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SMALL AND LOW POWER CONSUMPTION SHORT PULSE RADAR HAVING TIME LAG BETWEEN TRANSMISSION AND RECEPTION ARBITRARILY VARIABLE WITH HIGH TIME RESOLUTION AND ITS CONTROL METHOD
SMALL AND LOW POWER CONSUMPTION SHORT PULSE RADAR HAVING TIME LAG BETWEEN TRANSMISSION AND RECEPTION ARBITRARILY VARIABLE WITH HIGH TIME RESOLUTION AND ITS CONTROL METHOD
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机译:发射和接收随时间变化随时间变化的小,低功耗短脉冲雷达及其控制方法
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摘要
In a configuration according to a short-range radar of the present invention and a method of controlling the same, the timing at which a variable-period pulse output from a variable-period pulse generator including a direct digital synthesizer (DDS) has shifted in level first since reception of a search instruction is used as a reference timing, so that a signal that shifts in level at the reference timing or a fixed lapse of time later than the reference timing is generated and output as a transmission trigger signal, and a signal that shifts in level at a timing delayed by half a period of the variable-period pulse or its integral multiple from the timing at which the transmission trigger signal is output is generated and output as a reception trigger signal. With this, by varying beforehand frequency data of the DDS based on the relationship between the frequency data and delay time between transmission and reception stored in a memory, it is possible to vary delay time between the transmission trigger signal and the reception trigger signal. It is thus possible to arbitrarily vary the delay time between transmission and reception at a high time resolution by using a simple configuration and low power dissipation.
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