and code phase.Theoretical analysis and simulations show that the proposed algorithm eliminates the influence of second-order doppler shift rate based on original FRFT acquisition algorithm

which can successfully capture high dynamic BOC signals.The proposed algorithm further enhances the dynamic adaptability and anti-noise performance and has superior performance in detection probability and acquisition time in comparison with other algorithms.

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references

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