Compressed sensing signal collection method based on filtering
A signal acquisition and compressive sensing technology, applied in the field of signal processing, can solve the problems that the signal reconstruction effect is not significantly improved, the size is not arbitrary, and affects the applicability, etc. Effect
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[0052] Below in conjunction with the accompanying drawings and specific embodiments, the technical solution is further described as follows:
[0053] Filter-based compressed sensing signal acquisition method
[0054] In order to obtain the observation of "sampling while compressing", the typical physical implementation method of CS is random downsampling. [17] , analog information converter sampling [18] and random filter sampling [19] Wait. Reference [3] designs a dual-channel A / D random co-sampling based on the classical CS implementation principle, but the storage capacity of random number registers and the calculation of dimensionality reduction random projection are large, which affects the sampling efficiency.
[0055] The present invention considers the signal x∈R N Difference Equation Through Finite Impulse Response Filter
[0056] y ( i ) = Σ k
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