TY - GEN
T1 - Angle Estimation using Weighted Beampattern in Frequency Diverse Array Radar
AU - Shaiza, null
AU - Ali, Hussain
AU - Ahmed, Sajid
N1 - KAUST Repository Item: Exported on 2023-07-10
Acknowledgements: The author would like to acknowledge the support of this work by National University of Sciences and Technology (NUST) under project no. NUST-22-41-43.
PY - 2023/7/4
Y1 - 2023/7/4
N2 - The frequency diverse array (FDA) radar beampattern is a function of angle, time and range. Therefore, it has more potential applications in target localization. The transmit antenna elements weight design for illumination of a target present in a particular direction and range at a particular instance of time is important for target detection with large probability. In non-uniform weighted FDA radar, a desired transmit beampattern is achieved by using non-uniform weights at the transmit antenna elements using the IFFT algorithm. The IFFT algorithm provides a closed-form solution for transmitting antenna weights. The designed transmit beampattern has a large dwell time and has the potential to illuminate any desired angular region. In this work, a signal model is derived for non-uniform weighting and angle estimation is performed using the minimum-power-distortionless response beamformer at the receiver. The Cramer-Rao lower bound (CRLB) for the FDA radar has been derived. We compared the mean-square-error performance of angle estimation with existing approaches and CRLB.
AB - The frequency diverse array (FDA) radar beampattern is a function of angle, time and range. Therefore, it has more potential applications in target localization. The transmit antenna elements weight design for illumination of a target present in a particular direction and range at a particular instance of time is important for target detection with large probability. In non-uniform weighted FDA radar, a desired transmit beampattern is achieved by using non-uniform weights at the transmit antenna elements using the IFFT algorithm. The IFFT algorithm provides a closed-form solution for transmitting antenna weights. The designed transmit beampattern has a large dwell time and has the potential to illuminate any desired angular region. In this work, a signal model is derived for non-uniform weighting and angle estimation is performed using the minimum-power-distortionless response beamformer at the receiver. The Cramer-Rao lower bound (CRLB) for the FDA radar has been derived. We compared the mean-square-error performance of angle estimation with existing approaches and CRLB.
UR - http://hdl.handle.net/10754/692839
UR - https://ieeexplore.ieee.org/document/10165115/
U2 - 10.1109/comtech57708.2023.10165115
DO - 10.1109/comtech57708.2023.10165115
M3 - Conference contribution
BT - 2023 International Conference on Communication Technologies (ComTech)
PB - IEEE
ER -