A New Approach to Compress Multicarrier Phase-Coded Radar Signals
Subject Areas : electrical and computer engineeringR. mohseni 1 , a. sheikhi 2 , m.a. masnadi shirazi 3
1 -
2 -
3 -
Keywords: Multicarrier radarsMCPC signalsOFDM radarsCompressionChannel estimation,
Abstract :
Multicarrier phase coded signals have been recently introduced to achieve high range resolution in radar systems. As single carrier phase coded radars, the common method for compression of these signals, is using matched filter or computing the auto correlation function directly. In this paper we propose a new method based on fast Fourier transform (FFT) with lower computational load with respect to traditional approach. Furthermore, based on this new approach, a method for estimation of communication channel is introduced that can be used for improving detection performance and target position estimation in tracking mode.
[1]M. Jankiraman, B. J. Wessels, and P. V. Genderen, "Design of a multifrequency FMCW radar," in Proc. of 28th European Microwave Conf., vol. 1, pp. 584-589, Amsterdam, Oct. 1998.
[2]N. Levenon, "Multifrequency radar signals," in Proc. of IEEE Int. Radar Conf., pp. 683-688, May 2000.
[3]N. Levenon, "Multifrequency complementary phase-coded radar signal," IEE Proc. Radar, Sonar Navig., vol. 147, no. 6, pp. 276-284, Dec. 2000.
[4]E. Mozeson and N. Levenon, "Multicarrier radar signals with low peak - to - mean envelope ratio," in IEE Proc. Radar, Sonar Navig., vol. 150, no. 2, pp. 71-77, Apr. 2003.
[5]N. Levenon and E. Mozeson, "Multicarrier radar signal-pulse train and CW," IEEE Trans. AES, vol. 38, no. 2, pp. 707-720, Apr. 2002.
[6]N. Levenon, "Train of diverse multifrequency radar pulses," in Proc. ofIEEE Radar Conf., pp. 93-98, May 2001.
[7]N. N. S. S. R. K. Prasad, V. Shameem, U. B. Desai, and S. N. Merchant, "Improvement in target detection performance of pulse coded Doppler radar based on multicarrier modulation with fast Fourier transform (FFT)," in IEE Proc. Radar Sonar Navig. , vol.151, no. 1, pp. 11-17, Feb. 2004.
[8]S. P. Singh and K. S. Rao, "Pulse train of multicarrier complementary phase coded radar signal for favourableautocorrelation and ambiguity function," in Proc.Int. Conf. on Systemics, Cybernetics, and Informatics, ICSCI 2005, pp. 76-80, Jan. 2005.
[9]G. E. A. Franken, H. Nikookar, and P. Van Gendern," Doppler tolerance of OFDM-coded radar signals," in Proc. of the 3rd European Radar Conf., pp. 108-111, Sep. 2006.
[10]N. Levenon and E. Mozeson, Radar Signals, John Wiley & Sons, Inc., New York, 2004.
[11]A. V. Oppenheim and R. W. Schafer, Discrete Time Signal Processing, Prentice Hall, 1999.