华中科技大学学报：自然科学版2011，Vol.39Issue(9)：20-24,5.
弓网系统的无线电干扰特性研究
Radio-frequency interference characteristic of electrical multiple units pantograph and catenaries
摘要
Abstract
Frequency characteristic of radio-frequency interference （RFI） produced by electrical multiple units pantograph and catenaries was obtained through mathematic statistic method, after the measured data were analyzed. The probability distribution of the interference level was judged using Kolmogorov-Smirnov test, and then the corresponding parameters of probability distribution of the interference level was estimated using maximum likelihood estimation, and then the amplitude probability distribution was obtained. On that basis, the influence of RFI on bit error ratio （BER） of communica- tion system was obtained according to the characteristics of the interference source. Finally the useful signal field was obtained ensuring quality of communications system under the condition of BER.关键词
无线电干扰/频率特性/幅度概率分布/误码率/弓网系统Key words
radio-frequency interference （RED/frequency characteristic/amplitude probability distri-bution/bit error ratio （BER）/electrical multiple units pantograph and catenaries分类
信息技术与安全科学引用本文复制引用
单秦,闻映红,1蔡伯根..弓网系统的无线电干扰特性研究[J].华中科技大学学报：自然科学版,2011,39(9):20-24,5.基金项目
国家自然科学基金重点资助项目 （）
中央高校基本科研业务费专项基金资助项目 （）
