太赫兹科学与电子信息学报2024，Vol.22Issue(11)：1283-1288,6.DOI:10.11805/TKYDA2023073
一种低信噪比条件下的码元速率估计算法
A symbol rate estimation algorithm under low signal-to-noise ratio
摘要
Abstract
For the problem of symbol rate estimation in non-cooperative communication,an algorithm based on empirical mode decomposition for symbol rate estimation is proposed.The algorithm performs a low-order Empirical Mode Decomposition(EMD)on the instantaneous amplitude of the signal to find the intrinsic mode components that contain information about the symbol rate;then,it estimates the symbol rate through spectral line detection.This algorithm can effectively reduce the impact of interference on estimation performance by separating frequencies,thereby improving estimation accuracy.Simulation results show that the algorithm can obtain an estimate of the symbol rate directly from the frequency band signal under low signal-to-noise ratio conditions.关键词
参数估计/经验模态分解(EMD)/谱线检测Key words
parameter estimation/Empirical Mode Decomposition(EMD)/spectral line detection分类
信息技术与安全科学引用本文复制引用
王勤民,赵津津,董丽元,李明媚..一种低信噪比条件下的码元速率估计算法[J].太赫兹科学与电子信息学报,2024,22(11):1283-1288,6.基金项目
国家自然科学基金资助项目(61871405) （61871405）
博士创新基金资助项目(3004/080401) （3004/080401）
