机载窄带多路视频传输系统设计  

Design of Multiple Video Narrow-bandwidth Data Transmission System

作　　者：宫继强 黄鲁[1] 

机构地区：[1]中国科学技术大学电子科学与技术系

出　　处：《电子技术（上海）》2011年第1期56-58,共3页Electronic Technology

摘　　要：为了满足两路视频的实时窄带无线传输要求,设计并实现了一种JPEG2000视频压缩解压缩与多路数据传输系统。系统总线带宽为3.84Mbit/s,视频信号采集、压缩、下传、回放的延时控制在300ms以内。本系统由ADV202来完成视频压缩与解压缩,由FPGA来实现两路视频数据和一路遥感数据的封装及传输。用ATmega128L单片机来完成整个系统的控制。与传统的数据复分接相比,本系统采用总线竞争的数据传输方式,提高了数据传输的带宽利用率,并且满足了视频传输的实时性与稳定性的要求。A multiple JPEG2000 video data transmission system is designed to meet the demands of high real-time, wireless narrow-bandwidth transmission of two channels of video. The bandwidth of the system bus is 3.84Mbit/s, and the delay of the video transmission requires less than 300ms. JPEG2000 is the standard of video compression and decompression, and it uses ADV202 to complete video compression and decompression, and uses FPGA to realize the package and transmission of two channels of video and one channel of remote sensing dada. ATmega128L serves as the control part of the whole system. Compared with traditional multiplexing and demultiplexing ways, this system uses the data transmission of bus competition, which improves the bandwidth utilization and meets the demands for high real-time and stability.

关 键 词：JPEG2000算法 ADV202 总线竞争 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]