| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: result is achieved by employing an additional radar station in full-scale experiments with real aerial objects, said additional radar station having a carrier frequency different from the frequency of the main radar station used in the experiments. Both radar stations are switched to automatic tracking mode on angular coordinates and range, and after identification of marks from the aerial object, signals reflected by the aerial object are synchronously detected using a double-channel analogue-to-digital converter and then stored in a storage device in the form of general arrays of amplitude-phase reflections. From general arrays with parameters of reflected signals, partial samplings of reflections which are synchronous and have an equal number of elements (duration of the corresponding inverse synthesizing interval) are selected, from which complex spectral vectors of the Doppler portraits of the aerial object are generated by discrete Fourier transform, and envelopes thereof are selected, which enable to compare the behaviour of evolution of the structure of Doppler portraits obtained in radar station with different frequency.EFFECT: high quality of verifying identification capabilities of Doppler portraits of aerial objects.1 dwg |
