代码搜索：功率电路
找到约 10,000 项符合「功率电路」的源代码
代码结果 10,000
www.eeworm.com/read/197113/8028278
m 例程18-5.m
%采样频率
fs=10000;
nfft=10240;
%轴承滚动体故障信号
fid=fopen('bearingroll2.dat','r');%故障
N=2048;
xdata=fread(fid,N,'int16');
fclose(fid);
xdata=(xdata-mean(xdata))/std(xdata,1);
%功率谱
figure(1);
Y=abs(f
www.eeworm.com/read/197113/8028295
m 例程18-4.m
%采样频率
fs=10000;
nfft=10240;
%轴承外环故障信号
fid=fopen('bearingout1.dat','r');%故障
N=2048;
xdata=fread(fid,N,'int16');
fclose(fid);
xdata=(xdata-mean(xdata))/std(xdata,1);
%功率谱
figure(1);
Y=abs(fft
www.eeworm.com/read/197111/8028513
m 例程18-5.m
%采样频率
fs=10000;
nfft=10240;
%轴承滚动体故障信号
fid=fopen('bearingroll2.dat','r');%故障
N=2048;
xdata=fread(fid,N,'int16');
fclose(fid);
xdata=(xdata-mean(xdata))/std(xdata,1);
%功率谱
figure(1);
Y=abs(f
www.eeworm.com/read/197111/8028523
m 例程18-4.m
%采样频率
fs=10000;
nfft=10240;
%轴承外环故障信号
fid=fopen('bearingout1.dat','r');%故障
N=2048;
xdata=fread(fid,N,'int16');
fclose(fid);
xdata=(xdata-mean(xdata))/std(xdata,1);
%功率谱
figure(1);
Y=abs(fft
www.eeworm.com/read/332007/12786329
c chengxu.c
//1mS=79AD
//路0为电源电压.
//
// if (power>pwmma)
void uptime()
{ ClrWdt();
if ((pass)&&(power400)&&(power
www.eeworm.com/read/324902/13238784
m 14-2.m
I = checkerboard(8);
% 创建一个棋盘图像
PSF = fspecial('gaussian',7,10);
%创建点扩散函数PSF
V = .01;
BlurredNoisy = imnoise(imfilter(I,PSF),'gaussian',0,V);
%对模糊图像添加高斯噪声
NOISEPOWER = V*prod(size(I));
%噪声功率
www.eeworm.com/read/324406/13264152
m get_channel_white_noise.m
function [noise_vector,channel,a]=get_channel_white_noise(channel,signal_sequence)
%获得信道加性高斯白噪声，并且得到的a值用来进行功率分配
if (size(signal_sequence,2)~=0)
S=mean(abs(signal_sequence).^2);
else
S=0;
www.eeworm.com/read/313882/13580129
m qostbc.m
function Pb=qostbc(SNR_dB)
%------------------------------------------------------------------------
%星座映射采用的是QPSK映射
% SNR_dB 接收天线上的接收信噪比，在仿真的过程中把接收信号的功率归一化为1
% Pb是误比特率
%----------------------
www.eeworm.com/read/308329/13703982
m nornoise.m
function [Noise] = NorNoise(P, Len)
% 产生0均值高斯噪声行矢量；
% P为噪声交流功率（方差），Len为长度；
% 返回噪声样值
stdNoise = randn(1, Len);
Pfact = sqrt(P./mean(stdNoise.^2));
Noise = stdNoise * Pfact;
% mean(Noise.^2)
www.eeworm.com/read/489816/6461875
m program_18_04_special.m
%采样频率
fs=10000;
nfft=10240;
%轴承外环故障信号
fid=fopen('bearingout1.dat','r');%故障
N=2048;
xdata=fread(fid,N,'int16');
fclose(fid);
xdata=(xdata-mean(xdata))/std(xdata,1);
%功率谱
figure(1);
Y=abs(fft