Super sensitive time resolution spectrograph and time resolution method thereof
A technology of sensitive time and spectrometer, applied in the optical field, can solve the problems of spectral analysis and time resolution of unobservable objects, achieve high time resolution accuracy, reduce the measurement dimension and measurement scale.
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[0058] The present invention will be further described now in conjunction with accompanying drawing.
[0059] Before describing the present invention in detail, firstly, relevant concepts involved in the present invention will be described accordingly.
[0060] Time resolution: It refers to the ability to observe the transient process of physics and chemistry and to distinguish its time.
[0061] Compressive Sensing (CS for short) principle: The compressed sensing principle is a new mathematical theory proposed by Donoho, Tao and Candès et al. According to this theory, it can be randomly sampled with fewer data samples (far below the limit of the Nyquist / Shannon sampling theorem) to perfectly restore the original signal with higher robustness. Compressed sensing is mainly divided into three steps: compressed sampling, sparse transformation and algorithm reconstruction; among them, compressed sampling refers to the process of mapping and collecting the measured signal from hig...
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