clear;
clc;
load spo2_3p.txt; %spo2_0p2.txt spo2_0p4.txt spo2_3p.txt
result = spo2_3p;
len=50;
x = [1:len];

f=[1:len];
%第二，第三個(gè)字節(jié)是紅光脈搏波數(shù)據(jù)
rdxn = result([(x-1)*5+2])*256 +result([(x-1)*5+3]);

myemd(rdxn)