Target Distance Direct Determination from QPSK Mapped OFDM Modified Radar Signal

Authors

  • Khachatur Tovmasyan

  • arsen

OFDM, radar, constellation, signal processing, QPSK, time shift, target distance

Abstract

Time shift of the target reflected signal in radar system can be calculated directly from modified QPSK mapped OFDM signal. It makes possible to determine target distance from radar station. When time shift respecting to phase delay depends on OFDM subcarrier number, modified OFDM signal prevents that dependence and lets system to decide the phase delay directly from QPSK-OFDM signal rotation angle of constellation points. Additionally, proposed system requires low computing resources as the entire calculation process could be done during a single OFDM symbol.

How to Cite

Target Distance Direct Determination from QPSK Mapped OFDM Modified Radar Signal. (2014). Global Journal of Science Frontier Research, 14(29), 1-3. https://journalofscience.org/index.php/GJSFR/article/view/

References

Christian Henrik Schulze (2005) Theory and Applications of OFDM and CDMA: Wideband Wireless Communications. https://doi.org/10.1002/0470017406

J. Karlsson, O. Larsson (2009) SDR radar demonstrator using OFDM-modulation.

C.Sturm, E. Pancera, W. T. Zwick (2009) A novel approach to OFDM radar processing. 1-4. https://doi.org/10.1109/radar.2009.4977002

Yoke Sit, C. Sturm, T. Zwick (2011) Doppler Estimation in an OFDM Joint Radar and Communication System. 1-4.

A. Hakhoumian, Kh, E. Tovmasyan, Gabrielyan (2014) Doppler Shift Extraction from QPSK Mapped OFDM Signal Constellation. 2014, 39-43.

Leonard Joseph Cimini, Jr Howell, Bruce McNair, Holmdel (2005) Method for Estimating Time and Frequency Offset in an OFDM System. 1.

Target Distance Direct Determination from QPSK Mapped OFDM Modified Radar Signal

Published

2014-07-28

How to Cite

Target Distance Direct Determination from QPSK Mapped OFDM Modified Radar Signal. (2014). Global Journal of Science Frontier Research, 14(29), 1-3. https://journalofscience.org/index.php/GJSFR/article/view/