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Content Provider | IET Digital Library |
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Author | Sun, Ting Dong, Chunxi |
Abstract | By utilising the gain ratio of arrival (GROA) and angles of arrival (AOAs), three-dimensional source localisation with only two stations is studied. The weighted least squares (WLS) algorithm yields the typical closed-form solution, which is obtained by first establishing a set of linear equations and then determining the source position. However, the WLS solution exhibits poor performance at high noise levels. Hence, an efficient parameter augmented constraint method is proposed by extending the parameter space. The proposed method minimises the cost function by imposing a quadratic constraint such that the expectation of the cost function will attain its minimum value at the true solution. In addition, the proposed method yields an explicit algebraic solution and does not depend on a good initial guess; thus, there is no convergence problem. Theoretical analysis and simulation results verify the effectiveness of the proposed method. |
Starting Page | 56 |
Ending Page | 63 |
Page Count | 8 |
ISSN | 17519675 |
Volume Number | 14 |
e-ISSN | 17519683 |
Issue Number | Issue 2, Apr (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-spr/14/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2019.0003 |
Journal | IET Signal Processing |
Publisher Date | 2019-09-17 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | AOA Measurement AOAs Closed-form Solution Constraint Method Cost Function Direction of Arrival Estimation Efficient Parameter Efficient Source Explicit Algebraic Solution Gain Ratio GROA High Noise Levels Interpolation And Function Approximation Least Squares Approximation Linear Equation Method Minimises Numerical Analysis Parameter Space Quadratic Constraint Signal Processing And Detection Source Position Statistics Three-dimensional Source Localisation Time-of-arrival Estimation Weighted Least Squares Algorithm WLS Solution Exhibits Poor Performance |
Content Type | Text |
Resource Type | Article |
Subject | Signal Processing Electrical and Electronic Engineering |
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