摘要
如何充分利用有限的信道带宽和实时有效地压缩数据,将更多飞机飞行参数实时传输给地面试验人员,是提高飞行安全和改进飞机设备的重要手段。基于小波变换提出了一种监视飞行状态的新方法,借助小波分析在时域和频域同时具有良好的局部化性质对飞行数据进行有损和无损压缩,并通过飞机现有的VHF信道传输飞行数据。仿真结果验证了本方法的可行性。
How to make full use of the limited channel bandwidth, real - time data compression, and more air- craft flight parameters real - time transmission to ground testers, is important to improve the flight safety and the aircraft equipment. Based on wavelet transform, a method for monitoring the flight is proposed and a compres- sion algorithm for the information compression is designed which is the key technology of this method. Simulation result proves the feasibility of the algorithm.
出处
《电讯技术》
北大核心
2012年第8期1282-1285,共4页
Telecommunication Engineering
关键词
飞行监视系统
实时数据传输
小波变换
信息压缩
EZW
flight monitoring system
real-tirne data transmission
wavelet transform
information compression
EZW
