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Emitter Location Using Frequency Difference of Arrival Measurements Only.

Mohamed Khalaf-Allah¹

¹Electrical Smart City Systems, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.

Sensors (Basel, Switzerland)

|December 23, 2022

Summary

This summary is machine-generated.

This study introduces new algorithms for emitter location using only frequency difference of arrival (FDoA) measurements. These methods accurately pinpoint emitter positions without prior data, aiding early warning systems.

Keywords:

emitter location frequency difference of arrival (FDoA)geolocation grid-based location estimation sample-based location estimation

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Area of Science:

Signal Processing
Electromagnetics and Remote Sensing

Background:

Accurate emitter location is crucial for defense and surveillance.
Traditional methods struggle with signals offering fine Doppler but coarse range resolution.

Purpose of the Study:

To develop and validate algorithms for emitter location using solely Frequency Difference of Arrival (FDoA) measurements.
To address limitations in Time Difference of Arrival (TDoA) measurements due to high Doppler resolution.

Main Methods:

Developed grid-based and sample-based algorithms for two-dimensional (2D) emitter location.
Approximated the solution space using deterministic and random emitter location candidates.
Utilized a single-time snapshot of FDoA measurements.

Main Results:

Demonstrated the viability of non-iterative algorithms for emitter location using only FDoA data.
Achieved sufficient accuracy for early warning and sensor cueing without prior information or error distribution knowledge.
Validated algorithms through simulation results.

Conclusions:

Frequency Difference of Arrival (FDoA) measurements alone are sufficient for effective emitter location.
The developed algorithms provide a robust solution for the 2D emitter location problem.
These techniques enhance surveillance capabilities and support defensive strategies.