公开(公告)号：US5990939A

公开(公告)日：1999-11-23

申请号：US535390

申请日：1995-09-28

Applicant: Richard J. Sand ,  Thomas E. Jenkins ,  Kevin M. Nakano

Inventor： Richard J. Sand ,  Thomas E. Jenkins ,  Kevin M. Nakano

IPC: F41G7/20 ,  F41G7/30 ,  F42B15/01 ,  G05D1/12 ,  H04N7/18 ,  H04N5/225 ,  H04N5/33 ,  H04N9/47

CPC classification number: F41G7/303

Abstract: A video demultiplexing interface (70) is used in a missile tracking system (10) employing a missile (12) with a thermal beacon (24). A target designator (40) defines a boresight from a missile firing location, such as an aircraft, to a target. The closed-loop tracking system (10) employs a forward looking infrared (FLIR) sensor (52) to track the displacement of the thermal beacon (24) from the boresight and generates a correction signal related to such displacement. The video demultiplexing interface (70) transforms serial multiplexed video signals, which are output by the FLIR sensor (52) and contain a field with M rows and L columns of pixels, into a demultiplexed parallel video signal containing N selectable adjacent horizontal rows of pixels (where N is less than M). A video thermal tracker (58) selects the N adjacent horizontal rows of pixels and generates azimuth and elevation error signals which are transmitted to the missile (12). The trajectory of the missile (12) is continuously corrected to align the thermal beacon (24) with the boresight.

Abstract translation: 在使用具有热信标（24）的导弹（12）的导弹跟踪系统（10）中使用视频解复用接口（70）。 目标指示符（40）将来自导弹发射位置（如飞机）的视轴定义为目标。 闭环跟踪系统（10）使用前视红外（FLIR）传感器（52）来跟踪热信标（24）与视轴的位移，并产生与这种位移有关的校正信号。 视频解复用接口（70）将由FLIR传感器（52）输出并且包含具有M行和L列像素的场的串行多路复用视频信号转换成包含N个可选择的相邻水平行像素的解复用的并行视频信号 （其中N小于M）。 视频热跟踪器（58）选择N个相邻的水平行像素，并产生发送到导弹（12）的方位角和仰角误差信号。 导弹（12）的轨迹被连续校正，以将热信标（24）与视轴对准。