| 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。 |
| 关键词: 飞行监视系统 实时数据传输 小波变换 信息压缩 EZW |
| DOI： |
|
| 基金项目: |
|
| A new flight monitoring method based on wavelet transform |
| LEI Guo-zhi,TU Ze-zhong |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China;Overall Design Institute,Equipment Academy of Air Force,Beijing 100076,China) |
| Abstract: |
| How to make full use of the limited channel bandwidth, real-time data compress
ion, and more aircraft flight parameters real-time transmission to ground testers, i
s important to improve the flight safety and the aircraft equipment. Based on wa
velet transform, a method for monitoring the flight is proposed and a c
ompression algorithm for the information compression is designed which is the ke
y technology of this method.Simulation result proves the feasibility of the algo
rithm. |
| Key words: flight monitoring system real-time data transmission wavelet transform information compression EZW |
