초록 ▼

A source of radiation is detected by an optical scanning system including a rotating mirror and an array of V-shaped detector elements. The detectors are arranged in vertically stacked pairs in a common plane, with the time of travel of a target image between a given pair of detectors determining th

A source of radiation is detected by an optical scanning system including a rotating mirror and an array of V-shaped detector elements. The detectors are arranged in vertically stacked pairs in a common plane, with the time of travel of a target image between a given pair of detectors determining the azimuth and elevation coordinates of the target. Signals from the detectors are amplified, filtered and passed through a processor which provides the desired information from the time and spatial relationships of the target and detectors. Each pair of detectors covers a given sector of the elevation angle scanned by the total array.

대표청구항 ▼

A radiation scanning and detection system comprising: a plurality of optical radiation detectors positioned to detect radiation in azimuth and elevation from a remote source, each detector being adapted to provide a signal representative of said radiation, said detectors including a plurality of pai

A radiation scanning and detection system comprising: a plurality of optical radiation detectors positioned to detect radiation in azimuth and elevation from a remote source, each detector being adapted to provide a signal representative of said radiation, said detectors including a plurality of pairs of infrared sensitive elements aligned and spaced vertically in a common plane, respective said pairs having a V-shape including symmetrical elements spaced from each other about a vertical axis; optical scanning means for scanning a field of view and directing radiation from said remote source transversely across said plurality of pairs of vertically aligned detectors, each said pair being adapted to cover a small angle of elevation in the field of view in accordance with the vertical position in said plane; threshold means associated with each separate detector element for sensing each said signal at respective vertical positions and providing a digital pulse when each said signal exceeds a predetermined amplitude; digital filter means for establishing a predetermined sequence of digital pulses representative of said signal and supplying an output pulse upon the occurrence of said sequence; and signal processing means for processing a plurality of output pulses from a plurality of said digital filter means to locate the position of said remote source in said field of view.