| 任 杰,杨双龙,王俊翔,邵春莉.迭代 ICA 与 LEVKOV 联合的瞬态
响应工频干扰抑制方法[J].电子测量与仪器学报,2021,35(12):37-44 |
| 迭代 ICA 与 LEVKOV 联合的瞬态
响应工频干扰抑制方法 |
| Anti-power interference method of combining iterative ICAand LEVKOV for transient response |
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| DOI： |
| 中文关键词: 传感器瞬态响应 工频干扰 迭代 ICA 法 LEVKOV 法 频率游动 |
| 英文关键词:sensor transient response power interference iterative ICA method LEVKOV method frequency swinging |
| 基金项目:国家自然科学基金( 61903117, 61903001)、安徽省自然科学基金(1908085QF269)项目资助 |
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| 中文摘要: |
| 针对传感器瞬态响应中的工频干扰因频率游动、谐波及频带混叠导致难以去除的问题,提出了迭代独立分量分析
(ICA)与 LEVKOV 联合抗工频干扰的方法。 将迭代 ICA 法与 LEVKOV 法相结合,通过构造工频参考信号,采用迭代 ICA 的方
法以减小瞬态响应中频率游动的工频干扰,再利用 LEVKOV 法通过线性段均值滤波和非线性段噪声模板滤波来进一步削弱工
频干扰及其谐波干扰,从而提高瞬态响应信号中工频干扰的滤除精度。 仿真和实验数据验证结果表明,所提出的迭代 ICA 与
LEVKOV 联合抗工频干扰法相较于独立的迭代 ICA 法和 LEVKOV 法而言,对传感器瞬态响应中的工频干扰具有更好的抑制
效果。 |
| 英文摘要: |
| Aiming at the problem that the power interference in the sensor transient response is difficult to remove due to frequency
swinging, harmonic and frequency aliasing, a joint anti-power interference method of iterative ICA and LEVKOV is proposed. For the
proposed method, the iterative ICA method is combined with LEVKOV method; iterative ICA method is first used to reduce the power
interference with frequency swinging based on constructing reference signal of power interference, and then LEVKOV method is used to
further remove the weakened power interference and its harmonic interferences by the means of mean filtering for linear segment and noise
template filtering for nonlinear segment, so as to improve the filtering accuracy of the power interference mixed in the sensor transient
response. The simulation and experimental data verification results show that, compared with the separated iterative ICA method and
LEVKOV method, the proposed anti-power interference method of combining iterative ICA and LEVKOV has a better suppression effect
on the power interference in the sensor transient response. |
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