TY - GEN
T1 - Analysis of sparse co-prime sensing array performance using wideband noise signals
AU - Alexander, David B.
AU - Narayanan, Ram M.
AU - Himed, Braham
N1 - Funding Information:
This work was supported by the Air Force Research Laboratory Contract # FA8650-12-D-1376 through Defense Engineering Corporation Task Order 0004.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/2
Y1 - 2017/7/2
N2 - A pair of co-prime receiving arrays with sparse inter-element spacing is capable of sampling a wide sense stationary signal at a set of points more densely relative to the element spacing. The properties of co-prime arrays make them attractive options for use in radar systems. In this paper, two-dimensional lattices are generated from a pair of co-prime matrices with array elements placed on these lattices. The transmission, reflection off of a target, and reception of signals by these arrays were simulated for both narrowband and wideband signals. Two waveform types were simulated. These include band-limited Gaussian noise, along with chirp waveforms so that the noise waveform performance could be assessed relative to a more traditional radar waveform. Several parameters were tested to measure the performance of the co-prime sensing arrays for the two signal types. First, the peak cross-correlation between the transmitted and received signals was studied over a range of signal bandwidths. Additionally, the quality of the arrays' estimation of the incidence direction of arrival (DOA) was determined. It was found that the band-limited noise waveforms demonstrated comparable performance to chirp signals with equivalent bandwidth. Additionally, it was found that multi-dimensional co-prime arrays were able to generate very accurate DOA estimations for both signal types.
AB - A pair of co-prime receiving arrays with sparse inter-element spacing is capable of sampling a wide sense stationary signal at a set of points more densely relative to the element spacing. The properties of co-prime arrays make them attractive options for use in radar systems. In this paper, two-dimensional lattices are generated from a pair of co-prime matrices with array elements placed on these lattices. The transmission, reflection off of a target, and reception of signals by these arrays were simulated for both narrowband and wideband signals. Two waveform types were simulated. These include band-limited Gaussian noise, along with chirp waveforms so that the noise waveform performance could be assessed relative to a more traditional radar waveform. Several parameters were tested to measure the performance of the co-prime sensing arrays for the two signal types. First, the peak cross-correlation between the transmitted and received signals was studied over a range of signal bandwidths. Additionally, the quality of the arrays' estimation of the incidence direction of arrival (DOA) was determined. It was found that the band-limited noise waveforms demonstrated comparable performance to chirp signals with equivalent bandwidth. Additionally, it was found that multi-dimensional co-prime arrays were able to generate very accurate DOA estimations for both signal types.
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U2 - 10.1109/ACSSC.2017.8335530
DO - 10.1109/ACSSC.2017.8335530
M3 - Conference contribution
AN - SCOPUS:85051032791
T3 - Conference Record of 51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
SP - 1147
EP - 1151
BT - Conference Record of 51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
A2 - Matthews, Michael B.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 51st Asilomar Conference on Signals, Systems and Computers, ACSSC 2017
Y2 - 29 October 2017 through 1 November 2017
ER -