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radaranordning foer detection of maal paa short avstaand and radar systems bestaaende of several radaranordningar
radaranordning foer detection of maal paa short avstaand and radar systems bestaaende of several radaranordningar
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机译:用于近距离目标检测的雷达设备以及由多个雷达设备组成的雷达系统
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摘要
The radar determines when it is at a predetermined distance from its nearest passing point to a nearby target. A beat signal [s(t)] formed between the transmitted signal 2 and the received signal 3 is applied to a transversal filter 7 capable of storing samples of the beat signal s(t) produced during a period ( ).The coefficients of this filter are the samples during the period ( ) ending at time (to) of a predetermined beat signal [so(t)] which is entirely fixed by a predetermined value ( theta ) of the relative velocity ( theta ) between radar and target and by a predetermined value (ho) of the radar with respect to the target. The detection of the maximum value of the output signal Y (n) of the filter 7 indicates that the parameters ( theta ) and (h) have the values ( theta ) and (ho) and that at the time of this detection the radar is at the distance x = theta oto from the passing point of the radar at the minimal distance from the target. IMAGE
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