| 摘要: |
| 特征提取是辐射源个体识别技术的关键，也是实际应用中必须解决的首要问题。
从接收信号的暂态和稳态两个方面对现有的个体特征提取技术进行了综述，指出各种特征提
取技术的适用范围及关键问题。同时结合个体识别接收设备需要，对所提取的特征参量在工
程应用中的测量条件及局限性进行了归纳分析与对比。最后，指出了目前辐射源个体特征提
取技术存在的问题，以及个体识别技术未来研究方向。 |
| 关键词: 个体识别 信号特征 细微特征 特征提取 |
| DOI： |
|
| 基金项目:国家重点基础研究发展计划(973计划)项目( 2007CB310606) |
|
| An Overview of Individual Feature Extraction Techniques |
| ZHOU Bin,WANG Xiu-min,GUO Ran,LI Shao-bin,MAO Xing-peng |
| (Institute of Communication and Electronic Warfare,Harbin Institute of Techn
ology,Weihai 264209,China;City Institute,Dalian University of Technology, Dalian 116600,China) |
| Abstract: |
| Feature extraction is the key to emitter individual identification tech
nology, but also the primary issue that should be solved in practical applicatio
ns. From both transient aspect and steady-state aspect of the received signal, t
he exiting techniques of transmitter individual feature extraction are reviewed,
the application scope and key issues of different extraction techniques are sum
marized. Also, in combination with requirements of the individual identification
receiver, both the measuring conditions and limitations of the extracted featur
e parameters in engineering application are analysed and compared. Finally, the
problems of existing extraction techniques are presented, as well as certain fut
ure research directions of individual identification technology. |
| Key words: individual identification signal feature fine feature feature extraction |
《电讯技术》编辑部 