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%升余弦滚降系统(2径)的眼图 clear all close all N=2^14; %采样点数 L=32; %每码元采样点数 M=N/L; %码元数 Rb=2; %码速率 Ts=1/Rb; %码元间隔 dt=Ts/L; %时域采样间隔 df=1/(N*dt); %频域采样间隔 d=16; %半个码元采样点数 T=N*dt; %截短时宽 Bs=N*

function pulse = makepulse(varargin) %MAKEPULSE Modulation impulse design. % H = MAKEPULSE('PropertyName',PropertyValue,...) returns the impulse % response of desired modulation impulse. All the

#include "DSP281x_Device.h" // DSP281x Headerfile Include File #include "DSP281x_Examples.h" // DSP281x Examples Include File #include "f2812a.h" #include"math.h" #define FIRNUMBER 25 #de

// Section 7.3.1 // $ CC ptrswap.cpp main3_1b.cpp /* Before ptrswap(): pi: 10 pj: 20 After ptrswap(): pi: 20 pj: 10 */ #include using std::cout; using std::en

// #include // #include #include #include #include /***** pi: 4 *pi: 4 st1: 12 st2: 12 ps: 4 *ps: 12 short : 2 short* : 4

%例35-12：求方向导数。 syms x y z f=x*y^2-x*y*z+z^3; s=jacobian(f) sx=subs(s,'x','1'); sy=subs(sx,'y','1'); sz=subs(sy,'z','2'); g=vpa(sz) a=pi/3; b=pi/3; c=pi/3; L=g*[cos(a),cos(b),cos(c)]'

%例36-13 三维曲线绘图 t=0:2*pi; x=cos(t).*sin(t); y=2+t; z=t.^2; plot3(x,y,z)

%例23-20 文本框标注 x=0:0.02*pi:2*pi; y=sin(x)+cos(x); plot(x,y,pi,sin(pi)+cos(pi),'o') text(pi,sin(pi)+cos(pi),['sin(\pi)+cos(\pi)=',num2str(sin(pi)+cos(pi))]) gtext({'gtext1-line1','gtext1-line2'})

%例23-5 曲线格式和标记点类型设置 x=0:0.1*pi:2*pi; y3=sin(x).*cos(3*x); y1=sin(x); y2=cos(3*x); plot(x,y1,'ob',x,y2,'--dc',x,y3,':vr') %第一组数据只标记数据点

%例23-18 图例 x=0:0.02*pi:2*pi; y1=sin(x); y2=cos(x); y3=sin(3*x).*cos(x); plot(x,[y1;y2;y3]) axis([0 2*pi -1.5 1.5]) set(gca,'XTick',[0 pi 2*pi],'XTickLabel',{'0','pi','2pi'}) legend('sin(x)','c