However, for the wireless mobile communication systems, the radio channel is frequency selective and time-varying.
对于无线通信系统，无线信道不仅是频率选择性的，而且是时变的。
The future wireless mobile communication systems are expected to provide high-rate, high-quality and efficient data transmission.
未来无线移动通信系统对数据传输速率、通信可靠性及有效性提出了更高的要求。
The future wireless mobile communication systems are expected to provide ubiquitous, high-quality, and high-rate mobile multimedia transmission.
未来无线通信系统的目标是实现随时无缝的高质量、高速率的多媒体和数据业务传输。
With the development and maturity of network and wireless communication technology, the study of wireless mobile network application in control systems is becoming a hotspot.
随着网络技术和无线移动通信技术日趋成熟，无线移动网络在控制系统中的应用也成为研究热点。
The technologies of set-card separation and OTA (Over the Air) are both the important measures in mobile communication systems to realize the separation of the wireless services and terminals.
移动通信中手机的机卡分离技术和空中激活技术是实现电信服务与电信终端相分离的重要途径。
In a type of mobile communication systems, data transmits through two notes, GSN and PCU. Some delays and interruptions occur because of the wireless link.
在一类移动通信系统中，信息传输过程中经过GSN和PCU两个节点，由于无线链路的不稳定，产生了延时和断健。
The next generation wireless communication systems are expected to provide higher data rate and better quality of service in order to support the multimedia service in the complex mobile environment.
下一代无线通信系统要求能够在复杂的移动环境下提供更高的传输数据速率和更好的服务质量，以满足人们对多媒体业务日益增长的需求。
The next-generation wireless personal communication systems are expected to provide ubiquitous, high-quality, and high-rate mobile multimedia transmission.
下一代移动无线通信系统的目标是实现无所不在的、高质量的、高速率的移动多媒体传输。
Mobile ad-hoc networks (MANETs) represent complex distributed communication systems comprised of wireless mobile nodes.
移动自组织网络是由无线移动节点组成的复杂分布式通信系统。
D thesis, OFDM wireless broadband mobile communication systems channel estimation and equalization study, Ph.
OFDM无线宽带移动通信系统中信道估计与均衡技术研究，Ph。
In this paper, we investigate the Constrained Weighted Least Squares (CWLS) algorithms for Time Difference of Arrival (TDOA) based mobile user location in wireless communication systems.
本文主要对无线定位中基于TDOA的一种约束加权最小二乘算法进行了研究。
The new transmitter designed by this paper can be used in 2G/3G mobile communication system, Fixed Broadband Access Systems, Wireless LAN and so on.
基于陆地的宽带固定无线接入系统可以较低的成本提供宽带综合业务，促成本地通信的竞争，成为国际上的热点。
The next generation mobile communication systems aim at providing higher quality and data rate transmission at the minimum lost (power, bandwidth or complexity ) in finite wireless resource.
下一代移动通信的目标是以最低的代价（带宽、功率、复杂度）为日益扩大的用户群提供更加可靠、高速的宽带数据业务。
The next generation mobile communication systems aim at providing higher quality and data rate transmission at the minimum lost (power, bandwidth or complexity ) in finite wireless resource.
下一代移动通信的目标是以最低的代价（带宽、功率、复杂度）为日益扩大的用户群提供更加可靠、高速的宽带数据业务。
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