发明名称 |
Multi-stage maximum likelihood target estimator |
摘要 |
A multi-stage maximum likelihood target estimator for use with radar and sonar systems is provided. The estimator is a software implemented algorithm having four computational stages. The first stage provides angle smoothing for data endpoints thereby reducing angle errors associated with tie-down times. The second stage performs a coarse grid search to obtain the initial approximate target state to be used as a starting point for stages 3 and 4 . The third stage is an endpoint Gauss-Newton type maximum likelihood target estimate which determines target range along two time lines. The final refinement of the target state is obtained by the fourth stage which is a Cartesian coordinate maximum likelihood target estimate. The four-stage processing allows the use of target historic data while reducing processing time and computation power requirement.
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申请公布号 |
US7266042(B1) |
申请公布日期 |
2007.09.04 |
申请号 |
US20060398732 |
申请日期 |
2006.03.31 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
GENT KURT;MCPHILLIPS KENNETH J. |
分类号 |
G01S13/66 |
主分类号 |
G01S13/66 |
代理机构 |
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