Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By S. Qiao, Z.-G. Shi, T. Jiang, and L.-X. Ran

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In this paper, we present a new scheme for the realization of a wide-band chaotic RADAR system. The remarkable characteristics of such scheme are: (1) Wide-band chaotic signal generated from microwave chaotic Colpitts oscillator is directly used as the RADAR signal; (2) Chaos synchronization is used to recover the chaotic signal from the back-scattered signal by targets; (3) The intrinsic sensitivities of the chaotic signal to the parameters of the chaotic circuit and to the initial conditions are used to realize the "multi-user" property. System simulations show that such RADAR can still work in an environment when the signal-to-noise ratio (SNR) is lower than −20dB.

Citation: (See works that cites this article)
S. Qiao, Z.-G. Shi, T. Jiang, and L.-X. Ran, "A New Architecture of UWB Radar Utilizing Microwave Chaotic Signals and Chaos Synchronization," Progress In Electromagnetics Research, Vol. 75, 225-237, 2007.

1. Wang, S., X. Guan, D. Wang, X. Ma, and Y. Su, "Fast calculation of wide-band responses of complex radar targets," Progress In Electromagnetics Research, Vol. 68, 185-196, 2007.

2. Alyt, O. M., A. S. Omar, and A. Z. Elsherbeni, "Detection and localization of RF radar pulses in noise environments using wavelet packet transform and higher order statistics," Progress In Electromagnetics Research, Vol. 58, 301-317, 2006.

3. Zang, W., Z. G. Shi, S. C. Du, and K. S. Chen, "Novel roughening method for reentry vehicle tracking using particle filter," J. of Electromagn. Waves and Appl., Vol. 21, No. 14, 1969-1981, 2007.

4. Roy, R., "Chaos down the line," Nature, Vol. 438, 2005.

5. Argyris, A., et al., "Chaos-based communications at high bit rates using commercial fibre-optic links," Nature, Vol. 438, 343-346, 2005.

6. Shen, Y., W. H. Shang, and G. S. Liu, Ambiguity function of chaotic phase modulated radar signals, IEEE Fourth International Conference on Signal Processing Proceedings, Vol. 2, 1574-1577, 1998.

7. Liu, G. S., H. Gu, and W. M. Su, "Development of random signal radars," IEEE Transactions on Aerospace and Electronic Systems, Vol. 35, No. 3, 770-777, 1999.

8. Weinberg, G. V. and A. Alexopoulos, "Examples of a class of chaotic radar signals," Defence Science and Technology Organisation, No. 8, 2005.

9. Hara, Y., et al., Development of a chaotic signal radar system for vehicular collision-avoidance, Proceeding of IEEE Radar Conference, 227-232, 2002.

10. Lin, F. Y. and J. M. Liu, "Chaotic radar using nonlinear laser dynamics," IEEE J. Quantum Electron., Vol. 40, No. 6, 815-820, 2004.

11. Fortuna, L., M. Frasca, and A. Rizzo, "Chaotic pulse position modulation to improve the efficiency of sonar sensors," IEEE Transactions on Instrumentation and Measurement, Vol. 52, No. 6, 1809-1814, 2003.

12. Barahona, M. and C. S. Pooh, "Detection of nonlinear dynamics in short, noisy time series," Nature, Vol. 381, 215-217, 1996.

13. Tsonis, A. A. and J. B. Elsner, "Nonlinear prediction as a way of distinguishing chaos from random fractal sequences," Nature, Vol. 358, 217-220, 1992.

14. Haykin, S. and X. B. Li, Detection of signals in chaos, Proceedings of the IEEE, Vol. 83, No. 1, 94-122, 1995.

15. Mykolaitis, G., A. Tamasevicius, and S. Bumeliene, "Experimental demonstration of chaos from Colpitts oscillator in VHF and UHF ranges," Electronics Letters, Vol. 40, No. 2, 91-92, 2004.

16. Shi, Z. G. and L. X. Ran, "Microwave chaotic Colpitts resonator: design, implementation and applications," J. of Electromagn. Waves and Appl., Vol. 20, No. 10, 1335-1349, 2006.

17. Kennedy, M. P., "Chaos in the Colpitts oscillator," IEEE Transactions on Circuits and Systems, Vol. 41, No. 11, 771-774, 1994.

18. Maggio, G. M., O. D. Feo, and M. P. Kennedy, "Nonlinear analysis of the Colpitts oscillator and applications to design," IEEE Trans. Circuits and Systems-I, Vol. 46, No. 9, 1118-1130, 1999.

19. Shi, Z. G. and L. X. Ran, "Design of chaotic Colpitts oscillator with prescribed frequency distribution," International Journal of Nonlinear Science and Numerical Simulation, Vol. 5, No. 1, 89-94, 2004.

20. Shi, Z. G., Y. Zhang, H. W. Liu, and L. X. Ran, "Randomness test of signal generated by microwave chaotic Colpitts oscillator," Microwave and Optical Technology Letters, Vol. 49, No. 8, 1981-1984, 2007.

21. Kolumban, G., M. P. Kennedy, and L. O.Chua, "The role of synchronization in digital communication using chaos-part II," IEEE Trans. Circuits and Systems-I, Vol. 45, No. 11, 1129-1140, 1998.

22. Pecora, L. M. and T. L. Carroll, "Driving systems with chaotic signals," Physical Review A, Vol. 44, No. 4, 2374-2383, 1991.

23. Shi, Z. G., L. X. Ran, and K. S. Chen, "Error feedback synchronization of chaotic Colpitts Circuit," the 46th IEEE MWSCAS, Vol. 1, 225-228, 2003.

24. Shi, Z. G., L. X. Ran, and K. S. Chen, "Multiplexing chaotic signals generated by Colpitts oscillator and Chua circuit using dual synchronization," Chinese Physics Letters, Vol. 22, No. 6, 1336-1339, 2005.

25. Shi, Z. G., J. T. Huangfu, and L. X. Ran, "Performance comparison of two synchronization schemes for Colpitts circuits based chaotic communication system over noisy channel," The 5th World Congress on Intelligent Control and Automation, Vol. 6, 1276-1279, 2004.

26. Myneni, K. and T. A.Thomas, "New method for the control of fast chaotic oscillations," Physical Review Letters, Vol. 83, No. 11, 175-2178, 1999.

27. Sharma, N. and E. Ott, "Synchronization-based noise reduction method for communication," Physical Review E, Vol. 58, No. 6, 8005-8008, 1998.

28. Li, Y. and B. J. Yang, Introduction to Detection of Chaotic Attractors, Publishing House of Electronics Industry, 2004.

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