现代电子技术2018，Vol.41Issue(3)：30-35,40,7.DOI:10.16652/j.issn.1004-373x.2018.03.008
1090ES关键信息解码算法优化及实现
Optimization and implementation of key message decoding algorithm for 1090ES
摘要
Abstract
Taking the aircraft position message of the 1090ES automatic dependent surveillance-broadcast(ADS-B)system as the signal source,the microcontroller with ARM Cortex-M4 kernel is adopted as the hardware platform. In order to satisfy the requirements of current air traffic control for its data processing real-time performance and accuracy,the key messages(such as latitude,longitude and height)of the aerial target aircraft are decoded. The advantages and disadvantages of the available look-up table methods for decoding are analyzed. The formula method used to decode the height information in ADS-B system′s posi-tion massage is summarized and realized. The algorithm was verified with experiment in actual data environment. The experimen-tal results show that the algorithm can eliminate the conventional algorithms′ disadvantages(such as the cumbersome procedure and high memory resource occupation),and has convenient and efficient software and hardware implementation.关键词
ADS-B/Cortex-M4:CPR/C模式高度应答码/CRC校验/公式法/解码Key words
ADS-B/Cortex-M4/CPR/height answer-back code of C mode/cyclic redundancy check/formula method/decoding分类
信息技术与安全科学引用本文复制引用
张鹏,何光亮..1090ES关键信息解码算法优化及实现[J].现代电子技术,2018,41(3):30-35,40,7.基金项目
中央高校基本科研业务费资助项目(2000340454/Y17-35) （2000340454/Y17-35）
中国民航局科技项目(MHRD201004) Project Supported by Fundamental Research Funds for the Central Universities (2000340454/Y17-35), Civil Aviation Administration of China Science and Technology Project (MHRD201004) （MHRD201004）
