volume | PIER Journals

Abstract

With the growth of broadband wireless technology like code division multiple access (CDMA) and ultra-wideband (UWB), lots of development and efforts towards wireless communication system and imaging radar system are well justified. Efforts are also being imparted towards a convergence technology involving both communication and radar technology which will result in intelligent transport system (ITS) and other applications. The authors have tried to converge the communication technologies towards radar and to achieve the interference free and clutter free quality remote images of targets using DS-UWB wireless technology. In this paper, we propose a direct sequence spread spectrum (DSSS) radar for remote sensing in ITS system. We have successfully detected single target using 1D radar imaging, and also separated multiple targets and implemented DSSS radar using software defined radio (SDR) to get continuous connectivity of the system. Authors have sought down the limitations of DSSS radar which according to them can be solved by using adaptive equalizer and rake processing.

1. Jones, W. D., "Building safer cars," IEEE Spectrum, Vol. 39, No. 1, January 2002.
doi:10.1109/6.975028

2. National Highway Traffic Safety Administration "Automotive Collision Avoidance Systems (ACAS) Final Report,", August 2000.

3. Review of National Automated Highway Research Program, 1998.

4. Enke, K., "Possibilities for improving safety within the driver vehicle environment control loop," Proceedings of the 7th International Technological Conference on Experimental Safety Vehicles, 789-802, 1979.

5. Johnson, C. M., "Eight step towards a smarter national highway system," Proceedings of the International Technological Conference on Public Roads Online Intelligent Transportation, Vol. 60, No. 2, 1996.

6. Wang, X. and B. Du, "Particle swarm optimization based on intelligent transport system," Science and Technology Information, Vol. 15, 357-364, 2008.

7. Zhou, L., Y. Chen, and M. Jiang, "The design of city intelligent traffic signal control system," Automation and Instrumentation, Vol. 6, 37-40, 2006.

8. Mizui, K., M. Uchida, and M. Nakagawa, "Vehicle-to-vehicle communications and ranging system using spread spectrum technique," Trans. IEICE (B-II), J78-B-II, Vol. 5, 342-349, 1995.

9. Taylor, J. D., Ultra Wideband Radar Technology, CRC Press, 2001.

10. Kondo, S. and L. B. Milstein, "Performance of multicarrier DS CDMA systems," IEEE Transactions on Communications, Vol. 44, No. 2, February 1996.
doi:10.1109/26.486616

11. Simon, M. K., J. K. Omura, R. A. Scholtz, and B. K. Levitt, SPREAD SPECTRUM Communications Handbook, McGraw-Hill, 2002.

12. Milstein, L. B., "Interference rejection techniques in spread spectrum communications," Proceedings of the IEEE, Vol. 76, 657-671, 1988.
doi:10.1109/5.4455

13. Rahman, M. and P. Ernstrom, "Repeaters for hotspot capacity in DSCDMA networks," IEEE Trans. Veh. Technol., Vol. 53, No. 3, 626-633, May 2004.
doi:10.1109/TVT.2004.825701

14. Torrieri, D. J., "Fundamental limitations on repeater jamming of frequency-hopping communications," IEEE J. Sel. Areas Commun., Vol. 7, 569-575, 1989.
doi:10.1109/49.17721

15. Milstein, L. B., "Interference rejection techniques in spread spectrum communications," Proc. IEEE, Vol. 76, 657-971, June 1988.
doi:10.1109/5.4455

16. Ketchum, J. W. and J. G. Proakis, "Adaptive algorithm for estimating and suppressing narrowband interference in PN spread spectrum systems," IEEE Transactions on Communications, Vol. 30, No. 5, 913-924, May 1982.
doi:10.1109/TCOM.1982.1095542

17. Milstein, L. B. and R. A. Iltis, "Signal processing for interference rejection in spread spectrum communications," IEEE ASSP Mag., Vol. 3, 18-31, April 1986.

18. Li, L. and L. B. Milstein, "Rejection of pulsed CW interference in PN spread spectrum signals using complex adaptive filters," IEEE Transactions on Communications, Vol. 31, No. 1, 10-20, January 1983.
doi:10.1109/TCOM.1983.1095722

19. Li, L. and L. B. Milstein, "Rejection of narrow band interference in PN spread spectrum signals using transversal filters," IEEE Transactions on Communications, Vol. 30, No. 5, 925-928, May 1982.
doi:10.1109/TCOM.1982.1095543

20. Doherty, J. F., "Linearly constrained direct-sequence spread-spectrum interference rejection," IEEE Transactions on Communications, Vol. 42, 865-871, February-April 1994.

21. Gandhi, T. and M. M. Trivedi, "Pedestrian collision avoidance Systems: A survey of computer vision based recent studies," Proceedings of the IEEE ITSC 2006, 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006.

22. Roe, H. and G. S. Hobson, "Improved discrimination of microwave vehicle profiles," Proc. IEEE MTT-S Int. Microw. Symp., 717-720, June 1-5, 1992.

23. Walton, E. K., I. P. Theron, S. Gunawan, and L. Cai, "Moving vehicle range profiles measured using a noise radar," Proc. IEEE Antennas and Propag. Soc. Int. Symp., Vol. 4, 2597-2600, 1997.

24. Cherniakov, M., R. S. A. R. Abdullah, P. Jancovic, and M. Salous, "Forward scattering micro sensor for vehicle classification," Proc. RADAR Conf., 184-189, 2005.

25. Park, S. J., T. Y. Kim, S. M. Kang, and K. H. Koo, "A novel signal processing technique for vehicle detection radar," Proc. IEEE MTT-S Int. Microw. Symp., Vol. 1, 607-610, 2003.

26. Jahangir, M., K. M. Ponting, and J. W. O'Loghlen, "Robust Doppler classification technique based on hidden markov models," Proc. Inst. Electr. Eng. Radar Sonar Navig., Vol. 150, No. 1, 33-36, February 2003.
doi:10.1049/ip-rsn:20030027

27. Urazghildiiev, I., R. Ragnarsson, K. Wallin, A. Rydberg, P. Ridderstrom, and E. Ojefors, "A vehicle classification system based on microwave radar measurement of height profiles," Proc. RADAR Conf., 409-413, 2002.

Dr. Nirmalendu Sinha

Mr. Manish Sonal

Professor Rabindra Nath Bera

Dr. Monojit Mitra