A high-precision method and device for correcting a full-height earth-space radiation signal

Abstract

The application discloses a high-precision all-altitude sky-ground radiation signal correction method and device, belongs to the technical field of radiation signal processing, and comprises the following steps: pre-processing a to-be-processed sky-ground radiation signal to obtain a zero-bias sky-ground radiation signal; calculating a soft decision function transformation coefficient and a mixed function weight coefficient according to a skewness value of the zero-bias sky-ground radiation signal; substituting the soft decision function transformation coefficient and the mixed function weight coefficient into a pre-constructed mixed function transformation model, using the mixed function transformation model to perform soft saturation transformation on the zero-bias sky-ground radiation signal, and obtaining a corrected sky-ground radiation signal; and fitting the corrected sky-ground radiation signal to obtain a fitting curve of the corrected sky-ground radiation signal. The application can correct the sky-ground radiation signal in a dynamic environment without relying on a simplified mathematical model or external reference information, and significantly improves the reliability and robustness of a sky-ground radiation measurement system.

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