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首页> 美国政府科技报告 >Passive Range Estimation for Antishipping Missiles.
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Passive Range Estimation for Antishipping Missiles.

机译：反舰导弹的被动距离估计。

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This report deals with several techniques for passive ranging, i.e., the estimation of target range from noisy measurements of bearing or line-of-sight angle alone. The type of engagement treated in this investigation involves a maneuvering surface target and a missile without an altimeter. The missile approaches the target along a trajectory that is characterized by a low-altitude cruise phase followed by a terminal pitch-up maneuver. Several modified Kalman filter-like algorithms are applied to this nonlinear filtering problem; these include the extended Kalman filter (based on small-signal linearization) and several quasi-linear Kalman filters (based on random-input describing function theory). Performance comparisons are obtained by applying the filters to a number of trajectories.

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