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- 结合无线通信技术和USB技术的优点,提出一种基于无线USB技术的数据采集系统。该系统运用高速转换器AD7874、USB接口芯片PDIUSBD12、89C51微处理器和射频收发器nRF401构建数据采集电路和无线USB接口。该设计成功取代有线数据采集系统复杂的连线,并且提高了数据采集的抗干扰性、灵活性。文中对无线A/D转换电路、无线USB接口的设计、89C51内部固件程序及USB应用程序编写进行了阐述。
GX1101_software_packet20050914_v3.0_ZLN
- 国内唯一的DVB-S解调芯片的驱动代码 包括MAX2118 ZL10039 一系列射频芯片驱动-Only the DVB-S demodulator chip driver code including a series of MAX2118 ZL10039 radio chip driver
data_TV_test
- 在不同数字电视传输系统中保持可靠、高质量服务的秘诀在于关注那些有可能破坏系统完备性的关键因素。本文介绍这些关键的射频测量，它们可以帮助在收视者完全丧失数字电视服务和画面之前提前检测出有关的问题。-In different digital television transmission system to maintain reliable, high-quality services for those concerned about the secret lies in the possibi
rx050305
- 目前数字电视家庭子母机参考思路：模拟有线电视射频单加扰系统，城市主机接收程序-At present, digital television reference to ideas of family cluster machines: single-frequency analog cable TV scrambling system, the host city to receive the procedure
SON050312zj
- 目前数字电视家庭子母机参考思路：模拟有线电视射频单加扰系统，城市子机，接收程序-At present, digital television reference to ideas of family cluster machines: Simulation of a single RF cable scrambling systems, urban sub-machine, to receive program
C551102
- 目前数字电视家庭子母机参考思路：模拟有线电视射频单加扰系统，前端管理机，类同可寻址系统-At present, digital television reference to ideas of family cluster machines: Simulation of a single RF cable scrambling systems, front-end management of machines, the same addressing system can be