Multi-rate convolution for LFM and NLFM

Farshchian, Masoud; Coxson, Gregory E.

doi:10.1109/radar.2009.4977019

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2015

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“…Such NLFM waveforms have been investigated in the open literature (e.g. [3,6,8,12,13,16,17]) for the case of conventional matched filtering.…”

Section: Introductionmentioning

confidence: 99%

Low-rate sampling technique for range-windowed radar/sonar using nonlinear frequency modulation

Mir

Wong

2015

IEEE Trans. Aerosp. Electron. Syst.

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This paper proposes a new radar/sonar processing architecture that enables a low-rate time-sampling rate while still producing a high-resolution range profile over a narrow range-window. This new architecture generalizes the conventional "stretch processing" architecture (which employs linear frequency modulated (LFM) waveforms that suffer from high range-sidelobes), to nonlinear frequency modulated (NLFM) waveforms, which can lower the range-sidelobes without tapering. Computational results demonstrate both the estimation efficacy and the time-sampling efficiency of the proposed scheme.

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“…Such NLFM waveforms have been investigated in the open literature (e.g. [3,6,8,12,13,16,17]) for the case of conventional matched filtering.…”

Section: Introductionmentioning

confidence: 99%