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www.eeworm.com/read/314196/13571768
m dtransform.m
%dtranform.m 数字滤波器设计，从低通到其他类型滤波器的频率对应关系
%具体的坐标频率转换公式参见《数字信号处理》第二版 丁玉美，高西全, 西安电子科技大学出版社
function [out0,out1]=dtransform(w,string)
%下面的参数为设计滤波器时给定的参数
wu=0.7*<mark>pi</mark>;
wl=0.5*<mark>pi</mark>;
wc=0.4*<mark>pi</mark>; %最终设计的低 ...
www.eeworm.com/read/314196/13571823
m firfilterdesign.m
wp=0.2;ws=0.4;Rp=1;As=20; % 定义滤波器参数(可修改)
[n,wc]=buttord(wp,ws,Rp,As); % 计算滤波器阶次和3dB截止频率
[b,a]=butter(n,wc); % 设计巴特沃斯滤波器
w=[0:pi/200:pi];
www.eeworm.com/read/313963/13577801
m ip_07_07.m
% MATLAB script for Illustrative Problem 7.7.
clear
echo on
Tb=1;
f1=1000/Tb;
f2=f1+1/Tb;
phi=pi/4;
N=5000; % number of samples
t=0:Tb/(N-1):Tb;
u1=cos(2*pi*f1*t);
u2=cos(2*pi*f2*t);
www.eeworm.com/read/313956/13577994
m ip_07_07.m
% MATLAB script for Illustrative Problem 7, Chapter 7.
echo on
Tb=1;
f1=1000/Tb;
f2=f1+1/Tb;
phi=pi/4;
N=5000; % number of samples
t=0:Tb/(N-1):Tb;
u1=cos(2*pi*f1*t);
u2=cos(2*pi*f2*t)
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/312667/13606529
m chap3_11f.m
function [y]=func(x1,x2,x3)
for l1=1:1:3
gs1=-[(x1+pi/6-(l1-1)*pi/6)/(pi/12)]^2;
u1(l1)=exp(gs1);
end
for l2=1:1:3
gs2=-[(x2+pi/6-(l2-1)*pi/6)/(pi/12)]^2;
u2(l2)=exp(gs2);
end
www.eeworm.com/read/312573/13608815
m dfs.m
function [Xk]=dfs(xn,N)
n=[0:1:N-1];
k=[0:1:N-1];
WN=exp(-j*2*pi/N);
nk=n'*k;
WNnk=WN.^nk;
Xk=xn*WNnk;
www.eeworm.com/read/312211/13615461
cpp xmoment.cpp
#include
#include
#include
#include "nr.h"
using namespace std;
// Driver for routine moment
int main(void)
{
const int NPTS=5000,NBIN=100,NPPNB=NPTS+N
www.eeworm.com/read/312043/13619829
m rthet3.m
%%%%%%%%%%%%% 10*10平面阵的指向性 %%%%%%%%%%%%%
clear all;
close all;
clc;
f=60*10^3;
fs=5*f;
w=2*pi*f;
c=1500;
lmd=c/f;
d=lmd/2;
%d=0.015;
theti=90*pi/180;%入射信号的方位角－45～45，与平面阵的夹角
faii=0*pi/180;
www.eeworm.com/read/311304/13632707
m tulun.m
function tulun3(R,H)
syms S V A J
for j=0:0.01:pi*2
if j