Air-Based Passive Localization for a Moving Source Using Hybrid AOA–TDOA

This letter focuses on estimating the position and velocity of a moving source in 3 dimension (3D) space, using hybrid angle of arrival (AOA) and time difference of arrival (TDOA) measurements observed by a single moving receiver. In order to characterize the motion of the relative range between source and receiver, the components of the relative velocity and acceleration are firstly represented in a spherical coordinate frame. Then, the relations between these components and AOA measurements are modeled together with the relations between the source localization and TDOA measurements. This unified model can be reformulated as a constrained least squares (LS) problem and a closed-form solution can be obtained by using the squared range difference LS (SRD-LS). Finally, the Cramer-Rao Bound (CRB) is derived for unified model. Numerical simulations show the validity of the proposed method.

• Publication year

  2025

• Venue

  IEEE Control Systems Letters

• Publication date

  Unknown publication date

• Fields of study

  Physics, Computer Science, Engineering

• Identifiers
  DOI 10.1109/LCSYS.2025.3623948
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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