无线警报控制系统中的一种通信抗干扰技术  

A Kind of Anti-interference Communication Technology Applied for Wireless Alarm Control System

作　　者：陆茂林 沈忠良[2] 叶芝慧[3] 

机构地区：[1]南京厚华通信设备有限责任公司,南京210007 [2]解放军理工大学通信工程学院,南京210016 [3]东南大学移动通信国家重点实验室,南京210096

出　　处：《电信科学》2007年第12期67-70,共4页Telecommunications Science

摘　　要：在对扩频抗干扰技术深入研究和比较的基础上,本文提出了采用时频调制方案的通信抗干扰体制,设计并实现了兼有模拟语音和扩频数据两种通信方式的无线警报控制系统。性能分析和测试结果表明,与传统方案相比,该系统的输入门限指标改善了约20dB,实际可以抗50dB以下的强干扰。系统可靠性高,抗干扰能力强,运行效果良好。On the basis of the research and comparison of spectrum spread technologies, the mechanism of anti-interference communication adopted time-frequency shift keying is put forward. For wireless alarm control system, with analog voice and spectrum spread data communication is designed and implemented. The results of performance analysis and test show that, compared with traditional scheme, the proposed systems have gained about 20 dB improvement on input threshold, and can resist strong interferences which is beyond 50 dB. The total system operates with high reliability and high capability of anti-interference.

关 键 词：通信抗干扰 警报控制 扩频 调制解调器 时频调制 

分 类 号：TN973.3[电子电信—信号与信息处理]