Improvement of DOD/DOA Estimation for Bistatic MIMO Radar
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In this paper, we apply the Newton-type method for the optimization of cost functions for spectrum estimation-based bistatic DOD (direction of departure)/DOA (direction of arrival) estimation algorithm of the bistatic conventional beamforming and the bistatic capon beamforming algorithm in the bistatic MIMO radar system. Explicit expressions of the first derivatives and the second derivatives of the cost functions are presented. The Newton-type search for simultaneous update of the DOD/DOA based on the gradient and the Hessian of the cost function is also presented. The performance improvement in terms of estimation accuracy is demonstrated using the Monte–Carlo simulations.
KeywordsBistatic MIMO radar system DOD (direction of departure) DOA (direction of arrival) Newton-type search Bistatic conventional beamforming Bistatic capon beamforming
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1D1A1B07048294).
- 1.H. Miao, M. Juntti, K. Yu (2006) 2–D unitary ESPRIT based joint AOA and AOD estimation for MIMO system, personal, indoor and mobile radio communications. In: 2006 IEEE 17th international symposium on, December 2006Google Scholar
- 8.Lee JH, Cho SW, Jeong SH (2013) Application of the Levenberg–Marquardt scheme to the MUSIC algorithm for AOA estimation. Int J Antennas Propag 2013:1–8Google Scholar
- 13.Wang Yali, Liu Zhiguo (2015) Joint DOD and DOA estimation using 2-D unitary esprit for bistatic MIMO radar. IET Int Radar Conf 2015:1–6Google Scholar