A BOC signal has been widely used in the Global Navigation Satellite System (GNSS). Although the BOC signal has many advantages, the autocorrelation function (ACF) of the BOC signal has lots of peaks, which makes signal acquisition difficult. This paper proposes a similar enfoldment acquisition (SEA) algorithm, which can be applied to sin-BOC and cos-BOC signals, with even and odd modulation orders. The SEA algorithm utilizes the similarity between the main peak and the secondary peak to construct a new ACF to eliminate the ambiguity of the BOC signal. This paper simulates the acquisition performance of the SEA algorithm, Martin algorithm, and SCPC algorithm, while the simulation result shows that the SEA algorithm is superior to the Martin algorithm and SCPC algorithm. Since the SEA algorithm does not need filters or auxiliary signals, its complexity is lower than that of the Martin algorithm and SCPC algorithm.

中文翻译：

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基于相似包络的BOC信号采集算法

BOC信号已在全球导航卫星系统（GNSS）中得到广泛使用。尽管BOC信号具有许多优点，但BOC信号的自相关函数（ACF）具有很多峰值，这使信号采集变得困难。本文提出了一种相似的捕获捕获（SEA）算法，该算法可以应用于具有偶数和奇数调制阶数的sin-BOC和cos-BOC信号。SEA算法利用主峰和次峰之间的相似性来构建新的ACF，以消除BOC信号的歧义。对SEA算法，Martin算法和SCPC算法的捕获性能进行了仿真，仿真结果表明，SEA算法优于Martin算法和SCPC算法。由于SEA算法不需要滤波器或辅助信号，