currently
共 91 篇文章
currently 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 91 篇文章，持续更新中。
自适应多码率编码器
·In this paper, we describe the Adaptive Multi-Rate (AMR)speech coder currently under standardization for GSM systemsas part of the AMR speech service. The coder is a multi-rateACELP coder with 8 mode
自适应多码率编码器
·In this paper, we describe the Adaptive Multi-Rate (AMR)speech coder currently under standardization for GSM systemsas part of the AMR speech service. The coder is a multi-rateACELP coder with 8 mode
使用L6574和L6561设计带功率因数校正器（PFC）的智能电子稳流灯
<P>Voltage fed series resonant half bridge inverters are currently used for fluorescent lamps (fig.1
基于GPRS紧急医疗通信系统
<P>Global Mobile Communications (GSM) services currently cover almost all parts of the world. The da
MSM9831的介绍和典型应用
Half the size of currently<BR>available LSIs of that kind, the Oki<BR>MSM9831 emits a wide variety o
电子线路CAD结合单片机教学的探索与实践
<p>以当前普通高校电子信息类各专业开设的两门必修专业基础课“电子线路CAD”和“单片机原理及应用”的教学交叉点为切入,结合武汉纺织大学机械工程与自动化学院自动化专业的教学实际,充分整合校内和院内两级实验室资源和有效利用校内和院内师资力量,研究了两门课的内在联系,为自动化专业学生量身定做课程教学计划、教学大纲,通过“电子线路CAD”的实验、实训、课程设计等研制出可供“单片机原理及应用”课程实验、实
基于单片机的电流检测装置的实现
<p>本系统以MSP430F149单片机为核心,设计研发一款简洁的电流检测装置,主要包括功率放大部分、AD采集部分、LCD1602液晶屏显示部分、电流检测部分。主要通过单片机将采集到的电压信号进行内部运算,然后电流峰峰值、电压、频率和谐波显示在LCD1602液晶显示屏。与当前使用的大部分的电流检测装置不同,它可以进行多种环境下电流的检测工作,适用范围较为广泛且操作简单,成本与同等功能的电流检测装置
基于STM32F407的openmv项目源码及库
<p>基于STM32F407的openmv</p><p>###OpenMV (Open Machine Vision Module)</p><p><br/></p><p>OpenMV is an open-source tiny machine vision module based on an STM32F4xx ARM Cortex-M4 MCU and an OV9650 sensor, i
PID Controllers for Time-Delay Systems
In this chapter we give a quick overview of control theory, explaining why<br />
integral feedback control works, describing PID controllers, and summariz-<br />
ing some of the currently available te
The Internet of Things From RFI
With more than two billion terminals in commercial operation world-wide, wire-<br />
less and mobile technologies have enabled a first wave of pervasive communication<br />
systems and applications. S
RFID+Systems
RFID networks are currently recognized as one a research area of priority. Research<br />
activities related to RFID technology have been booming recently. A number of ongoing<br />
projects are being
Radio Frequency Identification and Sensors
There is an unprecedented enthusiasm for radio frequency<br />
identification (RFID) technologies today. RFID is based on the<br />
exchange of information carried by electromagnetic waves between a<b
Parallel Power Electronics Filters
Power Electronics is one of modern and key technologies in Electrical and<br />
Electronics Engineering for green power, sustainable energy systems, and smart<br />
grids. Especially, the transformati
Radio+Resource+Allocation
We are currently witnessing an increase in telecommunications norms and<br />
standards given the recent advances in this domain. The increasing number of<br />
normalized standards paves the way for
OFDM+Wireless+LANS
Before delving into the details of orthogonal frequency division multiplexing (OFDM), relevant<br />
background material must be presented first. The purpose of this chapter is to provide the necessar
HSDPAHSUPA+for+UMTS+High+Speed+Radio+Access
The first Third Generation Partnership Project (3GPP) Wideband Code Division<br />
Multiple Access (WCDMA) networks were launched during 2002. By the end of 2005<br />
there were 100 open WCDMA networ
Green Radio Communication Networks
Currently, the information and communications technology (ICT) industry sector<br />
accounts for about 2–6% of the energy consumption worldwide, and a significant por-<br />
tion of this is contribut
Broadband Access Networks Technologies
At present, there is a strong worldwide push toward bringing fiber closer to indi-<br />
vidual homes and businesses. Fiber-to-the-Home/Business (FTTH/B) or close to it<br />
networks are poised to be
SmartCitiesTheInternetofThings,PeopleandSystems
The contemporary view of the Smart City is very much static and infrastructure-<br />
centric, focusing on installation and subsequent management of Edge devices and<br />
analytics of data provided b
JAVA SMPP 源码
<h2 style="box-sizing:border-box;margin-bottom:16px;line-height:1.25;border-bottom:1px solid #EAECEF;padding-bottom:0.3em;color:#24292E;font-family:-apple-system, BlinkMacSystemFont, "white-space