This paper presents a new modified Single Block Zero‐Padding (mSBZP) Partial Correlation Method (PCM) Parallel Code Search (PCS) algorithm for effective acquisition of weak GNSS tiered signal using coherent processing of its secondary code (SC) component. Two problems are discussed: acquisition of primary codes with a longer period using FFT blocks of limited length, and the utilization of PCS in the presence of SC bit transition.

中文翻译：

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GNSS分层信号获取的新型部分相关方法算法

本文提出了一种新的改进的单块零填充（mSBZP）局部相关方法（PCM）并行代码搜索（PCS）算法，该算法可通过对辅助代码（SC）分量进行相干处理来有效地获取弱GNSS分层信号。讨论了两个问题：使用有限长度的FFT块获取较长周期的主代码，以及在SC位转换的情况下使用PCS。