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Waves 25

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  • Radio Wave Propagation

    One of the prerequisites for the development of telecommunication services is the understanding of the propagation of the waves, either acoustic, electromagnetic, radio or light waves, which are used for the transmission of information. In this work, we shall limit ourselves to the study of radio wa ...

    /dl/522083.html

    标签: Propagation Radio Wave

    上传时间: 2020-06-01

    上传用户:shancjb

  • RF Imperfections

    The unguided transmission of information using electromagnetic waves at radio frequency (RF) is often referred to as wireless communications, the first demonstration of which took place at the end of the 19th cen- tury and is attributed to Hertz. The technology was, shortly thereafter, commercialise ...

    /dl/522097.html

    标签: Imperfections RF

    上传时间: 2020-06-01

    上传用户:shancjb

  • Radio Frequency Identification and Sensors

    There is an unprecedented enthusiasm for radio frequency identification (RFID) technologies today. RFID is based on the exchange of information carried by electromagnetic waves between a label, or tag, and a reader. This technology is currently in full economic expansion, which has manifested itself ...

    /dl/522387.html

    标签: Identification Frequency Sensors Radio and

    上传时间: 2020-06-08

    上传用户:shancjb

  • 基于TMS320F28035芯片为控制核心的空间矢量异步电机变频器

    基于TMS320F28035芯片为控制核心的空间矢量异步电机变频器  我们设计的异步电机变频调速器以TMS320F28035芯片为控制核心,通过输出三相PWM波控制智能功率模块IPM驱动三相异步电机。我们使用空间矢量SVPWM算法,并对其进行了优化。采用检测反电势的方法省去了昂贵的光电编码器,大大节省了成本。同时开创性的研发了自动 ...

    /dl/833683.html

    标签: tms320f28035 芯片

    上传时间: 2022-05-08

    上传用户:zhanglei193

  • VIP专区-嵌入式/单片机编程源码精选合集系列(76)

    直升机飞行手册 (英)

    /dl/174.html

    标签: 直升机 飞行

    上传时间: 2013-05-19

    上传用户:eeworm