论文部分内容阅读
海上无线通信系统是一个综合性的通信系统,它要求系统在海面极限环境条件下,能够实现实时互连、互通、互操作。不仅要求提供常规业务,如话音、数据,还可以传输多媒体宽带业务,同时满足抗干扰、抗衰落、保密的需求,这就需要扩频、自适应、软件无线电等技术的广泛运用。本文从无线信号传播原理和TDD移动通信系统延时机制两方面出发分析基站远距离覆盖的能力瓶颈,对海面宽带应急通信系统覆盖基站的规划提出一些建议策略。
Offshore wireless communication system is a comprehensive communication system, which requires the system in the sea under the conditions of extreme conditions, enabling real-time interconnection, interoperability and interoperability. Not only requires the provision of conventional services, such as voice and data, but also multimedia broadband services, while meeting the requirements of anti-jamming, anti-fading and confidentiality, which require extensive application of technologies such as spread spectrum, adaptive and software radio. This paper analyzes the capacity bottleneck of long distance coverage of base station from two aspects of wireless signal propagation principle and TDD mobile communication system delay mechanism, and puts forward some suggestions for the planning of coverage of base station with broadband emergency communication system.