代码搜索：功率谱
找到约 2,083 项符合「功率谱」的源代码
代码结果 2,083
www.eeworm.com/read/294881/8196019
m fvalue.m
function value=fvalue(p,t)
%功率的上下限
%pmin=[-200 -80 -50 -30 -30 -40];
pmin=[40 60 80 24 26 68 110 135 135 130 94 94 125 125 125 125 125 220 220 242 242 254 254 254 254 254 254 10 10
www.eeworm.com/read/294878/8196049
m fvalue.m
function value=fvalue(p,t)
%功率的上下限
%pmin=[-200 -80 -50 -30 -30 -40];
pmin=[40 60 80 24 26 68 110 135 135 130 94 94 125 125 125 125 125 220 220 242 242 254 254 254 254 254 254 10 10
www.eeworm.com/read/173518/9653741
frm form7.frm
VERSION 5.00
Object = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}#1.1#0"; "TABCTL32.OCX"
Begin VB.Form Form7
Caption = "发电机逆功率保护"
ClientHeight = 3195
ClientLeft = 60
www.eeworm.com/read/365044/9880681
m untitled2.m
N=256;
L=256;
fs=16;
T=1/fs;
ws=2*pi*fs;
t=(0:N-1)*T;
f=exp((-2)*t);
F=fftshift(fft(f,L));
w=(-ws/2+(0:L-1)*ws/L)/2*pi;
plot(w,abs(F));
xlabel('w');
ylabel('exp((-2*t))的幅度谱')
www.eeworm.com/read/359245/10159303
m exa8_6.m
% exa080404_maspect.m ,for example 8.4.4
% to test maorder.m,maest.m,and bispect.m
clear;
% 装载数据
load ma1;
% 估计MA模型阶次
p=maorder(y);
% 计算MA模型参数
bvec=maest(y,p)
% 计算基于MA模型的双谱，并画出其平面图
www.eeworm.com/read/349384/10831465
asv five_features.asv
function feature_vector=five_features(Amplititude,Phase,Frequency)
feat
%提取零中心归一化瞬时幅度之谱密度的最大值garma_max
amp_mean=mean(Amplititude_2ask);
amp_cn=Amplititude_2ask/amp_mean-1;
garma_
www.eeworm.com/read/275066/10837337
m fudaopu2.m
%最小相位信号法求复倒谱
clear
b=[1,-0.5];
a=[1,-0.8];
N=32;
xn=impz(b,a,N); %生成最小相位序列
n=-N/2:1:N/2-1;
u=sign(n)+1; %u序列
Xk=fft(xn,N); %取傅立叶变换
Xkbar1=real(log(Xk)); %取对
www.eeworm.com/read/448259/7535666
m exa8_6.m
% exa080404_maspect.m ,for example 8.4.4
% to test maorder.m,maest.m,and bispect.m
clear;
% 装载数据
load ma1;
% 估计MA模型阶次
p=maorder(y);
% 计算MA模型参数
bvec=maest(y,p)
% 计算基于MA模型的双谱，并画出其平面图
www.eeworm.com/read/138247/13247659
m untitled2.m
N=256;
L=256;
fs=16;
T=1/fs;
ws=2*pi*fs;
t=(0:N-1)*T;
f=exp((-2)*t);
F=fftshift(fft(f,L));
w=(-ws/2+(0:L-1)*ws/L)/2*pi;
plot(w,abs(F));
xlabel('w');
ylabel('exp((-2*t))的幅度谱')
www.eeworm.com/read/477438/6735524
m s090.m
% 灰度图像二维离散余弦变换幅度谱伪彩色显示 s090
I90=imread('2.jpg');
I900=rgb2gray(I90);
I901=dct2(I900);
imshow(log(abs(I901)),[]),colormap(jet(64))