代码搜索：波形合成
找到约 3,528 项符合「波形合成」的源代码
代码结果 3,528
www.eeworm.com/read/402633/11531182
txt 51定时器实验.txt
#pragma db code
#include
#define uchar unsigned char
#define uint unsigned int
;可以用示波器观察输出频率和波形.
sbit K1=P2^4;
sbit K2=P2^5;
sbit out=P3^7;
void delay(uint a);
void ma
www.eeworm.com/read/400471/11576056
txt 新建 文本文档.txt
http://download.csdn.net/source/911236
简介:主要用于MCU产生Vsin,查表产生正弦波
1.PWM输出最好采用正半周期,PWM选两路交替查表,用桥臂电路进行功率放大
2.DA输出可以使用产生全波形
www.eeworm.com/read/262288/11594208
m f5_1.m
%产生非平稳信号
%%暂态信号1
sig1=fmlin(128,0,0.4);
%%暂态信号2
sig2=fmlin(128,0.1,0.45);
sig=sig1+sig2;
%时域波形
figure(1)
plot(real(sig),'LineWidth',2);
hold on;
plot(imag(sig),'ro--');
legend('实部','虚部');
www.eeworm.com/read/262288/11594215
m f5_2.m
%产生非平稳信号
%%暂态信号1
sig1=fmlin(128,0,0.3);
%%暂态信号2
sig2=fmlin(128,0.2,0.4);
sig=sig1+sig2;
%时域波形
figure(1)
plot(real(sig),'LineWidth',2);
hold on;
plot(imag(sig),'ro--');
legend('实部','虚部');
x
www.eeworm.com/read/262288/11594378
m f8_2.m
%实验信号
N=1024;
t=1:N;
%%外环故障信号
fid=fopen('I3CH4.dat','r');
sig=fread(fid,N,'int16');
fclose(fid);
%归一化
sig=(sig-mean(sig))/std(sig,1);
%采样频率
fs=10000;
%时域波形
figure(1)
plot(t/fs,sig);
x
www.eeworm.com/read/262288/11594582
m f4_5.m
%产生非平稳信号
%%暂态信号1
sig1=real(amgauss(128,45).*fmconst(128,0.25,45));
%%暂态信号2
sig2=real(amgauss(128,85).*fmconst(128,0.25,85));
sig=sig1+sig2;
%时域波形
figure(1)
plot(sig,'LineWidth',2);
xlabel('时间
www.eeworm.com/read/254942/12111755
m f4_5.m
%产生非平稳信号
%%暂态信号1
sig1=real(amgauss(128,45).*fmconst(128,0.25,45));
%%暂态信号2
sig2=real(amgauss(128,85).*fmconst(128,0.25,85));
sig=sig1+sig2;
%时域波形
figure(1)
plot(sig,'LineWidth',2);
xlabel('时间
www.eeworm.com/read/338071/12325824
m draw2.m
res_temp=NorMK2_DH(500:1500);
res_dec=resample(res_temp,1,3);
res_int=resample(res_temp,3,1);
figure;
subplot(311);
plot(res_temp);grid on;
axis([0,1000,-1,1]);
title('一段信号波形');
subplot(312)
www.eeworm.com/read/226910/14448119
txt qpsk.txt
%设载波频率为20Hz，信息速率为2Baud,用MatLab画出QPSK信号波形。
%file name: qpsk.m
%Written by Dr. James S. Kang, Cal Poly Pomona.
%Plot of QPSK waveform and spectrum.
%d = input data such as [1 1 0 0 1 0 0 1 1 1].
www.eeworm.com/read/225679/14526061
m f5_1.m
%产生非平稳信号
%%暂态信号1
sig1=fmlin(128,0,0.4);
%%暂态信号2
sig2=fmlin(128,0.1,0.45);
sig=sig1+sig2;
%时域波形
figure(1)
plot(real(sig),'LineWidth',2);
hold on;
plot(imag(sig),'ro--');
legend('实部','虚部');