负载(“RRData.mat”);
R = RRData.Strain_C_Fz;
L = RRData.Strain_HB_Fy;
t = RRData.Time;
样品=长度(t);
Fs = (samples-1) / (t(样本)- t (1));
[R_max, idx] = max (R);
[L_max, idx] = max(左);
t_m = t (idx);
图(1)
情节(t, R);在传说;情节(t、L); (“对”,“左”);
情节(t_m R_max,“^ r”);在;情节(t_m L_max,“罗”)
文本(t_m R (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、R_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
文本(t_m L (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、L_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
标题(['数据样本在Fs = 'num2str(圆(Fs))“赫兹”]);
网格
decim = 50;
如果decim > 1
R = decimate (R,decim);
L = decimate (L,decim);
Fs = Fs / decim;
结束
样品长度= (R);
t = (0:samples - 1)*1/Fs;
[R_max, idx] = max (R);
[L_max, idx] = max(左);
t_m = t (idx);
图(2)
情节(t, R);持有在;情节(t、L);传奇(“对”,“左”);
情节(t_m R_max,“^ r”);在;情节(t_m L_max,“罗”)
文本(t_m R (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、R_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
文本(t_m L (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、L_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
标题(['数据样本在Fs = 'num2str(圆(Fs))“赫兹”]);
网格在
图(3)
N = 25;
Rs = slidingavg (R, N);
Ls = slidingavg (L, N);
[R_max, idx] = max (Rs);
[L_max, idx] = max (Ls);
t_m = t (idx);
情节(t, Rs);持有在;情节(t, Ls);传奇(“对”,“左”);
情节(t_m R_max,“^ r”);在;情节(t_m L_max,“罗”)
文本(t_m R (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、R_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
文本(t_m L (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、L_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
标题(['数据样本在Fs = 'num2str(圆(Fs))“Hz / Smoothed with slidingavg”]);
网格在
图(4)
N = 50;
Rs = medfilt1(R, N,“截断”);
Ls = medfilt1(L, N,“截断”);
[R_max, idx] = max (Rs);
[L_max, idx] = max (Ls);
t_m = t (idx);
情节(t, Rs);持有在;情节(t, Ls);传奇(“对”,“左”);
情节(t_m R_max,“^ r”);在;情节(t_m L_max,“罗”)
文本(t_m R (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、R_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
文本(t_m L (idx) sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、L_max t_m),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
标题(['数据样本在Fs = 'num2str(圆(Fs))'Hz / Smoothed with medfilt1']);
网格在
图(5)
N = 50;
Rs = sgolayfilt (R, 3, 51);
51 Ls = sgolayfilt(左3);
[Rs_max,指数]= max (Rs);
[Ls_max,指数]= max (Ls);
t_max = t(指数);
情节(t, Rs);持有在;情节(t, Ls);传奇(“对”,“左”);
情节(t_max Rs_max,“^ r”);在;情节(t_max Ls_max,“罗”)
文本(t_max Rs(索引),sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、Rs_max t_max),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
文本(t_max Ls(索引),sprintf ('\\leftarrow Max = %。6f\n t = %。2 f '、Ls_max t_max),“HorizontalAlignment”,“左”,“VerticalAlignment”,“高级”)
标题(['数据样本在Fs = 'num2str(圆(Fs))'Hz / Smoothed with sgolayfilt']);
网格在