mian2.m

数字信号处理 各种滤波器的设计

clear
close all

figure('Name','采样定理的演示','NumberTitle','off','MenuBar','none');
set(gcf,'unit','normalized','position',[0.1,0.2,0.5,0.5]);
set(gcf,'defaultuicontrolunits','normalized');
haxes1=axes('position',[0.05,0.70,0.40,0.21]);%position后面的矩阵四个数据分别表示组建的坐标位置的左边、底部、宽、高
                                              %整个图形窗口的左下为（0，0），右上为（1，1）
haxes2=axes('position',[0.53,0.70,0.40,0.21]);
haxes3=axes('position',[0.05,0.40,0.40,0.21]);
haxes4=axes('position',[0.53,0.40,0.40,0.21]);
haxes5=axes('position',[0.05,0.10,0.40,0.21]);
haxes6=axes('position',[0.53,0.10,0.40,0.21]);
htext1=uicontrol(gcf,'style','text',...
                  'position',[0.17,0.92,0.15,0.03],...
                  'fontsize',8,...
                  'string','原时域信号');
htext2=uicontrol(gcf,'style','text',...
                  'position',[0.65,0.92,0.15,0.03],...
                  'fontsize',8,...
                  'string','原信号频谱');
htext3=uicontrol(gcf,'style','text',...
                  'position',[0.17,0.62,0.15,0.03],...
                  'fontsize',8,...
                  'string','采样脉冲');
htext4=uicontrol(gcf,'style','text',...
                  'position',[0.65,0.62,0.15,0.03],...
                  'fontsize',8,...
                  'string','采样频谱');
htext5=uicontrol(gcf,'style','text',...
                  'position',[0.17,0.32,0.15,0.03],...
                  'fontsize',8,...
                  'string','采样后信号');
htext6=uicontrol(gcf,'style','text',...
                  'position',[0.65,0.32,0.15,0.03],...
                  'fontsize',8,...
                  'string','采样后频谱');
htext7=uicontrol(gcf,'style','text',...
                 'position',[0.15,0.03,0.22,0.03],...
                 'fontsize',10,...
                 'backgroundcolor','white',...
                 'string','输入采样频率fs=');              
hedit=uicontrol('style','edit',...
                 'position',[0.63,0.03,0.2,0.03],...
                 'backgroundcolor','white',...
                 'visible','on');
set(hedit,'CallBack','caiyang(haxes1,haxes2,haxes3,haxes4,haxes5,haxes6);');