DETERMINATION OF THE AIRCRAFT ROTATION FREQUENCY OVER THE SEQUENCE OF VIDEO IMAGES
V. M. Ponyatsky
VANT. Ser.: Mat. Mod. Fiz. Proc 2007. Вып.1. С. 89-103.
The issues of determination of the rotation frequency over video images of an on-board radiation source of a rotating aircraft obtained using matrix photodetector are discussed. Continuous and discrete quasi-optimal algorithms with the third-order phase frequency autoadjustment coefficients are developed for 2D signal. The field of permissible values of phase frequency auto-adjustment coefficients is determined, which provides evaluation of the phase and the signal frequency during the whole flying period of the aircraft. The developed algorithms are compared with the Fourier transformation in a running window and with the Kalman filter. The obtained estimation and prediction algorithms for the frequency of the measured signals are simulated in the Matlab environment. The measured signals are presented in compliance with the sequence of the video images.
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English
