efficient overlap-save for real signals

版本 1.0.0 (4.6 KB) 作者: daniel mitchell
Performing overlap-save method for convolution of a long sequence with an impulse response.
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更新时间 2022/12/6

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overlap–save is an efficient way to evaluate the convolution between a very long signal x[n] and a filter h[n]. In the case where the signals are real we can compute the output even more effiecently. In this fucntion we implement overlap-save for real signals i.e it is sufficient to keep only the positive frequencies of the fft and when computing the inverse fft we can simply complete the negetive frequencies (for real signals notice conjugate complex symmetry).

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daniel mitchell (2024). efficient overlap-save for real signals (https://www.mathworks.com/matlabcentral/fileexchange/121782-efficient-overlap-save-for-real-signals), MATLAB Central File Exchange. 检索时间: .

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1.0.0