TY - GEN
T1 - Slow-time multi-frequency radar for target detection in multipath scenarios
AU - Sen, Satyabrata
AU - Nehorai, Arye
PY - 2010
Y1 - 2010
N2 - We propose a method to detect a target in the presence of multipath reflections, employing sequential transmission of multiple frequencies in a slow-time (pulse-to-pulse) approach. First, we develop a parametric measurement model that accounts for the multipath components at multiple frequencies as well as Doppler shifts. Then, we develop a statistical detection test and analytically evaluate its performance characteristics. Based on the performance analysis, we propose an adaptive algorithm to select the best combination from a subset of frequencies that maximizes the detection performance. Our numerical examples show that the sequential approach requires more coherent pulses to match the performance of the simultaneous usage of multiple carriers in OFDM format. We also study the extent of performance degradation due to employing a subset of available frequencies.
AB - We propose a method to detect a target in the presence of multipath reflections, employing sequential transmission of multiple frequencies in a slow-time (pulse-to-pulse) approach. First, we develop a parametric measurement model that accounts for the multipath components at multiple frequencies as well as Doppler shifts. Then, we develop a statistical detection test and analytically evaluate its performance characteristics. Based on the performance analysis, we propose an adaptive algorithm to select the best combination from a subset of frequencies that maximizes the detection performance. Our numerical examples show that the sequential approach requires more coherent pulses to match the performance of the simultaneous usage of multiple carriers in OFDM format. We also study the extent of performance degradation due to employing a subset of available frequencies.
KW - Generalized likelihood ratio test
KW - Multi-frequency radar
KW - Multipath reflection
KW - Slow time
KW - Target detection
UR - https://www.scopus.com/pages/publications/78049358033
U2 - 10.1109/ICASSP.2010.5496279
DO - 10.1109/ICASSP.2010.5496279
M3 - Conference contribution
AN - SCOPUS:78049358033
SN - 9781424442966
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2582
EP - 2585
BT - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010
Y2 - 14 March 2010 through 19 March 2010
ER -