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- Title
阵列误差下的波达方向估计.
- Authors
刘骐玮; 马彦恒; 李根; 董健
- Abstract
The accuracy of the estimation of the direction of arrival(DOA) is reduced due to the presence of array errors. This paper focuses on iteratively solving sparse spectrum under mixed norm constraints to improve the accuracy of estimation. Firstly, it considers the dimensional linear array and establishes the unified optimization function to estimate the signal subspace with high precision. Then, it derives the method of vectorization of error matrix to simplify the process of solving coupling error and amplitude-phase error. Finally, it deduces the extended orthogonal steering vector under the Khatri-Rao product, and solves the estimation of spatial spectrum iteratively according to the unified optimization function. Comparison of the root mean square error(RMSE) of the parameters among different methods shows that the accuracy of the parameters such as array error and angle of arrival is improved by the unified optimization function, which is better than that of the existing methods.
- Publication
Telecommunication Engineering, 2019, Vol 59, Issue 6, p705
- ISSN
1001-893X
- Publication type
Article
- DOI
10.3969/j.issn.1001-893x.2019.06.014