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书籍 Hybrid+Analog-Digital+Precoding

In this paper we revisit hybrid analog-digital precoding systems with emphasis on their modelling and radio-frequency (RF) losses, to realistically evaluate their benefits in 5G system implementations. For this, we decompose the analog beamforming networks (ABFN) as a bank of commonly used RF compon ...
https://www.eeworm.com/dl/521928.html
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书籍 Service+Robotics+within+the+Digital+Home

Over the past few decades there has been an exponential growth in service robots and smart home technologies, which has led to the development of exciting new products in our daily lives. Service robots can be used to provide domestic aid for the elderly and disabled, serving various functions rangi ...
https://www.eeworm.com/dl/522298.html
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技术资料 TI官方对三相三电平SVPWM的解析

   TI官方对三相三电平SVPWM的解析,有助于理解三电平SVPWM的原理,里面还对SVPWM的扇区进行优化处理;标题:Center-Aligned SVPWM Realization for 3- Phase 3- Level Inverter摘要:The space vector pulse width modulation (SVPWM) has been widely used in 3- phaseinverter control system. The most effec ...
https://www.eeworm.com/dl/844552.html
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技术资料 一种机床电气设备教学器材的智能答题器

本文介绍一款机床电气设备教学器材的智能答题器的设计。该答题器有手动设置、测验、考证三种功能。具有操作简便、造价低廉、自主研发、能够供平时上课、过程检测、考证等各种场合。适合对职业学校的机床电气实训台进行维修或改造。This paper introduces the design of an intelligent answering device for teaching equip ...
https://www.eeworm.com/dl/894759.html
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技术资料 基于单片机的无线寻物器设计

通过单片机和无线收发模块,发送和接收信息,快速准确地寻找到丢失的物品。需要寻找物品时,发射机发出信号,当接收机收到信号后,以蜂鸣器和二极管加以声光指示,实时信息传输迅速定位丢失物品,寻找距离可达到10米。Send and receive information through the MCU and wireless transceiver module to find lost items quickly a ...
https://www.eeworm.com/dl/897795.html
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技术资料 4G移动通信技术权威指南:LTE与LTE-Advanced.4G LTE.LTE

PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblu ...
https://www.eeworm.com/dl/838714.html
下载: 3
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单片机编程 基于8098单片机的SPWM变频调速系统

  数字控制的交流调速系统所选用的微处理器、功率器件及产生PWM波的方法是影响交流调速系统性能好坏的直接因素。在介绍了正弦脉宽调制(SPWM)技术的基础上,设计了一种以8098单片机作为控制器,以智能功率模块IPM为开关器件的变频调速系统。通过软件编程,产生正弦脉冲宽度调制波形来控制绝缘栅双极晶体管的导通和关断, ...
https://www.eeworm.com/dl/502/29059.html
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单片机编程 基于S3C2440A的银行评价器的设计

提出了一种以S3C2440A为核心处理器的银行评价器的设计方案,并结合XILINX公司的XL95144XL型CPLD,辅助S3C2440A,实现该银行评价器的各部分功能以及系统信号之间的相互协调。该评价器在系统设计上采用液晶屏显示,代替了以往简单的数码管电路的显示模式,在视觉上给人以全新的享受。同时,评价器增加了新的网络供电方式,只 ...
https://www.eeworm.com/dl/502/29164.html
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数值算法/人工智能 DAKOTA

Computational models are commonly used in engineering design and scientific discovery activities for simulating complex physical systems in disciplines such as fluid mechanics, structural dynamics, heat transfer, nonlinear structural mechanics, shock physics, and many others. These simulators can be ...
https://www.eeworm.com/dl/510304.html
下载: 1
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技术资料 基于变介电常数的植物叶片含水率无损检测装置设计

以AT89C51单片机为核心,结合数字电子技术相关电路,设计了一款基于变介电常数的植物叶片含水率无损检测装置。该装置采用夹持型平行极板电容器与555定时器搭建多谐振荡器,以待测叶片作为电容极间介质,通过待测叶片水分变化影响介电常数,进而改变多谐振荡器频率,再由单片机完成数据读取与处理,以此来检测叶片含水率。并采用鸢 ...
https://www.eeworm.com/dl/894717.html
下载: 10
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