METHOD OF GROUND MAPPING OF ONBOARD RADAR IN FRONT REVIEW SECTOR Russian patent published in 2018 - IPC G01S13/89 

FIELD: radio engineering, communication.

SUBSTANCE: signal is coherently emitted and stored in the process of the antenna direction pattern beam scanning near the line of the side-looking airborne radar (SLAR) carrier path, when the antenna direction pattern beam, moving gently, covers the entire front sector, the accumulated signal is signal processed, namely by determining and compensating phase progression, determining the slew rate of signal frequency modulation, allocation of signals, accumulated on the left and right of the line of the side-looking airborne radar carrier path, signal spectral processing, multiplex of signals, accumulated on the left and right of the line of the carrier path, then the same area of Earth surface is again scanned with coherent accumulation of the reflected signal, the reaccumulated signal is processed similar to the first signal, while the allocation of signals with positive and negative slew rates of the frequency modulation is performed together with the compensation of phase difference relative to the first accumulated signal, after processing of both signals the obtained signal amplitude arrays are summed element by element and a radar image is formed from the total array of amplitudes.

EFFECT: increasing the azimuth resolution near the line of the side-looking airborne radar carrier path.

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