A Synchronization Acquisition Algorithm Based on the Frequency Hopping Pulses Combining  

作　　者：She Honghan Cheng Yufan Zhang Wenzihan Zhang Yaohui Zhao Yuheng Shen Haoran Mou Ying 

机构地区：[1]National Key Laboratory of Wireless Communications,UESTC,Chengdu 611731,China

出　　处：《China Communications》2024年第4期74-87,共14页中国通信（英文版）

基　　金：supported in part by the National Natural Science Foundation of China (NSFC) under Grants 62131005, 62071096;in part by the Fundamental Research Funds for the Central Universities under Grant 2242022k60006;in part by the National NSFC under Grant U19B2014;in part by the Natural Science Foundation of Sichuan under Grant 2022NSFSC0495

摘　　要：As modern electromagnetic environments are more and more complex,the anti-interference performance of the synchronization acquisition is becoming vital in wireless communications.With the rapid development of the digital signal processing technologies,some synchronization acquisition algorithms for hybrid direct-sequence(DS)/frequency hopping(FH)spread spectrum communications have been proposed.However,these algorithms do not focus on the analysis and the design of the synchronization acquisition under typical interferences.In this paper,a synchronization acquisition algorithm based on the frequency hopping pulses combining(FHPC)is proposed.Specifically,the proposed algorithm is composed of two modules:an adaptive interference suppression(IS)module and an adaptive combining decision module.The adaptive IS module mitigates the effect of the interfered samples in the time-domain or the frequencydomain,and the adaptive combining decision module can utilize each frequency hopping pulse to construct an anti-interference decision metric and generate an adaptive acquisition decision threshold to complete the acquisition.Theory and simulation demonstrate that the proposed algorithm significantly enhances the antiinterference and anti-noise performances of the synchronization acquisition for hybrid DS/FH communications.

关 键 词：adaptive anti-interference frequency hopping synchronization acquisition 

分 类 号：TN914.41[电子电信—通信与信息系统]