矿井数字移动通信新型帧同步保护方案  

New method of frame-sync protection for mine digital mobile communication system

作　　者：田子建[1] 孙继平[1] 王继林[2] 

机构地区：[1]中国矿业大学(北京校区)信息研究所,北京100083 [2]浙江财经学院信息学院,杭州310012

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第3期381-383,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：2003年度高等学校博士学科点专项科研基金资助项目(20030290019);国家自然科学基金资助项目(60073052)

摘　　要：介绍了一种在多址方式为TDMA的蜂窝制矿井数字移动通信系统中帧同步的实现,针对井下多径衰落大的特点,提出了一种新型的抗衰落帧同步保护方案。并将该方案与CCITT推荐的帧同步保护方案进行比较,分别阐述两个方案的工作机制并分析它们的工作特点,理论分析和井下试验都表明CCITT方案在多径衰落较严重的井下难以达到理想的通信效果。在误码率较高的井下环境,抗衰落保护方案的性能优于CCITT方案。The approach of frame-sync protection for TDMA digital mobile cell communication system in the underground is presented. In view of the fact that effect of multi-path fading underground is serious, an new approach of frame-sync protection is put forward accordingly. By comparison of this new approach of frame-sync protection with the one CCITT recommended, work mechanism and character of both frame-sync protection measures are analyzed respectively. Both underground experiment and theoretic analysis reveal that using CCITT approach is difficult to achieve satisfactory result in underground environment due to deep multi-path fading. The paper concludes that the performance of this new approach is better in the condition of underground where error rate is higher due to the heaviness of multi-path fading, but the CCITT is easy to accomplish.

关 键 词：矿井 移动通信 TDMA MSP430 帧同步保护 

分 类 号：TD65[矿业工程—矿山机电] TN929.4[电子电信—通信与信息系统]