Signal processing in laser gas-analysis of atmosphere

Signal processing is considered at remote and local control of the atmosphere pollution and at the analysis of multicomponent gas mixture composition. It is shown that non-controlled errors can arise at reconstruction of the gas mixture component densities because the other gas components having differential absorption on the lengths of measurement waves were not taken into account. To eliminate these errors the preliminary expressanalysis is necessary to detect the gas present in the atmosphere or in a certain gas mixture.