代码搜索：测频测相
找到约 5,809 项符合「测频测相」的源代码
代码结果 5,809
www.eeworm.com/read/406902/11432904
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/406599/11439276
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/405376/11464112
asv liu4.asv
%实验四 升余弦信号的功率谱及眼图
global dt t df N
close all
N=2^14; %采样点数
L=32; %每码元的采样点数
M=N/L %码元数
Rb=2; %码速率是2Mb/s
Ts=1/Rb; %码元间隔
dt=Ts/L; %时域采样间隔
df=1/(N*dt) %频
www.eeworm.com/read/405376/11464121
m liu4.m
%实验四 升余弦信号的功率谱及眼图
global dt t df N
close all
N=2^14; %采样点数
L=32; %每码元的采样点数
M=N/L %码元数
Rb=2; %码速率是2Mb/s
Ts=1/Rb; %码元间隔
dt=Ts/L; %时域采样间隔
df=1/(N*dt) %频
www.eeworm.com/read/262288/11594245
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/252463/12281149
c pwm.c
#include
#include
#define PWM0 PORTB3 //OC0 PB3
volatile unsigned char T0OCR; //设置T0的时间值
/*相位修正模式输出方波,64分频*/
void timer0_init(void)
{
OCR0 = T0OCR;
www.eeworm.com/read/225679/14526076
m f5_16.m
%产生非平稳信号
%%信号1:冲击信号
sig1=anapulse(128);
%%信号2：两个正弦信号的叠加
sig2=fmconst(128,0.15)+fmconst(128,0.35);
%计算信号1的尺度图
[tfr,t,f,wt]=tfrscalo(sig1,1:128,6,0.05,0.45,128,1);
%时频分布
figure(1)
contour(t,f
www.eeworm.com/read/206158/15299314
m k_hht.m
%脉动信息emd分析,斜率
%用HT分析法分析瞬时频律
clear
clc
load 'k.txt';
%选取观察窗
window=201:2200;
sig2=k(window,1);
%采样频率
fs=100;
N=length(sig2);
T=1:N;
%EMD分解IMFs
imf_a=emd(sig2,1:length(sig2),0.2);
imf_
www.eeworm.com/read/7227/110390
asm 972.asm
.include"8535def.inc"
t2pwm1: ;产生15686Hz的方波
sbi ddrd,7
ldi r16,$71 ;PWM2使能，向上计数置引脚
out tccr2,r16 ;向下计数清引脚，时钟1分频
ldi r16,$80
out ocr2,r16
www.eeworm.com/read/25996/850803
c spi_tlc5615.c
#define SPI_TLC5615_C
#include "includes.h"
void spi_init(void)//SPI初始化
{
SPCR=0X50; //使能SPI，MSB先发，主模式,CPOL为0，默认4分频
}
void spi_io_init(void)
{
DDRB|=(1