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Flight experiment parameter calculation for determination of input data for onboard defence complexes development


A.A. Dontsov – Dr. Sc. (Eng.), Associate Professor, Professor, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh). E-mail: Yu.L. Koziratsky – Honored Scientist of RF, Dr. Sc. (Eng.), Professor, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh). E-mail: D.A. Nagalin – Post-graduate Student, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh) O.Yu. Tonkonogov – Test Engineer, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh)

The measurement procedure of flight experiment parameters for aircraft image registration, needed for the subsequent assessment of its protection against guided weapon with matrix optical target-seeking is worked out by means of mathematic simulation. During the model development the procedure of calculation of error dispersion of sight angles hold-in, based on error theory measurement, is applied. For the most general case of placement of an onboard defence complex and the recording equipment on aircraft the expressions allowing to estimate sight angle hold-in errors for the given linear and angular registration parameters taking into account errors of determination of position, speed, initial point of flight experiment and hold-in et of the given direction of flight, are received. The expressions for calculation of optimum sight angle in the horizontal plane, in which registration time during the flight experiment is maximum, are defined. It is shown that under condition of coordinate-time and navigation support the image registration is provided at 70…90 angle in azimuth and not less than 10 degrees in angles of elevation the registration of the images is guaranteed in time of more than 40 seconds with mean-square deviation viewing angles hold errors of not more than 0,25 degrees at the lengths of not more than two kilometers.


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