Enhanced gas concentration inversion method and system based on signal interference elimination

Abstract

The invention provides an enhanced gas concentration inversion method and system based on signal interference elimination. Interference elimination processing can be carried out on collected signals. The method comprises the following steps: firstly decomposing an acquired signal into a plurality of modal components, screening out a part bearing effective information, realizing first interference elimination processing, reconstructing effective signal components, and performing second interference elimination processing, so that the waveform of the acquired signal is clearer and more stable. Through the gas concentration detection model, a gas concentration inversion value can be accurately obtained, so that the real concentration of the gas is calculated. The precision and stability of concentration inversion are maintained while nonlinear noise and background interference in the collected signals are effectively suppressed.

Images