| 频率无偏估计的有限冲激响应自适应陷波器方法研究 |
| |
| 引用本文： | 李明,涂亚庆,万平,肖玮,陈鹏. 频率无偏估计的有限冲激响应自适应陷波器方法研究[J]. 信号处理, 2021, 37(4): 596-602. DOI: 10.16798/j.issn.1003-0530.2021.04.013 |
| |
| 作者姓名： | 李明 涂亚庆 万平 肖玮 陈鹏 |
| |
| 作者单位： | 陆军勤务学院军事物流系 |
| |
| 基金项目： | 国家自然科学基金(61601493;61871402);国家重点研发计划(2018YFB2003900);重庆市自然科学基金(CSTC2019jcyj-msxmX0245) |
| |
| 摘 要： | 针对现有自适应陷波器频率估计方法结构复杂、抗噪性弱、结果有偏的问题,提出频率无偏估计的有限冲激响应自适应陷波器方法.该方法首先以结构较为简单的FIR自适应陷波器为基础,在分析其误差函数性能的基础上,提出频率估计的迭代递推计算式,提升频率估计的收敛性能;其次,对该频率估计迭代递推计算式进行偏差分析,在分析出偏差产生的原因...
|
| 关 键 词： | 频率无偏估计 有限冲激响应 自适应陷波器 性能分析 |
| 收稿时间： | 2020-09-07 |
Unbiased Frequency Estimation based on FIR Adaptive Notch Filter |
| |
| Affiliation: | Department of Military Logistics, Army Logistics University of PLA |
| |
| Abstract: | In order to solve the problems that adaptive notch filter(ANF) based frequency estimation method is complex, biased, and unstable under noise condition, a new ANF based unbiased frequency estimation method is proposed. Firstly, based on simple structure of FIR adaptive notch filter, the iterative recursive formula of frequency estimation is proposed to improve the convergence performance after the analysis of error function performance; Secondly, the bias analysis of the iterative recurrence formula of frequency estimation is carried out to confirm the deviation compensation item, which should be useful for obtaining unbiased frequency estimation results. Finally, the proposed method is calculated and analyzed to verify the effectiveness of the proposed FIR frequency estimation method in terms of convergence, anti-noise performance and unbiasedness. |
| |
| Keywords: | |
|
| 点击此处可从《信号处理》浏览原始摘要信息 |
|
点击此处可从《信号处理》下载免费的PDF全文 |
|
