红外光幕靶信号采集与调理电路设计  

Design of signal collection and conditioning circuit for infrared light-screen target

作　　者：信强[1] 刘群华[1] 赵新林 韩峰[1] 

机构地区：[1]西安工业大学陕西省薄膜技术与光学检测重点实验室,陕西西安710032 [2]西安北方秦川集团有限公司,陕西西安710032

出　　处：《电子设计工程》2010年第4期99-101,共3页Electronic Design Engineering

摘　　要：针对PDF文件的特点,应用pdfbox开源库对PDF文件进行解析,去除PDF文件的文件头、交叉引用表以及文件尾等额外的文档描述信息得到目标信息。在研究不确定性理论的基础上,确定初始证据各种特征的可信度计算方法,通过推理网络及证据理论的推理算法,得到各个证据的可信度,最后比较各个证据可信度,对论文元数据进行抽取。实验表明,各类元数据的查全率都在87%以上,查准率都在92%以上,与常用的正则表达式方法相比准确率提高了10%以上,大幅提高了工作效率。To improve the accuracy and stability testing of light screen, a new adjustment circuit of infrared light-screen target are designed. The paper describes the principle and design methods of adjustment circuit of infrared light-screen target are designed in detail. The launch part of the system design used constant current source circuit connection to improve the stability of the light screen ,the amplifier part used a three-amplifier circuit,easily follow-up to the circuit processing. The experimental results show that the system of live-fire test ranges to less than 1% accuracy. Compared with photoelectric detection system in the past, the stability and accuracy were improved obviously.

关 键 词：红外 光幕靶 靶场测试 弹丸 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]