Topic

Sampling, DFT and FFT

3 concepts and 30 practice problems on sampling, dft and fft, part of Signal processing.

3concepts

30exercises

≈ 2 hof study approx.

Concepts

Aliasing 10 exercisesAliasing is the overlap of spectral replicas that occurs when a signal is sampled at a rate below twice its bandwidth, so that di…
Discrete Fourier transform 10 exercisesThe discrete Fourier transform (DFT) maps a finite sequence of N complex values x[n] to N values X[k] representing its components…
Complex nth root from Complex analysis 10 exercisesAn n-th root of a complex number w is a complex number z whose n-th power, with n a positive integer, is w. If w has modulus r an…