Aerospace Instrument-Making Annotation << Back The mathematical and hardware support of the geology and geophysics for aviation remote sensing of the earth surface S.F. Ten, O.V. Nepomnyashii, V.A. Habarov Two main methods of laser remote sensing are described. The solution of the lidar equation is given to determine the concentration of hydrocarbons in the atmosphere with the differential absorption method with respect to the radiating power on two close wavelengths. The method of selection wavelengths of the sensing and reference source of laser radiation is presented. The basic principles of hardware and software are given. The functional scheme of the measuring device is described. Key words: remote sounding, laser, lidar, lidar equation, atmosphere model, differential absorption, com-binational dispersion, hydrocarbon, GLONASS, microprocessor. Pp. 38-43