A modified algorithm of an Active Noise Control system based on Frequency-Selective Filter (FSFANC) is proposed.
提出了一种改进的选频有源噪声控制(FSFANC)算法。
Frequency Selective Filter (FS f) is utilized to design feedback controller in frequency do-main. For each disturbance frequency, there are only two real coefficients to be tuned.
使用频率选择滤波方法在频域设计反馈控制器，对每个干扰频率，仅需调节两个实系数。
Being able to push down aggregation operations or very selective predicates to CF (i.e. those that filter out many rows) will result in the greatest benefit.
如果能将聚合操作或选择性非常强的谓词(即能过滤掉很多行的谓词)下推到CF，就可以获得最大的益处。
According to the annotation information in the figure, the table reference CUST_CUSTOMER (CCUS) has two local predicates which are very selective, with filter factor 0.00727 and 0.004, respectively.
根据图中的注释信息，优先表CUST_CUSTOMER (CCUS)有两个本地谓词，其选择性很强，各自的过滤因子分别是0.00727和0.004。
The filter factor indicates how selective the predicate is.
过滤因子表示谓词的选择性有多强。
The method includes the selective extraction of domoic acid in fresh mussel, the pretreatment with centrifuge and filter, chromatographic analysis in the optimized conditions.
采用含甲醇的水溶液，选择性地提取鲜淡菜中软骨藻酸，经离心、过滤等手段进行样品处理，在最优化的条件下进行液相色谱检测。
Such distinctive optical properties as opticity and selective reflection of chiral agent-doped PDLC have widely been applying in the field of light filter, grating, and reflective display, etc.
手性掺杂的聚合物分散液晶的旋光性、选择反射等独特的光学性能被广泛应用于滤波片、光栅、反射显示等方面。
A frequency selective surface (FSS) is a metallic periodic structure with frequency selective properties. Depending upon design, it may be low-pass, high-pass, band-pass, band-stop filter.
频率选择表面（FSS）是具有选择频率功能的一块金属周期结构，它可以被设计成低通、高通、带通、带阻滤波器。
This paper proposes a new selective harmonic detecting method for selective harmonic compensation active power filter to provide precise compensations using in rural power system.
为了实现对农村电网谐波的实时和准确补偿，提出了一种用于单相有源电力滤波器可检测任意指定次谐波的新方法。
A new type of high contrast filter has been investigated in this paper. lt has features of lower light reflection on surface, selective transmission and effective electromagnetic screen.
本文介绍自行研制的高对比度滤光片。它具有较低的表面光反射率、选择性透过率和电磁屏蔽特性。
Under normal circumstances, in order to filter at any frequency band have good frequency resolution, can be used with a broadband constant-pass filter, such as radio frequency-selective.
一般情况下，为使滤波器在任意频段都有良好的频率分辨力，可采用恒带宽带通滤波器，如收音机的选频。
Under normal circumstances, in order to filter at any frequency band have good frequency resolution, can be used with a broadband constant-pass filter, such as radio frequency-selective.
一般情况下，为使滤波器在任意频段都有良好的频率分辨力，可采用恒带宽带通滤波器，如收音机的选频。
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