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中文摘要：
针对多径信号引起跟踪环多径误差的问题，基于经典接收机跟踪环结构，从鉴别函数分析着手，对BOC（2n，n）信号的码多径误差解析式进行推导，给出了多径误差与多径参数的变化关系，并分析了前置滤波带宽对BOC（2n，n）信号的多径误差包络的影响，Matlab仿真结果验证了理论推导的正确性，证明了窄相关技术能提供良好的码多径误差抑制性能，BOC信号码速率越高，抗多径性能越好，并且增加前置滤波带宽能有效改善信号抗多径性能。
英文摘要：
In view of the error aroused by the multipath signal in the code tracking loop, based on a classic receiver tracking loop structure, the code multipath expressions for BOC（2n,n） signals is deduced by analyzing the code discriminator func- tion, the relation between the multipath error and multipath parameters is demonstrated, and the influence of different front- end bandwidth on the multipath envelop is studied. The correctness of the theoretical deduction is proved by Matlab simula tion results, the narrow correlator can provide a favorable multipath mitigation performance and the mitigation performance becomes better when the code rate is increased. Additionally, the performance of multipath inhibition can be improved with larger front-end bandwidth.
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