How to obtain autocorrelation function of long spanned GPS time series with lags of one month, six month and one year

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Chris Martin
Chris Martin 2013년 5월 30일
How to obtain autocorrelation function of long spanned GPS time series with lags of one month, six month and one year, Please help me
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Walter Roberson
Walter Roberson 2013년 6월 3일
Which toolboxes do you have available? I see autocorrelation functions available in at least DSP and Econ.

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Walter Roberson
Walter Roberson 2013년 6월 3일
http://www.mathworks.com/matlabcentral/fileexchange/30540-autocorrelation-function-acf
To determine the appropriate lag, you are going to need to specify how you want to deal with the irregular number of days in a month and the fact that the two 6 month periods are of different length (have to be, as there is an odd number of days in a year.)

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