搜索资源列表
dangong
- ① 设计并制作一个主站，传送一路语音信号，其发射频率在30MHz~40MHz之间自行选择，发射峰值功率不大于20mW(50 假负载电阻上测定)，射频信号带宽及调制方式自定，主站传送信号的输入采用话筒和线路输入两种方式； ② 设计并制作一个从站，其接收频率与主站相对应，从站必须采用电池组供电，用耳机收听语音信号； ③ 当传送信号为300Hz~3400Hz的正弦波时，去掉收、发天线，用一个功率衰减20dB左右的衰减器
MFRC500antenna
- 这是支持MF RC500 MIFARE 读写集成电路IC的有关射频设计的应用笔记。意在提供对MIFARE 射频接口（ISO 14443A）所需的理解来设计具体天线应用和匹配电路，为了使无接触MIFARE卡通信有最优表现。本文给出了系统的RF部分背景，以及如何为标准应用设计和调试天线的过程概述。详细说明了两种不同的天线和匹配概念以及它们的设计实例。还描述了完整的调试天线的步骤。作为附件的一部分，有兴趣的读者会发现RF接口的详细理论描述-T
RC500DEMOKIT
- 射频卡读卡芯片rc500的芯片介绍，下位机代码，和单片机连接的典型电路，很有参考价值-Rc500 chip card readers RF chips, the next-bit machine code, and the typical single-chip circuit connection, the valuable
sending
- 该压缩包是用msp430单片机开发板和射频芯片CC2500制成的无线传感器网络节点的发送信息过程的源程序代码-The compressed packets are single-chip msp430 development board and the CC2500 RF chip wireless sensor networks made of nodes to send the source code information the
receive
- 该压缩包是用msp430单片机开发板和射频芯片CC2500制成的无线传感器网络节点的接收信息过程的源程序代码-The compressed packets are single-chip msp430 development board and the CC2500 RF chip wireless sensor networks made of nodes of the process of receiving information
demo
- 基于MFRC50O射频基站芯片和AT89552单片机的射频卡读写器底层程序源代码 -Based on base station RF chips and MFRC50O SCM AT89552 RF card reader the underlying source code
RFnoise
- 产生射频噪声干扰信号，并画出他的波形和功率谱-RF signal generated noise, and draw his waveform and power spectrum
cc2500application
- 此为射频模块CC2500和MSP430单片机的应用程序，可以用来接收发送数据。-This is the CC2500 RF module and application MSP430 MCU can be used to send data to receive.
RC500
- 实现射频卡的读写，通过串口控制读卡器的相应操作，-RF card reader, card reader through the serial port to control the corresponding operation,
automated-multi-layer-garage
- 北京立体车库监控系统源程序，可以实现PROFIBUS-DP现场总线技术及MPI总线技术的应用突破了PLC与PC之间传统的串口通讯，提高了PC与PLC的通讯效率；非接触IC技术、射频数据通讯技术的应用，使得立体车库趋于全自动化；模块化监控软件设计使得软件设计过程更加明晰，并预留有扩展接口，使得系统具有一定的可扩展性和开放性。-Beijing source three-dimensional garage monitoring system
readcad
- 用MFC做了一个基于无线射频卡的饭卡充值系统，-MFC to do with a card based on radio frequency饭卡recharge system
dongnandaxueshepindianlusheji
- 东南大学的射频集成电路设计设计的课件，还是相当的不错的-Southeast University, the design of RF integrated circuit design of courseware, or very good
EM4469
- 射频卡芯片EM4066技术手册，内容详尽，可以参考-Radio frequency card EM4066 chip technical manuals, and detailed, can refer to
rfid_card
- 射频卡开锁，开锁时用射频卡放在读卡器上(距离<15CM)即可开锁，如果用非法卡连续刷写次数超过3次则报警，这时系统将关闭刷卡器30分钟，在30分钟后再允许刷卡。 -RF card lock, RF card lock used on the card reader on the (distance < 15CM) to unlock, if illegal brush to write the number of card
PracticalRfSystemDesign
- 本书介绍射频微波系统设计，也包括其他阻抗匹配、天线等高频技术。-This book is about systems that operate at radio frequencies (RF) (including microwaves) where high-frequency techniques, such as impedance matching, are important.
nRF905and89LV51
- 基于89LV51单片机对无线射频芯片nRF905进行操作，也可以移植到其他型号的单片机上面-89LV51-based single-chip radio frequency chip nRF905 to operate, but also can be transferred to other models of single-chip above
AT89s52_RC500_source_code
- 一个51控制RC500射频模块的例子。本人已经测试通过。性能良好。-An RF module 51 to control RC500 example. I have the test. Good performance.
kaiti
- 关于射频识别系统读写器的文章，系统的说明了下系统的架构，运作方式-On radio frequency identification reader system of the articles, the system shows the structure of the system, its mode of operation
RFID-cases
- FRID的案例及其方案。RFID射频识别、电子标签，非接触式的自动识别技术，它通过射频信号自动识别目标对象并获取相关数据，识别工作无须人工干预，可工作于各种恶劣环境。RFID技术可识别高速运动物体并可同时识别多个标签，操作快捷方便。-FRID case and its programs. RFID radio frequency identification, electronic label, non-contact automati
usb_driver
- 主要用于射频的开发,有很重要的参考价值,花了很久才找到的,可以进行无线开发好了,很久才找到,可以进行参考-Mainly used in RF development, there is a very important reference value, to spend a long time to find and can be wireless development