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Cubical and spherical directional array-based particle source detection with poisson statistics.

Sahana Srikanth¹, Sanjeev Gurugopinath², Koshy George³

¹Department of Electronics and Communication Engineering, PES University, Bengaluru, 560085, India. sahanas@pes.edu.

Scientific Reports

|April 4, 2025

Summary

This summary is machine-generated.

This study introduces the truncated mean test (TMT) for detecting dynamic particle sources with directional arrays. Simulations show TMT outperforms existing methods like generalized likelihood ratio test (GLRT) for improved detection accuracy.

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Area of Science:

Signal processing
Acoustics
Array processing

Background:

Detecting dynamic particle sources is crucial in various scientific and engineering fields.
Directional arrays are employed for source localization and characterization.
Existing methods for source detection have limitations in performance and applicability.

Purpose of the Study:

To investigate and compare different hypothesis testing methods for detecting far-field dynamic particle sources.
To evaluate the performance of cubical and spherical directional arrays in source detection scenarios.
To introduce and validate the truncated mean test (TMT) as a superior detection method.

Main Methods:

Analysis of likelihood ratio test (LRT), generalized LRT (GLRT), and truncated mean test (TMT).
Consideration of stationary and moving targets with both correlated and independent observations.
Performance evaluation using probabilities of detection and false-alarm rates through simulations.

Main Results:

The truncated mean test (TMT) demonstrates superior performance compared to existing methods.
Performance analysis was conducted for both cubical and spherical array configurations.
Probabilities of detection and false-alarm were systematically analyzed for different testing strategies.

Conclusions:

The truncated mean test (TMT) is a highly effective method for detecting far-field dynamic particle sources.
Directional array configurations (cubical and spherical) impact detection performance.
TMT offers improved accuracy over traditional methods like GLRT for dynamic particle source detection.