BOC信号解模糊通用模型的构建与应用

摘要

Since the existing side-peaks cancellation (SC) techniques is still scarce of uniform theoretical frame and analytical method, a new SC analytic design general framework is proposed in this paper.In this framework, the existing techniques based on the combination of correlation functions for Binary Offset Carrier (BOC) signals can be unified, and more importantly, it can provide an analytical tool for SC.This framework is implemented to present a generalized spreading symbol waveform, and create the combinations of cross-correlation function between the BOC signal and the local signal in receiver.And it is confirmed with the mathematical theory based on practical methods.Finally,an unambiguous tracking method based on a combined correlation function for BOC signals is also proposed.Theoretical analysis and simulation results indicate that the proposed method can remove the side-peaks of BOC autocorrelation function completely while maintaining the shape of main peak, and it exhibits an average mula'path performance.%针对现有边峰消除方法缺乏理论分析模型的问题,提出了一种新的边峰消除理论分析通用模型,将现有的各种基于相关函数组合的二进制偏移载波(BOC)信号无模糊处理方法统一起来,同时为算法的设计提供了有力的数学工具.该模型通过建立泛化的扩频符号波形,构建接收BOC信号与本地辅助信号的互相关函数.基于现有方法对该模型进行了数学证明.并在此模型的基础上提出了一种新的基于合成相关函数的BOC信号无模糊跟踪方法.理论分析与仿真结果表明,新的无模糊跟踪方法能够在保持BOC自相关函数主峰宽度的前提下,完全消除其边峰,实现无模糊跟踪,同时该方法具有较好的多径抑制能力.