摘要
水声信道是一个十分复杂的时空频变信道,其主要特征是复杂性、多变性、强多途和有限带宽;为了实现对水下设备的测距和遥控操作,针对水声信道的特性,系统采用时延编码方案,设置键盘和液晶显示屏能实现对系统的便利操作,并通过串口将测距结果传至电脑实现后处理;文中介绍了测距及系统通信原理,主机部分的总体设计、键盘以及液晶显示部分、数据采集和处理部分;经过多次水池和湖上实验,证明了此系统的可行性并实现了所有预期功能。
Acoustic channel is a very complex time--varying channels, and its main characteristic is the complexity and variability, stronger multipath and limited bandwidth. In order to achieve the range of underwater equipment and remote--controlled operation, for acoustic characteristics of the channel, the system uses delay coding scheme, set up keyboard and LCD screen to achieve the system to facilitate operation. This paper introduced the principle of location and communications systems, the designing of host unit, keyboard and LCD display, data acquisition and processing part. After several rounds of pool and lake experiment proved the feasibility of this system and realized all the expected features.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第7期1292-1294,共3页
Computer Measurement &Control
关键词
水下测距
遥控
时延编码
数据处理
underwater telemeter
teleeontrol
delay coding
data processing
