| 1. | The spot - beam design in the satellite - based cellular communication systems is discussed mainly
摘要讨论了卫星蜂窝通信系统的点波束设计。 |
| 2. | An extended kalman filtering ( ekf ) algorithm is designed for radiolocation in cellular communication system , simulation is conducted to examine its performance
摘要设计了一种蜂窝系统无线定位中使用的扩展卡尔曼滤波( ekf )算法，对其性能进行了仿真。 |
| 3. | At present , china unicom begins to construct 800mhz cdma cellular communication network in a large scale in china . so it is necessary for us to research the design of network planning for cdma cellular communication system
目前，中国联通开始在我国大规模建设800mhzcdma蜂窝通信系统，因此对cdma无线网络设计的研究变得十分必要。 |
| 4. | Power control and multiuser detection are two key technique to cope with the multiple access interference and near - far effect in cdma mobile cellular communication systems , power control is a resource allocation technique that balances the received powers of the users so that no one user creates excessive interference
功率控制和多用户检测是cdma移动通信系统中克服远近效应、多址干扰的关键技术。功率控制作为一种可以平衡接收功率，减小对其他用户干扰的技术得到广泛的应用。 |
| 5. | With the theory getting more matured and completed , sdr technology has been widely used in cellular communication system as well as other civil and military wireless communication systems . as one of the core technologies of sdr , digital receiver is also getting more and more extensive application
随着近年来软件无线电理论和应用趋于成熟与完善,软件无线电技术已经被越来越广泛地应用于雷达通信及各种军用和民用的无线通信系统中。作为软件无线电的核心技术之一,数字接收机技术也得到了越来越普遍的应用。 |
| 6. | Global system for mobile ( gsm ) is the first cellular communication system to specify digital modulation and network architectures and services . the number of countries that use the gsm system is more than 179 today . there are more than 200 million gsm mobile phone users in china the late 2002
全球数字移动通信系统( gsm )是世界上第一个对数字调制、网络层结构和业务做出详细规定的蜂窝通信系统，全世界有大约179个国家采用gsm标准建立了数字移动通信网络，我国从1995年开始建立gsm网络，发展至今已经拥有超过2亿的用户，成为全世界拥有gsm手机用户最多的国家。 |
