TY - JOUR
AU - Асадов, Х. Г.
AU - Маммадова , У. Ф.
PY - 2020/12/30
Y2 - 2021/02/27
TI - Increase of Lidar-Sun Photometer System Efficiency of Functioning
JF - Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia
JA - RADAP
VL -
IS - 83
SE -
DO - 10.20535/RADAP.2020.83.36-40
UR - http://radap.kpi.ua/radiotechnique/article/view/1669
SP - 36-40
AB - <p>The question on evaluation of lidar-sun photometric system efficiency of functioning is researched. Lidar systems both the ground and space designation should pass initial check up and validation of derived data upon ground measurements. Formulation of new criteria of efficiency of functioning of lidar-sun photometric systems keeps its actuality for whole subclass of atmospheric laser sensing systems. Signal-noise low ratio value of received signals, clouds effects and allowed wrong initial estimates of attenuation and scattering factors ratio could lead to negative result. To decrease error of lidar functioning the joint operation of lidar with sun photometer is practized. For complex of remote sensing composed of lidar and sun photometer the criterion of functioning efficiency that is covariation of two functions: (a) reflected signal, depending on distance of sensing and (b) laser irradiation power considered as function of said distance is suggested. The lidar-photometric system should be estimated as effective if covariation of said functions reaches minimum, that is sensing and reflected signals are completely different. The optimization task is formulated using procedure of non-conditional variation optimization upon some limitation condition imposed on searched function of laser power dependence on sensing distance. Solution of optimization task using Euler method make it possible to obtain the optimum type of the function upon which the adopted criterion of efficiency reaches minimum value that is system operates by maximum efficiency.</p>
ER -