How to get occurrence frequency of the signal?
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Hi Everybody,
I faced difficulty regarding to get the occurrence frequency of my signal. The data are in .xls format and the column which I want to get the frequency is called "s" and I want only get frequency for those greater than 0.2. Time is define in another column. Could you please help me?
Any help would be highly appreciated.
2 个评论
Wayne King
2013-3-22
Can you please clarify, you have time-domain data in one column and the corresponding times in another column (in your spreadsheet).
When you say you only want the frequency for those greater than 0.2, what is the 0.2 (some frequency value), or are you referring to the amplitude of the signal (the value in time)?
回答(1 个)
vipul utsav
2013-3-22
freq=xlsread(filename.xls,A1:A11)
aa=find(freq>0.2)
answer=freq(aa)
in above code column A1:A10 contain freq.you can take any
7 个评论
vipul utsav
2013-3-23
you have need clarification.
whether s4 is a single value... what is s4?....then which data are in your xls file if you read xls file then some data should in xls file.
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