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W pracy przedstawiono autorski algorytm detekcji i estymacji parametrów impulsowych sygnałów radarowych z liniową i nieliniowej modulacją częstotliwości. Głównymi założeniami działania algorytmu są: brak informacji o częstotliwościach na których nadawany jest sygnał; niski dopuszczalny stosunek sygnału do szumu; założenie, że modulację w częstotliwości sygnału można przybliżyć wielomianem znanego...
A new precise estimator for use in along-track velocity parameter estimation is presented in this letter. The proposed solution effectively determines flight parameters without using an iterative procedure for the autofocus coherent MapDrift (CMD) algorithm. The CMD technique is a coherent method allowing flight parameters to be determined more precisely than in another well-known autofocus noncoherent...
A novel fast technique for along-track motion parameter estimation of moving targets detected using SAR mode is presented in the paper. The proposed technique is based on the features of Non Iterative Map-Drift (NIMD) technique. Typically NIMD is used as an autofocus technique in classical SAR processing to obtain high resolution SAR images. The main goal of this paper was to extend and test NIMD...
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