Improved target detection with ultra wideband radars using efficient coded waveforms

  • Mohammed Elmashed
  • Salwa M. Serag EldinEmail author
  • Osama Zahran
  • Moawad I. Dessouky
  • Mohammed El-kordy
  • Fathi E. Abd El-Samie


Performance evaluation of ultra wideband (UWB) radar in terms of target detection, resolution, recognition, and clutter and interference rejection depends on the structure of the radar waveform. The chirp waveform, which is commonly used in radar applications, has high time sidelobes in the level of − 20 dB. Another limitation is the excessive range-Doppler cross coupling, which occurs, when the Doppler shifted signal is correlated with the original signal, and this gives a different time of arrival. In this paper, a wideband chirp-Gaussian waveform with phase coding is proposed to overcome these drawbacks. A mathematical formulation for the proposed waveform is introduced. Plots of the power spectral density, delay-Doppler Ambiguity Function (AF), and autocorrelation function are presented. These plots reveal that the chirp-Gaussian waveform reduces the sidelobe level to − 55 dB, and its AF has the property of low-level sidelobes resembling the “thumbtack” AF, the ideal ambiguity function for high resolution radar.


UWB radar Resolution Recognition Chirp-Gaussian Ambiguity function Thumbtack 


  1. Benedetto, J. J., & Donatelli, J. J. (2007). Ambiguity function and frame-theoretic properties of periodic zero-autocorrelation waveforms. IEEE Journal of Selected Topics Signal Process, 1(1), 6–20.CrossRefGoogle Scholar
  2. Benedetto, J. J., Konstantinidis, I. & Muralidhar, R. (2009). Phase-coded waveforms and their design. In IEEE signal processing magazine, pp. 22–31.Google Scholar
  3. Golomb, S. & Gong, G. (2005). Signal design for good correlation. Cambridge: Cambridge University Press.CrossRefzbMATHGoogle Scholar
  4. Hussain, M. G. M. (1998). Ultra-wideband impulse radar-an overview of the principles. IEEE Aerospace and Electronic systems Magazine, 13, 9–14.CrossRefGoogle Scholar
  5. Hussain, M. G. M. (2007a). Waveform design and modulation schemes for impulse communications and radar. In Proceedings of IEEE third international waveform diversity and design conference, Pisa, pp. 260–264.Google Scholar
  6. Hussain, M. G. M. (2007b). Waveform design and generalized ambiguity function for ultrawide and non sinusoidal signals. Electromagnetic Phenomena Journal, 7(81), 45–75.Google Scholar
  7. Hussain, M. G. M. (2008). Delay-Doppler ambiguity function of ultra wideband throb signals. IEEE International Conference on Ultrawideband, 2, 97–100.Google Scholar
  8. Immoreev, I. Y. (2009). Ultrawideband radars: Features and capabilities. Journal of Communications Technology and Electronics, 54(1), 1–26.CrossRefGoogle Scholar
  9. James, D. T. (Ed.) (2000). Ultra-wideband radar technology, Boca Raton, FL: CRC Press.Google Scholar
  10. Levenon, N. & Mozeson, E. (2004). Radar signals. New York: Wiley.CrossRefGoogle Scholar
  11. Lombardi, M. R. (2009). UWB radar signal capture and analysis. In Proceedings of the 6th European radar conference, pp. 389–392.Google Scholar
  12. Mahafza, B. R. (2005). Radar systems analysis and design using matlab (2nd edn.). Upper Saddle River: Chapman and Hall/CRC.zbMATHGoogle Scholar
  13. Noel, B. (1991). Ultra-wideband radar: Proceedings of the first Los Alamos symposium. Boca Raton, FL: CRC Press.Google Scholar
  14. Shirman, Y. D., Leshchenko, S. P. & Orlenko, V. M. (2003). Advantages and problems of wideband radar. Proceedings of International Radar Confererence, 1, 15–21.Google Scholar
  15. Wan, Y., Si, Q., Lu, Y. & Wang, X. (2007). Ultra-wideband radar signals generated technology with two channel. Science Direct Signal Processing, 87(12), 3101–3107.CrossRefzbMATHGoogle Scholar
  16. Yanovsky, F. J., & Sinitsyn, R. B. (2006). Ultrawideband signal processing algorithms for radars and sodars, In IEEE transactions of ultrawideband and ultrashort impulse signals, pp. 66–71.Google Scholar

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© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Department of Electronics and Electrical Communications, Faculty of Electronic EngineeringMenoufia UniversityMenoufEgypt
  2. 2.Elctronics and Electrical communication EngineeringTanta UniversityTantaEgypt
  3. 3.College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia

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