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Concurrent Extraction of Target Range and Doppler Information by Using Orthogonal Coding Waveforms

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3 Author(s)
Hai Deng ; North Texas Univ., Denton ; Himed, B. ; Wicks, M.C.

In this paper, a novel approach for concurrent extraction of target range and Doppler information in radar systems is introduced. A pair of orthogonal waveforms with different pulse repetition frequencies (PRF) are bundled and transmitted as a single hybrid radar waveform for target measurement. At the receiver, two orthogonal signal processing channels consisting of a low PRF (LPRF) channel and a high PRF (HPRF) one, perform the extraction of target range and Doppler information, respectively. The CLEAN algorithm is innovatively used to suppress the interference from the cross-correlation residues and the autocorrelation sidelobe in the LPRF channel. The processing results, based on the proposed signal processing approach, demonstrate the technical feasibility of implementing such a signal processing scheme in radar systems.

Published in:

Signal Processing, IEEE Transactions on  (Volume:55 ,  Issue: 7 )