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New and Less Complex Approach to Estimate Angles of Arrival
2017Accurate angle/direction of arrival (AOA/DOA) estimation is an important issue which, helps mobile communications, wireless positioning and signal processing systems to improve their performance significantly. This paper proposes a new method to estimate the direction of arrival of signals. The proposed estimator is dependent on applying the eigenvalue
Mohammed A. G. Al-Sadoon +6 more
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Stochastic optimization methods for angle of arrival estimation
2007 IEEE Sarnoff Symposium, 2007The difficulty for accurate determination of the angles of arrival (AOA) of signals arises from the optimization of likelihood functions of high dimension. Usually, a gradient-based technique is employed to find the optimum of the function. However, this method requires heavy computational work and the differentiability of the likelihood function. This
Hai H. Hoang +3 more
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Cluster Angle-of-Arrival Estimation for UWB Indoor System
IEICE Transactions on Communications, 2005In this study, the new signal model suitable for ultrawide band (UWB) indoor environments with random angle spread is proposed to estimate the angle-of-arrivals (AOAs) of clusters in a UWB wireless communication. The subspace based estimation technique adopted for this model is investigated and the estimates of the AOA and distribution parameter on the
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Estimating angles of arrivals in the presence of mutual coupling
1987 Antennas and Propagation Society International Symposium, 2005In this paper, we examine the eigenstructure of the covariance matrix of an antenna array under mutual coupling and show that its distortion can be properly compensated by using a modified search vector in performing estimations. Computer simulation results are presented. They validate our analysis. FORMULATION Let us consider the problem of estimating
null Chien-Chung Yeh, null Maw-Lin Leou
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Angle of Arrival Estimation for Non-Circular Signals
2006 IEEE Sarnoff Symposium, 2006A new algorithm is introduced in this paper that estimates one dimension direction of arrivals utilizing coherent and noncoherent non-circular sources. Examples of such sources are binary shift keying (BPSK) and M-ary amplitude shift keying (MASK). This algorithm presents several advantages over the classical subspace algorithms such as Root MUSIC and ...
Amjad Salameh, Nizar Tayem
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Estimation of angles of arrivals of multiple wideband sources
Antennas and Propagation Society Symposium 1991 Digest, 2002The authors have developed a data transformation matrix for the estimation of directions of arrival for multiple wideband sources when prior information about the source locations is not available. The proposed focusing matrix minimizes the average of the squared norm of focusing error over the angles of interest without prior knowledge of source ...
W. Hong, A.H. Tewfik
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Angle of Arrival Estimation for Saturated Acoustic Signals
2013Abstract : The U.S. Army Research Laboratory (ARL) has developed a tetrahedral microphone array system for acoustic-based target detection and localization. Time-domain data can be used to obtain differential time of arrival (DTOA) and angle of arrival (AOA) estimates. Use of multiple arrays allows for triangulation.
Geoffery H. Goldman +2 more
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Angle-of-Arrival Estimation With Practical Phone Antenna Configurations
IEEE Internet of Things Journal, 2023Shang-Ling Shih +3 more
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Angle of Arrival Estimation in the Presence of Phase Difference Ambiguities
2022 IEEE 12th International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2022Marcel Müller, Christof Röhrig
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Quantum-enhanced angle-of-arrival pre-estimation of radio-frequency signals
Optics and Laser Technology, 2023Long Tian, Yajun Wang, Chuanliang Li
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