代码搜索：共模滤波
找到约 10,000 项符合「共模滤波」的源代码
代码结果 10,000
www.eeworm.com/read/453188/7424906
m mfcc.m
function ccc = mfcc(x)
% 归一化mel滤波器组系数
bank=melbankm(24,256,8000,0,0.5,'m');
bank=full(bank);
bank=bank/max(bank(:));
% DCT系数,12*24
for k=1:12
n=0:23;
dctcoef(k,:)=cos((2*n+1)*k*pi/(2*24)
www.eeworm.com/read/453188/7424913
m mfcc.m
function ccc = mfcc(x)
% 归一化mel滤波器组系数
bank=melbankm(24,256,8000,0,0.5,'m');
bank=full(bank);
bank=bank/max(bank(:));
% DCT系数,12*24
for k=1:12
n=0:23;
dctcoef(k,:)=cos((2*n+1)*k*pi/(2*24)
www.eeworm.com/read/452877/7431511
m chebyshev.m
function chebyshev ( mode , freq , alphap , alphas , fp , fs , fp2)
%用法：chebyshev ( mode , freq , alphap , alphas , fp , fs , fp2)
%mode用来选择滤波器模式，1为低通，2为高通，3为带通
%freq:采样频率 alphap:通带衰减 alphas:阻带衰减
www.eeworm.com/read/448089/7540739
m dtmfproduce.m
function [dtmf,pointnum]=DTMFproduce(freq,fs,sigtime,wholetime)
%本程序的作用是利用数字正弦波滤波器的原理产生频率可以控制的音频波
%800点
%dtmf 生成的数据序列
%pointnum 生成数据序列的长度
%freq 音频频率
%fs 抽样频率
www.eeworm.com/read/446616/7574630
m bandpass3.m
clear all;
close all;
clf;
fsa=3;fpa=4;fpb=6;fsb=8;Apass=0.1;Astop=80;
fs=20; %kHz%
wa=pi*(fsa+fpa)/fs; wb=pi*(fsb+fpb)/fs;
%%%%%%% 所需带通滤波器的频率相应 D(w) %%%%%%%%%%%
w=[-pi,-wb,-wb,-wa,-wa,wa,wa
www.eeworm.com/read/444759/7607322
m 5-6.m
%例程5－6 辨识FIR系统
% e.g.5-6.m for example5-6;
% to test function of tfestimate;
Fs=10^3;
t=0:1/Fs:1;
xn=randn(length(t),1);
b=ones(1,5)/5; %产生滤波器的系数
yn=filter(b,1,xn);
[
www.eeworm.com/read/444759/7607504
m 7-8.m
%例程7－8 自适应窄带干扰抑制
t=0:1/10:400;
s=sin(2*pi*t/10); %窄带干扰
x=awgn(s,15); %叠加宽带噪声
D=100; %延迟
r=[zeros(1,D),x];
x=[x zeros(1,D)];
%r经LMS自适应滤波
N=5;
www.eeworm.com/read/444759/7607505
m 7-14.m
%例程7－14 基于卡尔曼滤波器的机动目标跟踪
% Make a point move in the 2D plane
% State = (x y xdot ydot). We only observe (x y).
% X(t+1) = Φ(t) X(t) + noise(Q)
% Y(t) = H X(t) + noise(R)
ss = 4; % state si
www.eeworm.com/read/444759/7607541
m 4-23.m
%例程4－23 利用汉宁窗设计Ⅰ型数字带阻滤波器
clear all;
Wpl=0.2*pi;
Wph=0.8*pi;
Wsl=0.4*pi;
Wsh=0.6*pi;
tr_width=min((Wsl-Wpl),(Wph-Wsh)); %过渡带宽度
N=ceil(6.2*pi/tr_width)
www.eeworm.com/read/444759/7607544
m 4-21.m
%例程4－21 利用三角窗设计Ⅲ型数字带通滤波器
clear all;
Wpl=0.4*pi;
Wph=0.6*pi;
Wsl=0.2*pi;
Wsh=0.8*pi;
tr_width=min((Wpl-Wsl),(Wsh-Wph)); %过渡带宽度
N=ceil(6.1*pi/tr_width)