Intra-Period Signal Processing in a Synthetic Aperture Radar

Autor: Chernoyarov, Oleg V., Ivanov, Vladimir A., Salnikova, Alexandra V., Slepneva, Marina A.
Rok vydání: 2022
Předmět:
DOI: 10.5281/zenodo.7562049
Popis: One introduces a technique for solving the problem of a synthetic aperture radar tracking when the model of the reflected signal in the form of a discrete normal random process is applied. It is shown that, in a general case, the optimal processing of the signals reflected from the resolved surface element should consist in multichannel linear filtering using the weight coefficients that are generated accounting for the correlation properties of the reflected signal and the receiver noise. The processing procedure should also include the calculation of the linear filter output signal power, followed by the weighting summation of the results. These operations are carried out in terms of the problem of an intra-period processing of the chirp signals in a synthetic aperture radar. The maximum achievable values of the radiometric resolution and the relative level of interfering signals from the surrounding surface elements have been determined for the optimal processing of the chirp signal. The results obtained can be used while designing the promising signal processing devices incorporated in a synthetic aperture radar.
Databáze: OpenAIRE