Range or time-delay determining subsystem for use in certain radar-like systems

摘要: Complicated range gate radar systems are known for determining distance to a target, the target sometimes being centered in which may have predetermined width equivalent distance. For example, extend from 10,000 11,000 yards. The present invention provides new and simple system target. A series of pulses energy capable reflected is transmitted. Consecutive spaced apart time by interval echo-pulses listened after each plurality transmitted pulses. listening consecutive varied substantially linear manner zero maximum less than between counted beginning measurement interval. When an echo received, counting stopped number proportional