Interference cancellation for dynamic range Improvement in an OFDM joint radar and communication system

The OFDM joint radar and communication system uses communication signals as radar signals. In a realistic environment, the effects of the multipath-multiuser environment severely degrades the radar's dynamic range. Since the radar is capable of demodulating the interfering communication signals, they can then be subtracted from the reflected radar signal to improve its dynamic range. This paper explores two interference cancellation methods - serial and selective interference cancellation whereby their impact on the radar's performance is investigated.

[1]  Thomas Zwick,et al.  An OFDM System Concept for Joint Radar and Communications Operations , 2009, VTC Spring 2009 - IEEE 69th Vehicular Technology Conference.

[2]  Thomas Zwick,et al.  Extension of the OFDM joint radar-communication system for a multipath, multiuser scenario , 2011, 2011 IEEE RadarCon (RADAR).

[3]  Thomas Zwick,et al.  “Virtual Drive” physical layer simulations for Vehicle-to-Vehicle communication , 2010, 2010 URSI International Symposium on Electromagnetic Theory.

[4]  W. Wiesbeck,et al.  Capability of 3-D Ray Tracing for Defining Parameter Sets for the Specification of Future Mobile Communications Systems , 2006, IEEE Transactions on Antennas and Propagation.

[5]  Dmitriy Garmatyuk,et al.  Radar and data communication fusion with UWB-OFDM software-defined system , 2009, 2009 IEEE International Conference on Ultra-Wideband.

[6]  Thomas Zwick,et al.  Verification of an OFDM-based range and Doppler estimation algorithm with ray-tracing , 2011, 2011 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications.

[7]  Donald C. Cox,et al.  Robust frequency and timing synchronization for OFDM , 1997, IEEE Trans. Commun..

[8]  Thomas Zwick,et al.  A multiple target doppler estimation algorithm for OFDM based intelligent radar systems , 2010, The 7th European Radar Conference.