Study of 2D DOA Estimation for Uniform Circular Array in Wireless Location System

Considerations for Design and Implementation of a RF Emitter Localization System with Array Antennas

“…In order to obtain accurate AOA measurement values, ideal array antennas are needed but errors are present due to mismatch of amplitude and phase and inaccuracy of mutual coupling and antenna element location (Tan 2010). Thus, accurate AOA measurement values can be acquired when these errors are calibrated during the system implementation.…”

“…Typically, Akaike Information theoretic Criteria (AIC) and Minimum Description Length criteria (MDL) proposed by Wax & Kailath (1985) and predicted Eigen-Threshold (ET) approach proposed by Chen et al (1991) can be found. However, these methods have been known to show poor performance over the colored noise environment (Tan 2010).…”

“…When the number of elements in array antenna is N with regard to narrow-band signals, AOA measurement values can be acquired up to N-1 signals (Chen et al 2010). Comparing configurations of array antenna, performance of uniform circular array (UCA) is known to be better than that of uniform linear array (ULA) (Shen & Win 2010, Tan 2010.…”

“…Comparing configurations of array antenna, performance of uniform circular array (UCA) is known to be better than that of uniform linear array (ULA) (Shen & Win 2010, Tan 2010.…”

“…There are several calibration methods. In general, transmitters are arranged at generally known positions and amplitude and phase responses of array antennas are measured and calibrated (Cherntanomwong et al 2005, Tan 2010). …”