Voltage fluctuation and flicker signal detection algorithm
A signal detection and voltage fluctuation technology, applied in the field of voltage fluctuation and flicker signal detection algorithm, can solve the problems of multi-frequency AM envelope signal detection error, noise sensitivity, affecting the amplitude and frequency estimation accuracy of AM envelope signal, etc.
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[0071] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in this specification and the accompanying drawings.
[0072] A voltage fluctuation and flicker signal detection algorithm, the technical solution of the present invention: carry out mathematical modeling on the voltage signal containing flicker; according to the orthogonality characteristic of the cosine function, by constructing a suitable objective function, the fundamental signal The detection of the detection is transformed into a simple mathematical optimization equation solving problem; using the method of L0 norm regularization, the optimization equation for recovering the envelope from the modulation signal is established; by solving the above two optimization equations, the basic Detection and estimation of wave sig...
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