scholarly journals Frequency and 2D Angle Estimation Based on a Sparse Uniform Array of Electromagnetic Vector Sensors

2006 ◽  
Vol 2006 (1) ◽  
Author(s):  
Fei Ji ◽  
Sam Kwong
Keyword(s):  
Angle Estimation ◽  
Vector Sensors ◽  
Uniform Array

scholarly journals Angle Estimation and Mutual Coupling Self-Calibration in Bistatic MIMO System with Arbitrary Geometry

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Tingping Zhang ◽  
Di Wan ◽  
Xinhai Wang ◽  
Fangqing Wen
Keyword(s):  
Mutual Coupling ◽  
Mimo System ◽  
Multiple Input Multiple Output ◽  
Property A ◽  
Angle Estimation ◽  
Self Calibration ◽  
Direction Of Departure ◽  
Input Multiple Output ◽  
Uniform Array ◽  
Sensor Geometry

Ideal array responses are often desirable to a multiple-input multiple-output (MIMO) system. Unfortunately, it may not be guaranteed in practice as the mutual coupling (MC) effects always exist. Current works concerning MC in the MIMO system only account for the uniform array geometry scenario. In this paper, we generalize the issue of angle estimation and MC self-calibration in a bistatic MIMO system in the case of arbitrary sensor geometry. The MC effects corresponding to the transmit array and the receive array are modeled by two MC matrices with several distinct entities. Angle estimation is then recast to a linear constrained quadratic problem. Inspired by the MC transformation property, a multiple signal classification- (MUSIC-) like strategy is proposed, which can estimate the direction-of-departure (DOD) and direction-of-arrival (DOA) via two individual spectrum searches. Thereafter, the MC coefficients are obtained by exploiting the orthogonality between the signal subspace and the noise subspace. The proposed method is suitable for arbitrary sensor geometry. Detailed analyses with respect to computational complexity, identifiability, and Cramer-Rao bounds (CRBs) are provided. Simulation results validate the effectiveness of the proposed method.

Central Angle Estimation of Distributed Targets with Electric Vector Sensors in MIMO Radar

2015 ◽  
Vol E98.B (10) ◽  
pp. 2060-2067
Author(s):  
Wei WANG ◽  
Ben WANG ◽  
Xiangpeng WANG ◽  
Ping HUANG
Keyword(s):  
Mimo Radar ◽  
Electric Vector ◽  
Central Angle ◽  
Angle Estimation ◽  
Vector Sensors

Sensorless Angle Estimation Method for Brushed DC Motor using Impedance Variation by Contact Switching

2017 ◽  
Vol 137 (11) ◽  
pp. 827-836
Author(s):  
Yuki Saito ◽  
Kazuma Nakai ◽  
Hiromu Sekiguchi ◽  
Satoshi Fukushima ◽  
Takahiro Nozaki ◽  
...  
Keyword(s):  
Estimation Method ◽  
Dc Motor ◽  
Angle Estimation ◽  
Impedance Variation

Fast Angle Estimation Algorithm of Coherently Distributed Targets for Bistatic MIMO Radar

2011 ◽  
Vol 33 (7) ◽  
pp. 1684-1688
Author(s):  
Yi-duo Guo ◽  
Yong-shun Zhang ◽  
Lin-rang Zhang ◽  
Ning-ning Tong
Keyword(s):  
Estimation Algorithm ◽  
Mimo Radar ◽  
Angle Estimation ◽  
Bistatic Mimo Radar
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