www.gusucode.com > 使用Matlab GUI界面实现心电滤波效果交互式查看源码程序 > filter_250_3.m

    function filter_250_3(ordernum,lowcut,highcut,lowlim,highlim,check,check1,hslider3,hslider4,text3,text4)
[Time	V1	V2	V3	V4	channelA	channelB	channelC	channelD	IO] = textread('data_250_1.dat',...
    '%f %f %f %f %f %f %f %f %f %f','headerlines',10);
N = ordernum;
T = 0.004;
Wc = [2*pi*lowcut,2*pi*highcut];
Rp = 3;
Omegac = Wc*T/pi;
[numd,dend] = cheby2(N,Rp,Omegac);
x = V4(lowlim:highlim);
y = filter(numd,dend,x);
t = Time(lowlim:highlim);
if check==1
    plot(t,x,'k');
xlim([lowlim*T*1.6,highlim*T]);
    setvalue3(text3,hslider3);
    setvalue4(text4,hslider4);
        hc=uicontextmenu;
    hlcf=uimenu(hc,'Label','背景颜色');
    uimenu(hlcf,'Label','白色','Call','set(gca,''Color'',[1,1,1])');
    uimenu(hlcf,'Label','黄色','Call','set(gca,''Color'',[1,1,0])');
    uimenu(hlcf,'Label','铜色','Call','set(gca,''Color'',[1,0.62,0.40])');
    uimenu(hlcf,'Label','墨绿色','Call','set(gca,''Color'',[0.1,0.27,0.1])');
    uimenu(hlcf,'Label','灰色','Call','set(gca,''Color'',[0.5,0.5,0.5])');
    uimenu(hlcf,'Label','黑色','Call','set(gca,''Color'',[0,0,0])');
    set(gca,'UIContextMenu',hc);  
        if check1 == 1
    pause;
end
end
if check1 == 1 
plot(t,y,'r','linewidth',1);
xlim([lowlim*T*1.6,highlim*T]);
    hc=uicontextmenu;
    hlcf=uimenu(hc,'Label','背景颜色');
    uimenu(hlcf,'Label','白色','Call','set(gca,''Color'',[1,1,1])');
    uimenu(hlcf,'Label','黄色','Call','set(gca,''Color'',[1,1,0])');
    uimenu(hlcf,'Label','铜色','Call','set(gca,''Color'',[1,0.62,0.40])');
    uimenu(hlcf,'Label','墨绿色','Call','set(gca,''Color'',[0.1,0.27,0.1])');
    uimenu(hlcf,'Label','灰色','Call','set(gca,''Color'',[0.5,0.5,0.5])');
    uimenu(hlcf,'Label','黑色','Call','set(gca,''Color'',[0,0,0])');
    set(gca,'UIContextMenu',hc);  
end