摘要
根据欧洲铁路信号标准组织制定的应答器报文FFFIS编码策略,设计实现传输报文的解码,并针对传输过程中的随机噪声,提出一种序列中值滤波算法,在传统解码算法前先进行滤波处理,去除噪声影响。该解码算法已在手持式应答器报文检测仪上得到实际应用,与常规算法相比,在有噪声影响环境中能有效提高报文解码成功率。
According to the FFFIS coding strategy of European rail signal standards organization,we design and implement the decoding step of balise telegram. We also develope an algorithm of sequential median filter,which is used to eliminate impact of random noise during the transmission before starting traditional decoding. This algorithm has been used in hand-held balise telegram detector.It has been verified that it is more effectively than traditional decoding algorithm in the environment with random noise.
出处
《西华大学学报（自然科学版）》
CAS
2015年第6期36-41,共6页
Journal of Xihua University:Natural Science Edition
关键词
应答器报文
解码
中值滤波
balise telegram
decoding
median filter
