A fast algorithm for long code direct acquisition

机译：长代码直接获取的快速算法

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In GPS (Global Position System), direct acquisition of the GPS P(Y)-code is a two-dimension lengthy searching process in time and frequency dimension. CCPAZP-FFT (Circular Correlation by Partition And Zero Padding) uses FFT to achieve parallel correlation and frequency searching. In this way acquisition can be achieved very fast as it transfers two-dimensional search into parallel one-dimensional search. However, correlation points are still too much and Computation is heavy. This paper proposes an improvement algorithm of combination of CCPAZP-FFT and XFAST. This way Compares to CCPAZP-FFT is reduced by two thirds of the computation in order to achieve rapid long code acquisition.

机译：在GPS（全球定位系统）中，直接获取GPS P（Y）码是在时间和频率维度上的二维冗长的搜索过程。 CCPAZP-FFT（通过分区和零填充进行循环相关）使用FFT实现并行相关和频率搜索。这样，由于将二维搜索转换为并行一维搜索，因此可以非常快速地实现采集。但是，相关点仍然太多，计算量很大。提出了一种结合CCPAZP-FFT和XFAST的改进算法。这样，与CCPAZP相比，FFT减少了三分之二的计算量，以实现快速的长码获取。

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来源
《2013 International Workshop on Microwave and Millimeter Wave Circuits and System Technology》|2013年|419-423|共5页
会议地点 Emeishan(CN)
作者
Liang Haoxiang; Zhang Jichao;
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作者单位

Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, Chinac;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
FFT; GPS; P-code; XFAST; long code direct acquisition;

机译：FFT; GPS; P码; XFAST;长码直接采集;;

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1. An Iterative Algorithm and Low Complexity Hardware Architecture for Fast Acquisition of Long PN Codes in UWB Systems [J] . ON WA YEUNG, KEITH M. CHUGG Journal of VLSI signal processing systems . 2006,第1期

机译：UWB系统中快速捕获长PN码的迭代算法和低复杂度硬件体系结构
2. Direct P-code acquisition algorithm based on bidirectional overlap technique [J] . Ying Xu, Lijuan Xu, Hong Yuan, Chinese Journal of Systems Engineering and Electronics . 2014,第4期

机译：基于双向重叠技术的直接P码获取算法
3. Direct P-code acquisition algorithm based on bidirectional overlap technique [J] . Ying Xu, Lijuan Xu, Hong Yuan, 系统工程与电子技术（英文版） . 2014,第004期

机译：基于双向重叠技术的直接P代码采集算法
4. A fast algorithm for long code direct acquisition [C] . Liang Haoxiang, Zhang Jichao International Workshop on Microwave and Millimeter Wave Circuits and System Technology . 2013

机译：一种快速算法，即长代码直接采集
5. On designs and fast decoding algorithms of space-time codes and group codes. [D] . Niyomsataya, Teresan. 2009

机译：关于时空码和组码的设计和快速解码算法。
6. A Dual-Channel Acquisition Method Based on Extended Replica Folding Algorithm for Long Pseudo-Noise Code in Inter-Satellite Links [O] . Hongbo Zhao, Yuying Chen, Wenquan Feng, 2018

机译：卫星间链路中长伪噪声码的基于扩展副本折叠算法的双通道捕获方法
7. An Iterative Algorithm and Low Complexity Hardware Architecture for Fast Acquisition of Long PN Codes in UWB Systems∗ [O] . On Wa, Yeung, Keith M. Chugg 2014

机译：用于UWB系统中长pN码快速捕获的迭代算法和低复杂度硬件架构*

A fast algorithm for long code direct acquisition

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