A Closed-Form Solution for Source Localization Using FDOA Measurements Only
Yuhao Pei, Xi Li, Le Yang, Fucheng Guo
Abstract
This letter focuses on source localization using frequency difference of arrival (FDOA) measurements only. An efficient two-step weighted least square (TSWLS) method is proposed to estimate the unknown source position in closed form. In its first step, intermediate variables are introduced to pseudo-linearize FDOA equations. In the second step, the source position estimate is updated from solution equations established by using the first-order perturbation analysis. Theoretical analysis and numerical results have demonstrated the efficiency of the proposed method.
Topics & Concepts
FDOAPosition (finance)Computer scienceApplied mathematicsPerturbation (astronomy)AlgorithmMathematicsClosed-form expressionMathematical optimizationControl theory (sociology)Mathematical analysisMultilaterationPhysicsGeometryAzimuthQuantum mechanicsControl (management)EconomicsFinanceArtificial intelligenceIndoor and Outdoor Localization TechnologiesSpeech and Audio ProcessingAdvanced Adaptive Filtering Techniques