Estimation for Arrival Angles of Noncircular Signals Based on Toeplitz Covariance 


Vol. 49,  No. 1, pp. 64-69, Jan.  2024
10.7840/kics.2024.49.1.64


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  Abstract

When the signals arriving at a sensor array are noncircular an extended received vector is utilized. The extended covariance matrix consists of the normal covariance matrix and the relation matrix. In case the signals incident into a ULA (uniform linear array) are uncorrelated with each other the entries along each diagonal of the normal matrix, which is of Toeplitz form, are equal and the entries along each antidiagonal of the relation matrix are also equal. This paper proposes a direction estimation method through the rectification according to these properties, instead of the extended sample matrix used by conventional methods. Simulation results show significant performance improvement of the proposed method when SNR (signal-to-noise ratio) is low or when the number of samples is small.

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  Cite this article

[IEEE Style]

Y. Choi, "Estimation for Arrival Angles of Noncircular Signals Based on Toeplitz Covariance," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 1, pp. 64-69, 2024. DOI: 10.7840/kics.2024.49.1.64.

[ACM Style]

Yang-Ho Choi. 2024. Estimation for Arrival Angles of Noncircular Signals Based on Toeplitz Covariance. The Journal of Korean Institute of Communications and Information Sciences, 49, 1, (2024), 64-69. DOI: 10.7840/kics.2024.49.1.64.

[KICS Style]

Yang-Ho Choi, "Estimation for Arrival Angles of Noncircular Signals Based on Toeplitz Covariance," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 1, pp. 64-69, 1. 2024. (https://doi.org/10.7840/kics.2024.49.1.64)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880