Modified subband adaptive notch filters for eliminating multiple sinusoids with reduced bias and faster convergence
Modified subband adaptive notch filters for eliminating multiple sinusoids with reduced bias and faster convergence
复制标题
改进的子带自适应陷波滤波器，用于消除多个正弦波，并减少偏差并加快收敛速度
DOI：
10.1109/iscas.2017.8050871
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Masaki Kobayashi
中科院分区：
文献类型：
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作者：
Y. Kinugasa;T. Saramäki;Y. Itoh;N. Sasaoka;K. Shiogai;Masaki Kobayashi
提出了一种改进的子带自适应陷波滤波器，用于检测和消除宽带（实际上是白色）信号中的多个未知正弦波。所提出的SAN滤波器提高了收敛速度和估计精度，特别是当正弦波具有接近的角频率时，在这种情况下，原始SAN滤波器遭受收敛和精度问题。几个模拟包括说明所提出的SAN过滤器的优越性，在相当好的估计精度和更快的收敛速度。
This paper proposes an improved version of sub-band adaptive notch (SAN) filters for detecting and eliminating multiple unknown sinusoids embedded in the broadband (in fact, white) signals. The proposed SAN filters enhance both the convergence speed and estimation accuracy especially when sinusoids have close angular frequencies, under which circumstances the original SAN filters suffer from convergence and accuracy problems. Several simulations are included illustrating the superiority of the proposed SAN filters over their original counterparts, in terms of considerably better estimation accuracy and faster convergence speed.