Joint detection and tracking of unresolved targets with monopulse radar
Detection and estimation of multiple unresolved targets with a monopulse radar is a challenging problem. For ideal single bin processing, it was shown in the literature that at most two unresolved targets can be extracted from the complex matched filter output signal. A new algorithm is developed to...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Aerospace & Electronic Systems Society
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/8318 |
| _version_ | 1848745622426877952 |
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| author | Nadarajah, Nandakumaran Sinha, A. Kirubarajan, T. |
| author_facet | Nadarajah, Nandakumaran Sinha, A. Kirubarajan, T. |
| author_sort | Nadarajah, Nandakumaran |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Detection and estimation of multiple unresolved targets with a monopulse radar is a challenging problem. For ideal single bin processing, it was shown in the literature that at most two unresolved targets can be extracted from the complex matched filter output signal. A new algorithm is developed to jointly detect and track more than two unresolved targets from a single detection with the help of tracking information. That is, the method involves the use of tracking information in the detectionprocess. For this purpose, target states are transformed into detection parameter space, which involves high nonlinearities. In order to handle the nonlinearities, the particle filter, which has proven to be effective in nonlinear non-Gaussian estimation problems, is used as the basis of the closed loop system for tracking multiple unresolved targets. In addition to the standard particle filtering steps, the detection parameters corresponding to the predicted particles are evaluated using the nonlinearmonopulse radar beam model. This in turn enables the evaluation of the likelihood of the monopulse signal given tracking data. Bayesian model selection is then used to find the correct detectionevent. The corresponding particle set is taken as the correct representation of the target posterior. A simulated amplitude comparison monopulse radar is used to generate the data and validate the joint detection and tracking of more than two unresolved targets. |
| first_indexed | 2025-11-14T06:20:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-8318 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:20:17Z |
| publishDate | 2008 |
| publisher | Aerospace & Electronic Systems Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-83182017-02-28T01:31:59Z Joint detection and tracking of unresolved targets with monopulse radar Nadarajah, Nandakumaran Sinha, A. Kirubarajan, T. Detection and estimation of multiple unresolved targets with a monopulse radar is a challenging problem. For ideal single bin processing, it was shown in the literature that at most two unresolved targets can be extracted from the complex matched filter output signal. A new algorithm is developed to jointly detect and track more than two unresolved targets from a single detection with the help of tracking information. That is, the method involves the use of tracking information in the detectionprocess. For this purpose, target states are transformed into detection parameter space, which involves high nonlinearities. In order to handle the nonlinearities, the particle filter, which has proven to be effective in nonlinear non-Gaussian estimation problems, is used as the basis of the closed loop system for tracking multiple unresolved targets. In addition to the standard particle filtering steps, the detection parameters corresponding to the predicted particles are evaluated using the nonlinearmonopulse radar beam model. This in turn enables the evaluation of the likelihood of the monopulse signal given tracking data. Bayesian model selection is then used to find the correct detectionevent. The corresponding particle set is taken as the correct representation of the target posterior. A simulated amplitude comparison monopulse radar is used to generate the data and validate the joint detection and tracking of more than two unresolved targets. 2008 Journal Article http://hdl.handle.net/20.500.11937/8318 Aerospace & Electronic Systems Society restricted |
| spellingShingle | Nadarajah, Nandakumaran Sinha, A. Kirubarajan, T. Joint detection and tracking of unresolved targets with monopulse radar |
| title | Joint detection and tracking of unresolved targets with monopulse radar |
| title_full | Joint detection and tracking of unresolved targets with monopulse radar |
| title_fullStr | Joint detection and tracking of unresolved targets with monopulse radar |
| title_full_unstemmed | Joint detection and tracking of unresolved targets with monopulse radar |
| title_short | Joint detection and tracking of unresolved targets with monopulse radar |
| title_sort | joint detection and tracking of unresolved targets with monopulse radar |
| url | http://hdl.handle.net/20.500.11937/8318 |