The optical electronic system for far observing have been developed and tested. This system can use for detecting and tracking objects at night time at long distances. Also it can work in conditions of limited transparency of the atmosphere (the presence of atmospheric phenomena such as rain, snow, drizzle and fog). With the help of the system it is possible to distinguish details of objects with a size of 0.5 m at the maximum distance up to 7 km.
The new scheme of the reference channel of a remote gas analyzer has been offered and realized. The use of additional reflective elements with the low reflection factor allows to receive full interception of laser radiation and to provide a linear operating mode of a photodetector even for the strongest laser lines. At the measurement of a concentration of air pollutions on a differential method the weak dependence of reflection factors for used reflecting plates from wavelength can be easy to take into account by adding corresponding factors in the formula for calculations of air pollution concentrations. The application of the new optical scheme of the reference channel for the gas analyzer and the addition new correcting temperature constants in the calculations has allowed carrying out correct measurements of air pollutants with the high accuracy.