摘要
针对微型无人机(MUAV)图像模拟传输的不足及图像实时、可靠的传输要求,提出了一套采用基于5/3提升小波的改进集合分裂嵌入块(SPECK)图像压缩算法、基于Turbo码的信道纠错编码及扩频技术的数字图像无线传输系统方案.在阐述本方案结构原理的基础上,着重讨论了它所涉及的关键技术及对策.实验结果表明,本方案具有图像压缩率高、运算速度快、实时性好、抗差错能力强及传输可靠等特点,适用于MUAV的特殊工作需求.
Aimed at the shortage of image analog transmission and the requirements of real-time reliable transmission for micro unmanned air vehicle, a digital image wireless transmission scheme is proposed, adopting the improved set partitioning embedded block coder（SPECK） compression algorithm based on 5/3 lifting wavelet; with the channel error correction coding based on Turbo code and spread spectrum. On the base of representing this scheme, the key technologies and countermeasures are discussed. Experimental results showed that this scheme possessed many characteristics, such as high compressibility, fast operating speed, good real-time, strong ability of resisting error etc, and is applicable for the specific needs of micro unmanned air vehicle.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2008年第12期1078-1082,共5页
Transactions of Beijing Institute of Technology
基金
国家部委预研基金项目(62301110404)
关键词
微型无人机(MUAV)
图像无线传输
5/3提升小波变换
集合分裂嵌入块编码算法
扩频技术
micro unmanned air vehicle （MUAV）
image wireless transmission
5/3 lifting wavelet transform
set partitioning embedded block coder （SPECK） algorithm
spread spectrum technology
