Weak signal extracting method based on self-adaptive stochastic resonance
A stochastic resonance, weak signal technology, applied in magnetic resonance measurement, material analysis through resonance, magnetic property measurement, etc., can solve the problems of weak signal detection and signal feature extraction can not meet
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[0027] Combine below Figure 1 to Figure 8 The weak signal extraction method of the present invention is described, figure 1 It is a structural block diagram of the weak signal extraction method of the present invention, figure 2 It is a schematic diagram of the weak signal extraction process of the present invention, which specifically includes the following steps:
[0028] S1. Initialization parameters: The parameters specifically include, the resampling scale conversion factor R, the increase step size ΔR of the scale conversion factor; the inherent parameter a of stochastic resonance, and the reference frequency f for generating stochastic resonance ref , f ref The calculation offset Δf of the zero frequency calculation offset Δf 0 ; Spectral magnitude comparison coefficient m.
[0029] The following describes the values of the initial parameters in detail:
[0030] f ref The value of is the frequency value at which the adaptive stochastic resonance system is easy...
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