How to localize multiple sources using TDOA measurements in 3D?
Particle Flows for Source Localization in 3-D Using TDOA Measurements
September 2, 2024
https://arxiv.org/pdf/2408.17096This paper proposes a novel method for locating multiple sound sources in 3D space using time-difference-of-arrival (TDOA) measurements, a common challenge in fields like robotics and surveillance. The authors address this problem by simulating the movement of sound waves ("particle flow") within a probabilistic framework ("belief propagation") to estimate source locations, even when the number of sources is unknown.
While not directly using LLMs, the paper highlights techniques relevant to LLM-based multi-agent systems:
- Decentralized data fusion: Each receiver pair acts as an independent agent, and their information is combined to achieve a global understanding of source locations.
- Handling uncertainty: The system effectively deals with noisy measurements and ambiguity in associating signals to specific sources.
- Scalability: Using Gaussian Mixture Models and efficient particle flow methods allow the algorithm to handle complex scenarios with multiple sources and receivers.