Improved Compound Multiphase Waveforms with Additional Amplitude Modulation (periodic mode) for Marine Radars

Abstract

This paper has presented the basis of a compound multiphase waveform design with additional amplitude modulation, capable of controlling a waveform pick-factor, suitable for use with marine radar. The waveform shows good Doppler tolerance, with the low side-lobes performance maintained over the central zone of an ambiguity function. A clear waveform design procedure has been presented that does not require the implementation of numerical optimization procedures. It has been shown that a compromise between side-lobes suppression and the value of pick-factor can be found. These waveforms allow achieving better results as compared to compound multiphase waveforms without additional amplitude modulation under mismatched weighting filtering. In this article we considered periodic mode of Radar 

Keywords

• composite signal,ambiguity function,cross-ambiguity function,amplitude modulation,periodic mode

References

1. V.M. Koshevyy. Synthesis of Waveform-Filter pairs under Additional Constrains with Group-Complementary Properties IEEE, Radar Conference 2015, May 2015, Arlington,VA (USA), pp 0616-0621.
2. V.M. Koshevyy, Synthesis compound multiphase signals, Izvestiya VUZ. Radioelectronika (Radioelectronics and Communication Systems), vol. 31, N8, 1988, pp. 56-58.
3. V. Koshevyy & O. Pashenko, Improved Compound Multiphase Waveforms with Additional Amplitude Modulation (periodic mode) for Marine Radars, Marin Navigation and Safety of Sea Transportation. Activities in Navigation, 2017 [to be published].
4. V.M. Koshevyy, V.I. Kuprovskyy. Investigation of properties of compound multiphase signals.Izvestiya VUZ. Radioelectronika (Radioelectronics and Communication Systems), N8, 1991, pp. 63-66.
5. Ch.E. Cook, M. Bernfeld, Radar Signals. An Introduction to Theory and Application, Artech House, Inc., Boston 1993.
6. B.L. Lewis, F.F. Kretschmer, Linear frequency modulation derived polyphase pulse compression codes, IEEE Trans. on Aerospace and Electronic Systems Vol. AES-18, N5, Sept. 1982, pp. 637-641.
7. N. Levanon, E. Mozeson, Radar signals, J. Wiley, NJ, 2004.
8. V. Koshevyy & O. Pashenko, Signal Processing Optimization in the FMCW Navigational Radars, Marin Navigation and Safety of Sea Transportation. Activities in Navigation. (edited) Adam Weintrit. CRC Press. 2015 pp. 55-60