Overlapping in real time fourier transform?

1. What is FFT overlap?
2. Why do we use overlap in FFT?
3. What is a 50% overlapping technique?
4. What are required to avoid frequency overlapping?

What is FFT overlap?

FFT convolution uses the overlap-add method together with the Fast Fourier Transform, allowing signals to be convolved by multiplying their frequency spectra. For filter kernels longer than about 64 points, FFT convolution is faster than standard convolution, while producing exactly the same result.

Why do we use overlap in FFT?

FFT processing can be particularly problematic when the signal consists of randomly occurring transients superimposed on a more continuous signal. Overlap processing is commonly used in this situation to improve the estimates.

What is a 50% overlapping technique?

A technique utilized while applying a polish or protection where each pass overlaps the previous pass by 50% to ensure thorough application.

What are required to avoid frequency overlapping?

In order to avoid this, a receiver with directional antenna is used, which can then be aligned in such a way that it will only receive the signal of one transmitter. Alternatively, the signals could be separated using a demodulator in single sideband mode.