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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tajer, A. Jajamovich, G.H. Xiaodong Wang Moustakides, G.V. |
| Copyright Year | 2009 |
| Description | Author affiliation: Electrical Engineering Department, Columbia University, New York, 10027, USA (Tajer, A.; Jajamovich, G.H.; Xiaodong Wang) || Electrical Engineering Department, University of Patras, 26500 Rion, Greece (Moustakides, G.V.) |
| Abstract | We consider MIMO radar systems with widely-spaced antennas. We treat the problem of detecting extended targets when one or more target parameters of interest are unknown. We provide a composite hypothesis testing framework for jointly detecting the target along with such parameter estimation while only a finite number of signal samples are available. The test offered is optimal in a Neyman-Pearson-like sense such that it offers a Bayesian-optimal detection test, minimizes the average maximum likelihood parameter estimation error subject to an upper bound constraint on the false-alarm probability, and requires a finite number of samples. While the test can be applied for concurrently detecting the target along with estimating any unknown parameter of interest, we consider the problem of detecting a target which lies in an unknown space range and find the range through estimating the time delays that the emitted waveforms undergo from being illuminated to the target until being observed by the receive antennas. We also analyze the diversity gain which we define as the rate that the probability of mis-detecting a target decays with the increasing SNR for a controlled false-alarm and show that for a MIMO radar with N and N transmit and receive antennas, respectively, the diversity gain is N × N. |
| Starting Page | 1176 |
| Ending Page | 1180 |
| File Size | 167952 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424458257 |
| ISSN | 10586393 |
| e-ISBN | 9781424458271 |
| DOI | 10.1109/ACSSC.2009.5470007 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-11-01 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Object detection Parameter estimation MIMO Radar antennas Testing Radar detection Maximum likelihood detection Delay estimation Receiving antennas Diversity methods target detection diversity gain finite samples GLRT MIMO radar |
| Content Type | Text |
| Resource Type | Article |
| Subject | Signal Processing Computer Networks and Communications |
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