Scaling

Time scaling fft

Time scaling fft
  1. What is scaling in FFT?
  2. What is the time scaling property of Fourier transform?
  3. What is 64 point FFT?
  4. How many periods do I need for FFT?

What is scaling in FFT?

The Fast Fourier Transform Product guide (PG109) explains that scaling is used to avoid bit growth in the output as a result of the arithmetic operations used to implement the FFT algorithm.

What is the time scaling property of Fourier transform?

Time Scaling

If a function is expanded in time by a quantity a, the Fourier Transform is compressed in frequency by the same amount.

What is 64 point FFT?

The 64-point FFT is realized by decomposing it into a two-dimensional structure of 8-point FFTs. This approach reduces the number of required complex multiplications compared to the conventional radix-2 64-point FFT algorithm. The complex multiplication operations are realized using shift-and-add operations.

How many periods do I need for FFT?

Number of periods of signal required when doing an FFT: 1

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