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Optimal waveform design is an important technology for cognitive radar. Much effort has been focused on designing algorithms without target impulse response prediction and constant modulus constraint. In this paper, a new waveform design method is proposed, the next transmitted waveform could match the next target signature well. Since the radar systems commonly require constant modulus waveforms...
In this paper, we bring forward a new approach for SAR imaging using fractional Fourier transform (FRFT). For synthetic aperture radar (SAR), the echo from the ground can be regarded approximately as a chirp signal, and the FRFT is a powerful way to concentrate the energy of a chirp signal. A two stepSAR imaging algorithms is suggested, and experimental results show that the efficiency and accuracy...
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