Title :
Signal Interpolation Algorithm for Optical Raindrop Counting
Author :
Ma, Shangchang ; Yang, Bifeng ; Zhan, Yanjun ; Zhang, Sujuan ; He, Jianxin
Author_Institution :
Chengdu Univ. of Inf. Technol., Chengdu, China
Abstract :
This paper proposes a signal interpolation algorithm for optical raindrop counting. In general, the output signal of photoelectric detection circuit while a raindrop falling through a laser sheet is square wave with corresponding amplitude attenuation. The proposed method transform it into a direct signal with amplitude attenuation by a signal interpolation algorithm, the algorithm is based on model prediction. The new signal generated by the algorithm is efficient for raindrop diameter and falling speed calculation.
Keywords :
geophysical equipment; interpolation; particle size measurement; signal processing equipment; velocity measurement; amplitude attenuation; optical raindrop counting; photoelectric detection circuit; signal interpolation; square wave; Instruments; Interpolation; Optical attenuators; Optical pulse shaping; Optical receivers; Optical transmitters; Photodiodes; Signal generators; Size measurement; Velocity measurement;
Conference_Titel :
Information Engineering and Computer Science, 2009. ICIECS 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4994-1
DOI :
10.1109/ICIECS.2009.5364568
