摘要
在对超声波鱼探仪原理分析基础上,介绍了利用单片机控制的便携式鱼探仪设计。该系统利用单片机控制超声波发射和回波接收,使用对数放大器对回声信号变化范围进行压缩,软件方法实现目标跟踪算法进行噪音滤除,判断鱼的存在。
A microcontroller,which is designed at the principle of the fish-finder is introduced,based on the analysis of uhrasonic fish finder. The system transmits ultrasonic and receives the echo,a logarithmic amplifier is applied for compressing the dynamic range of echo signal,and a software based on target tracking method is designed to remove the noise and judge the presence of fish.
出处
《自动化与仪表》
2008年第6期9-12,共4页
Automation & Instrumentation
关键词
鱼探仪
单片机
对数放大器
超声波换能器
回波
目标跟踪
fish-finder
microcontroller
1ogarithmic amplifier
ultrasonic transducer
echo
target tracking
