Method and system for realizing adaptive compensation of ADC (Analog to Digital Converter) temperature change sampling deviation

The invention discloses a method and a system for realizing adaptive compensation of ADC temperature change sampling deviation. The method comprises the following steps: acquiring a fixed compensation coefficient of an ADC chip to be compensated; calculating a temperature excursion compensation coefficient at the current temperature by using a predetermined temperature excursion error compensation third-order expression; multiplying the digital sampling signal value by a fixed compensation coefficient and a temperature drift compensation coefficient to obtain a compensated digital sampling signal value; performing frequency measurement calculation on the compensated digital sampling signal value to obtain an interpolation coefficient, and performing resampling calculation according to a difference coefficient and the compensated digital sampling signal value to obtain a resampling signal value; and performing telemetering calculation on the resampling signal value to obtain a final accurate measurement effect