ESTIMATION OF THE GEOMETRY FEATURES OF SPACE OBJECTS OF COMPLEX SHAPE BASED ON THE FRACTIONAL DIFFERENTIATION OF THE DOPPLER SIGNAL IN REAL-TIME

. The performance improvement of the asymmetry estimation algorithm of the Doppler frequency spectrum during radar sounding of moving and rotating space objects? Such as asteroids, comet nuclei and space debris objects – is achieved by using fractional signal differentiation without spectral processing. An accurate estimate of the asymmetry coefficient of the Doppler spectrum can be obtained in the time domain as the signal arrives almost immediately after it arrives. This is accomplished by calculating a derivative of the order of 3/2 of the signal. The implementation of a fractional-differentiating filter of the order of 3/2 with a set of static links of automation is considered, which greatly simplifies the practical implementation. The concept of a pre-derivative of order 3/2 is used, for which the structure of a fractional-differentiating filter of order 3/2 is constructed.