华中科技大学学报（自然科学版）2025，Vol.53Issue(3)：70-77,8.DOI:10.13245/j.hust.240367
压制干扰对短周期序列扩频通信解调性能的影响分析
Performance analysis of suppressing jamming on the demodulation perfor-mance of spread spectrum communication with short period sequences
摘要
Abstract
The influence of suppressing jamming on the demodulation performance of the short period sequence spread spectrum communication(SPS-SSC)system was analyzed.The mathematical expression of the incoherent demodulation of SPS-SSC signals under suppressing jamming was derived.On this basis,the bit error ratio(BER)statistical model based on maximum matching metric decision criterion was proposed to quantitatively analyze of the BER performance of SPS-SSC systems under suppressing jamming.The simulation results show that the proposed BER statistical model in this paper has higher accuracy in analyzing the BER performance of SPS-SSC system compared with conventional long period sequence(LPS)based BER model,and is consistent with the conventional LPS based BER model in analyzing LPS-SSC systems.Simulation results also verify that suppressing jamming obtains optimal jamming performance when the center frequency of the jamming signal equals to the carrier frequency of the desired signal.关键词
压制干扰/短周期序列扩频通信/非相干解扩/最大匹配度量判决准则/误码率/信干比Key words
suppressing jamming/short period sequences spread spectrum communication/noncoherent despreading/maximum matching metric decision criterion/bit error rate/signal-to-jamming ratio分类
电子信息工程引用本文复制引用
卢洽然,何方敏,王泽,杨忠,张雲硕,李亚星..压制干扰对短周期序列扩频通信解调性能的影响分析[J].华中科技大学学报（自然科学版）,2025,53(3):70-77,8.基金项目
国家重点研发计划首席科学家负责制试点项目(2021YFF1500100) （2021YFF1500100）
国家自然科学基金资助项目(52177012) （52177012）
国家杰出青年科学基金资助项目(52025072) （52025072）
国防科技重点实验室基金资助项目(614221722051301) （614221722051301）
湖北省自然科学基金资助项目(2021BIDS007). （2021BIDS007）
