Frequency detection method of non-stationary signal and storage medium
A non-stationary signal and frequency detection technology, applied in the testing of mechanical components, the testing of machine/structural components, and measuring devices, etc., can solve the problems of low frequency detection accuracy of non-stationary signals, and improve the frequency detection accuracy and improve Accuracy, the effect of reducing the frequency detection error
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[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments produced by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, it should be noted that "the..." in the content of the specific embodiment only refers to the technical attributes or characteristics of the present invention.
[0044] figure 1 It is a schematic flow chart of a non-stationary signal frequency detection method provided according to an embodiment of the present invention, figure 2 It is a windowed short-time Fourier transform representation diagram corresponding to a window function w...
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