Fig. 1. Uniform circular array with a distributed source.
Fig. 2. RMSE versus SNR.
Fig. 3. Comparison between nominal angle estimation and angular spread using DSPE (SNR = 10 dB).
Table 1. Elapsed CPU times required for calculation.
References
- R. O. Schmidt, "Multiple emitter location and signal parameter estimation," IEEE Trans. Antennas Propag. AP-34, 271-280 (1986).
- R. Raich, J. Goldberg, and H. Messor, "Bearing estimation for a distributed source: modeling, inherent accuracy limitations and algorithm," IEEE Trans. on Signal Processing. 48, 429-441 (2000). https://doi.org/10.1109/78.823970
- S. Valaee, B. Champagne, and P. Kabal, "Parametric localization of distributed sources," IEEE Trans. on Signal Processing, 43, 560-565 (2012).
- Y. U. Lee, J. Choi, I. Song and S. R. Lee, "Distributed source modeling and direction-of-arrival estimation techniques," IEEE Trans. on Signal Processing. 45, 960-969 (1997). https://doi.org/10.1109/78.564184
- S. Lee, I. Song, H. Kwon, and S. R. Lee, "Low-Complexity estimation of 2D DOA for coherently distributed sources," Signal Processing, 83, 1789-1802 (2003). https://doi.org/10.1016/S0165-1684(03)00103-8
- J. G. Nam, S. H. Lee, and K. K. Lee "2-D nominal angle estimation of multiple coherently distributed sources in a uniform circular array," IEEE Antennas Wireless Propag. Lett, 13, 415-418 (2014). https://doi.org/10.1109/LAWP.2014.2308191
- B. Liao, Y. Wu, and S. Chan, "A generalized algorithm for fast two dimensional angle estimation of a single source with uniform circular array," IEEE Antennas Wireless Propag. Lett. 11, 984-986 (2012). https://doi.org/10.1109/LAWP.2012.2213792
- T. J. Jung and K. K. Lee, "Simple closed-form solution for a single source estimation in mixed far-field and near-field conditions" (in Korean), J. Acoust. Soc. Kr. 35, 35-41 (2016). https://doi.org/10.7776/ASK.2016.35.1.035