基于无线传感网的音频编码技术研究  

Audio Coding Technology Based on Wireless Sensor Networks

作　　者：项慨[1,2] 胡瑞敏[1] 曾园园[3] 

机构地区：[1]武汉大学国家多媒体软件工程技术研究中心,湖北武汉430072 [2]湖北经济学院信息管理学院,湖北武汉430205 [3]武汉大学电子信息学院,湖北武汉430079

出　　处：《武汉理工大学学报（信息与管理工程版）》2011年第6期909-912,共4页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：国家重大科技专项基金资助项目(2010ZX03004-003-03);国家自然科学基金重点资助项目(60832002);湖北省自然科学基金资助项目(2009CDB222;2010CDB08602)

摘　　要：针对单个传感器节点计算能力、存储空间有限,不适应多媒体信息的传输与处理的问题,提出了一些基于无线传感网的分布式音频编码方法,这些音频编码方法能够有效地压缩音频数据,节省无线传输带宽,降低音频编码复杂度,节省节点能量,延长无线语音传感网的工作周期,指出了无线传感网的音频编码技术中需要进一步研究的问题。As wireless sensor network growing continuously, the acquisition and processing of multimedia information have become increasingly important in the application of wireless sensor network. Single sensor node has limited computing power, and storage space is limited, so a new challenge was presented for the transmission and processing of muhimedia information. A number of distributed audio coding methods were proposed based on wireless sensor network. These methods can effectively compress audio data to save the wireless transmission bandwidth, reduce the complexity of the audio code to save energy of nodes, and extend lifespan of wireless sensor networks. The key technology issues that needed for further study were presented at last.

关 键 词：无线传感网 分布式音频编码 分布式信源编码 音频处理 

分 类 号：TN912.3[电子电信—通信与信息系统]