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2-D PBR Localization Complying With Constraints Forced by Active Radar Measurements
- Source :
- IEEE Transactions on Aerospace and Electronic Systems. 57:2647-2660
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- A new algorithm for passive bistatic radar (PBR) localization is proposed via joint exploitation of multiple illuminators of opportunity and measurements gathered by a colocated active radar. Ad-hoc constraints within the localization process are bestowed accounting for both a priori information on the PBR receive antenna main-beam size and the uncertainty characterizing active radar data, i.e., the root mean square error (RMSE) of range/bearing measurements. Hence, the estimation task is cast as an elliptic positioning problem, according to the constrained least squares framework. The resulting non-convex optimization problem is globally solved providing a closed-form estimate in Cartesian coordinates. The performance of the proposed estimator, in terms of RMSE, exhibits sensible improvement with respect to counterparts. The proposed technique is also applied to the case of a dynamic scenario for a bi-sensor surveillance system, where the active rotating platform acquires measurements at each scanning period. The results show the localization performance improvement achieved when the system is complemented with a PBR staring in a specific search sector of interest.
- Subjects :
- Optimization problem
Mean squared error
Computer science
nonconvex optimization
Aerospace Engineering
Estimator
elliptic localization
range measurements
passive bistatic radar (PBR)
law.invention
Passive radar
colocated active and passive radar
Bistatic radar
Active radar
law
multiple transmitter of opportunity
least squares (LS) estimation
A priori and a posteriori
azimuth measurement
Electrical and Electronic Engineering
Radar
Performance improvement
Algorithm
Subjects
Details
- ISSN :
- 23719877 and 00189251
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Aerospace and Electronic Systems
- Accession number :
- edsair.doi.dedup.....3c71561bdf697ddb4334b06028e406c2