Analysis of an Emitter Location Algorithm for use in ESM Systems
Abstract
The report analyses a least squares algorithm for 3D emitter location. The data used is a time series of frequency measurements performed by an airborne receiver, in conjunction with speed and position measurements of the platform. The analysis is done analytically as well as through Monte Carlo simulation. The accuracy generally improves with decreasing frequency and speed errors. A larger RF and a frequent frequency measurement are also beneficial, as are a high aircraft speed and a long observation time. The aircraft altitude is of little importance. A 2D algorithm variant is too inaccurate in case of 330 m emitter altitude uncertainty. Simulation of future measurements of an ASR gives an accuracy of 30 m at 5 km range and 30 km at 200 km range, for an observation time of 100 5. The accuracy is sufficient to guide a targeting pod with a FOV of 2 degrees.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2005
- Accession Number
- ADA452783
Entities
People
- J. S. Groot