期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
多元信号最值检测器
1
作者 卢启中 《宇航计测技术》 CSCD 北大核心 1996年第6期28-34,共7页
介绍一种具有独特电路结构的多元信号最值检测器。该检测器将其输入端的多个信号电压进行比较,并指示出哪个输入端的信号电压最小或最大。检测器本身具有较高的分辨力,使彼此难以分辨的多个输入信号电压中的最大(小)者与其它输入电... 介绍一种具有独特电路结构的多元信号最值检测器。该检测器将其输入端的多个信号电压进行比较,并指示出哪个输入端的信号电压最小或最大。检测器本身具有较高的分辨力,使彼此难以分辨的多个输入信号电压中的最大(小)者与其它输入电压间的差距在输出端加大变得易于分辨。当若干个这种检测器级联使用时,分辨力将大幅度提高。 展开更多
关键词 检测 多元输入 最值检测 信号检测
下载PDF
The Need for Nile River Vessel Traffic Services (NVTS)
2
作者 Samir Abdelghany Megahed Mahdaly Abdelkhalik Kamaleldin Soliman Selmy 《Journal of Shipping and Ocean Engineering》 2018年第2期76-84,共9页
Rivers are the basic natural resources for various human activities. For that reason, the river banks have encouraged pioneers to construct their new towns. River transport has always been of vital importance for the ... Rivers are the basic natural resources for various human activities. For that reason, the river banks have encouraged pioneers to construct their new towns. River transport has always been of vital importance for the economy of various nations. This could be done fhrough descriptive and analytic navigation in rivers and navigation at sea specially in confined waters. Vessel traffic services (VTS) system deals with managing ship traffic and suggesting best routes for vessels at busy and confined waters. Nile traffic service (NTS) as a Nile traffic monitoring system established by rivers protective authorities, can be alike to VTS maximum economic returns coming from fiver routes can be recognized with assistance of Nile traffic services which keep significant river information available for all users at all times. It also helps keep waters safer and more controlled by detecting illegal cargo activities the paper aims to re-plan River Nile for using in navigation and transportation due to its significant importance for a country like Egypt. 展开更多
关键词 Nile River VTS river transport NAVIGATION NVTS
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部