发明名称 |
Hierarchical tracker and method |
摘要 |
Method and apparatus for guiding a projectile to a target in a scene using a scene imaging sensor in which the projectile has a guidance and control system for aiming the projectile. A first tracker analyzes the scene and selects a first track point representative of a target and a first confidence value serving as a reliability measure of the first selected track point. A second tracker analyzes the scene and selects a second track point representing the target and a second confidence value which serves as a reliability measure of the second selected track point. Each of said trackers are constructed and arranged to operate independently in a manner that is substantially statistically uncorrelated with respect to each other. A joint confidence value based on track point proximity, convergence and divergence is generated from the tracker data and a composite confidence index is calculated from the first and second confidence values and the joint confidence value. The first and second track points are linearly combined pursuant to one of a set of rules selected by the confidence index to provide a new track point which is outputted to the projectile guidance and control system and new start track points are generated that are specially suited to restart the trackers in a new operation cycle.
|
申请公布号 |
US5341143(A) |
申请公布日期 |
1994.08.23 |
申请号 |
US19880234710 |
申请日期 |
1988.08.19 |
申请人 |
NORTHROP GRUMMAN CORPORATION |
发明人 |
REIS, JAMES J.;LUK, ANTHONY L.;GARBER, DAVID D. |
分类号 |
F41G7/22;G01S3/786;(IPC1-7):G01S13/66;G06F15/50 |
主分类号 |
F41G7/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|