| 摘要 |
<p>The present invention relates to a method for acquiring and revising a present weather signal capable of acquiring a present weather signal by operating a device only when precipitation phenomenon occurs, and acquiring the present weather signal closest to reality by revising a pulse width for measuring the speed of particles to a value measured in the middle value of a pulse height. The method for acquiring and revising a present weather signal according to the present invention comprises a step of inputting a reference signal and a signal generated in a laser generator in a first comparator; a step of generating a trigger signal if the pulse height (Size) of the signal is higher than the height of the reference signal by colliding the signal generated in the laser generator with the precipitation particles; and a step of measuring the maximum value and width of the pulse signal after the trigger signal is generated. The step of measuring the width of the pulse signal is to measure the width of the pulse signal through a step of starting the measurement of time in a clock counter when the trigger signal is generated, and a step of generating the trigger signal again if the height of the pulse signal is lower than the reference signal, and measuring the pulse width (ΔT) between a time when the trigger signal is initially generated and a time when the next trigger signal is generated.</p> |
