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[moved] preffered data and FFT length for blackman harris window

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kranthi0510

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fr Rectangular window if data length is 1K then FFT Lenght Should be 1K FFT only because ENBW of rectangualr window is 1.0 but for Minimum 4-Sanple BlackmannHarris window is 2.0. so for improving accuracy in terms of either frequency or amplitude which method is preferrded in below 1. for 1K Data i will append 1K zeros and Caluclate 2K FFT or 2. instead of 1K data take 2K data and calclate 2K FFT

or else any other method please calrify ..
 

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