发明授权
US3717874A Surveillance doppler radars 失效
监视雷达雷达

Surveillance doppler radars
摘要:
This invention relates to a monopulse coherent doppler radar system for use at the end of a runway for detecting moving targets on the runway and vicinity of said runway. A multiplicity of range gates and threshold circuits define contiguous range increments on the runway. When a target is detected, a light signal indicates the proper range increment.
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