摘要
分析了矿井下定位通信系统存在的主要问题,提出一种新的跳频序列;将其应用在矿井下定位通信系统,提高了通信系统的性能.即利用素数法生成基序列,应用改进交织技术和无碰撞区码特性生成新的跳频序列.该序列在零位移附近其汉明相关值为零,在任意位移下具有和素数跳频序列相同性质.运用数学方法对新序列的性质进行了证明,并给出其构造实例和实验数据.现场实验表明,在矿井下定位通信系统中应用该序列有效降低了通信系统误码率,进而提高了矿井下定位通信系统的可靠性.
Main problems existing in location communication systems under mine （LCSM） are analyzed. A new frequency hopping sequence （FHS） is presented and is applied to LCSM, so the performance of LCSM is improved, The basic sequence is produced by prime method, and the FHS is produced by improved interleave technique and characteristics of no-hit-zone code, The value of Hamming correlation is zero near zero shifting, The FHS has the same natures as prime sequence when shifting is arbitrary. Natures of the new FHS are proved using mathematical method, Construction example and experiment data are presented. The spot experiment shows that error rate of the LCSM is effectively reduced with the new FHS, and the reliability of LCSM is enhanced.
出处
《信息与控制》
CSCD
北大核心
2008年第4期472-475,共4页
Information and Control
基金
黑龙江省自然科学基金资助项目(TF2005-05)
黑龙江省教育厅科学技术研究项目(11531336)
黑龙江科技学院青年基金资助项目(07-14)
关键词
跳频序列
交织技术
汉明相关
无碰撞区
frequency hopping sequence
interleave technique
Hamming correlation
no-hit zone
