Open AccessCollection Method of Arbitrary Laser Echo Based on STM32
Author(s) -
Weihao Li,
Guoqing Zhou,
Xiang Zhou,
Yizhi Tan,
Gangchao Lin,
Xianxing Li,
Ronghua Deng
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/783/1/012146
Subject(s) - stm32 , waveform , echo (communications protocol) , signal generator , duty cycle , signal (programming language) , arbitrary waveform generator , computer science , acoustics , underwater , generator (circuit theory) , lidar , power (physics) , electrical engineering , physics , optics , telecommunications , voltage , engineering , chip , radar , computer network , oceanography , quantum mechanics , geology , programming language
When LIDAR measures the water depth, in most cases the echo signal is more complex, with more backscattering, and it is difficult to observe different parts of the waveform separately, especially the underwater echo signal. Therefore, this paper uses an STM32 controller to design a signal generator to send out pulse signals, which act on the detection device PMT in the LIDAR detection system to control the start and stop of the PMT receiving channel. By adjusting the frequency, duty cycle, and other parameters of this signal generator, the arbitrary part of the waveform can be collected, and the waveform is not disturbed. Using the STM32 instead of a traditional signal generator can reduce system power consumption and load capacity.