CDMA is usually a digital cellular technology that takes advantage of spread spectrum procedures to empower multiple people to share the exact same frequency band, letting far more effective use from the offered spectrum.
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数字信号相乘，由于伪随机码速率快，扩展了传输带宽（伪随机码带宽远大于信号带宽，扩展信号频谱），在接收端，用相同的伪随机码序列
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It’s a Element of the CDMA2000 number of standards and is also characterized by fast data rates, enhanced data ability, and enhanced top quality in audio and online video communications. It’s largely used check here in North The us and areas of Asia.
In the event you now know the 3GPP specification or report amount, you can take a more direct route, by using the Specification Series web site or by way of immediate access to the get more info FTP server.
Wi-fi suggests communication and information transfer without the use of Actual physical medium i.e., wires. Allow us to know how communication is d
帧同步 ：指将接收的数据序列按照传输时的帧结构正确地划分开来。帧同步一般需要在码片同步的基础上，利用特定的同步序列进行。
Amount one describes the gathering of data as well as manipulation of physical procedures. It refers to sensors, intelligent devices, valves and various devices that feeling or affect generation.
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ISOFlex, Section of the Sigma Plastics Group, needed a completely new TMS which could enable the business far better handle and control its logistics operations. here Just after an exhaustive research, such as a halted
预测模型的优化 ：通过机器学习等先进技术来预测无线环境的变化，实现更为智能的开环控制。