Data Types: double | single filter(b,a,x,zi,dim):dim是指定维度,如果x是一个矩阵,那么如果dim为1(默认值),那么就把对矩阵的每个列进行滤波,如果dim为2,则对矩阵的行进行滤波。 Filter Data in Sections Use initial and final conditions for filter delays to filter data in sections, especially if m...
Data Types: double | single filter(b,a,x,zi,dim):dim是指定维度,如果x是一个矩阵,那么如果dim为1(默认值),那么就把对矩阵的每个列进行滤波,如果dim为2,则对矩阵的行进行滤波。 Filter Data in Sections Use initial and final conditions for filter delays to filter data in sections, especially i...
This example shows how to modify the amplitude of a vector of data by applying a transfer function. In digital signal processing, filters are often represented by a transfer function. The Z-transform of the difference equation 此示例显示如何通过应用传递函数来修改数据矢量的幅度。 在数字信号处理中,...
Filters are data processing techniques that can smooth out high-frequency fluctuations in data or remove periodic trends of a specific frequency from data. In MATLAB®, thefilterfunction filters a vector of dataxaccording to the following difference equation, which describes a tapped delay-line fil...
dataOut = filter(lpFilt,dataIn); Output the filter coefficients, expressed as second-order sections. sos = lpFilt.Coefficients sos =4×60.2666 0.5333 0.2666 1.0000 -0.8346 0.9073 0.1943 0.3886 0.1943 1.0000 -0.9586 0.7403 0.1012 0.2023 0.1012 1.0000 -1.1912 0.5983 ...
1-D digital filter collapse all in pageSyntax y = filter(b,a,x) y = filter(b,a,x,zi) y = filter(b,a,x,zi,dim) [y,zf] = filter(___)Description y = filter(b,a,x) filters the input data x using a rational transfer function defined by the numerator and denominator coefficient...
To apply the filter to data, you can use the filter command or you can use dsp.FIRFilter. dsp.FIRFilter has the advantage of managing state when executed in a loop. dsp.FIRFilter also has fixed-point capabilities and supports C code generation, HDL code generation, and optimized code gene...
Filter Data in Sections Use initial and final conditions for filter delays to filter data in sections, especially if memory limitations are a consideration. Generate a large random data sequence and split it into two segments,x1andx2. x=randn(10000,1);x1=x(1:5000);x2=x(5001:end); ...
2-D digital filter collapse all in pageSyntax Y = filter2(H,X) Y = filter2(H,X,shape)Description Y = filter2(H,X) applies a finite impulse response filter to a matrix of data X according to coefficients in a matrix H. example Y = filter2(H,X,shape) returns a subsection of the...
The following is generated MATLAB code when you choose File > Generate MATLAB Code > Data Filtering Function (with System Objects) for the equiripple bandpass filter designed in this example. function Hd = ExFilter %EXFILTER Returns a discrete-time filter object. % MATLAB Code % Generated by ...