Fourier analysis of Pressure drop signals

Hey, i want to perform fourier analysis on some pressure drop data i have. the data is huge and contains nearly 45,000 pressure signals. how am i supposed to do this?

[Dana]

"I want to perform fourier analysis" is an extremely vague statement. Try asking your question again, but this time be very explicit about what you want.

• Describe precisely what your data set looks like (e.g., what data format and size is each of the 45,000 pressure signals? how are different signals collected together?).
• Describe also precisely what you want the output of this exercise to be (e.g., are you wanting to see plots of some kind? if so, what kind? what about descriptive statistics?).
• It would also be good to be precise about what you already know how to do, and what you don't know how to do, so that people can give you more useful answers.

[Simran Chaudhary]

this is the data i have, these are pressure drop readings. these are obtained by converting voltage signals in a fluidized bed. i want to perform fourier analyisis of these instantaneous pressures and plot it, i also want to do PSD analysis. i dont know matlab at all.

[Simran Chaudhary]

i also need to make a probility density distribution of these signals at different axial and radial positions, and understand the effect of longitudnal height on the PDD.

[Star Strider]

The file contains one column. There are no sampling times, no sampling frequency is provided, and there is no position or related information (such as (x,y,z) coordinates), so axial and radial position calculations are impossible.

[Simran Chaudhary]

the Sampling Frequency is 1000Hz and the time is 60s for each reading.