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Waveform analysis for high-frequency FMICW radar

Waveform analysis for high-frequency FMICW radar

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The paper describes the waveform analysis for an experimental long-range highfrequency radar system with a design capability for over-the-horizon detection of ocean surface targets up to 400 km from shore with a range resolution of 400 m. Motivated by the need to maximise the transmitter duty cycle in order to detect long-range targets, the radar is based on a frequency modulated interrupted continuous wave (FMICW) type waveform. The interrupt sequence, which is necessary for a high power monostatic operation, complicates the analysis of the radar performance in terms of the ambiguity function (AF). This paper analyses the range dependent AF of FMICW waveforms and proposes practical interrupt sequences for the synthesis of desired AFs.

References

    1. 1)
      • C-CORE/MUN Report, Proposed Northern Radar Systems Limited ground wave radar, Memorial University of Newfoundland, 1987.
    2. 2)
      • A.W. Rihaczek . (1969) , Principles of high resolution radar.
    3. 3)
      • Barrick, D.E.: `FM/CW radar signals and digital processing', ERL 283-WPL 26, NOAA Tech. Rep, 1973.
    4. 4)
      • M.I. Skolnik . (1970) , Radar handbook.
    5. 5)
      • Shearman, E.D.R., Burrows, G.D., Moorhead, M.D.: `An FMICW ground-wave radar for remote sensing of ocean waves and currents', IEE Conference Radar 87, 1987, London.
    6. 6)
      • A.W.V. Poole . On the use of pseudorandom codes for “chirp” radar. IEEE Trans. , 480 - 485

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content/journals/10.1049/ip-f-2.1991.0054
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