便携数字式相关器设计
|
摘要
介绍了一种便携数字式相关器。相关器由MCU处理器EP4CE6E22C8N,USB 2.0接口CY7C68013A、高速光纤收发器HFBR—2526/1527、模/数转换电路等组成。论述了系统工作原理,阐述了硬软件搭建方案和核心器件的实现过程。利用该相关器对峰峰值为0.8 n V的微弱量子电压正弦信号进行了放大、相关、数据存储及计算。结果表明:该数字式相关器数据传输速度快,可用于实现微弱信号的检测。
A portable digital correlator is introduced. It consists of MCU processor EP4CE6E22C8 N,USB 2. 0interface chip CY7C68013 A,high-speed optical transmitter and receiver HFBR—2526/1527,analog to digital conversion circuit,and so on. Working principle of device is described,configuration of hardware,design of software and realization of main device. Weak quantum voltage sinusoidal signal Whose peak-to-peak value is0. 8 n V is amplified correlated,data storage and calculated by digital correlator. The results show that the datatransmission speed of digital correlator is high and can be used for detection of faint signal.
A portable digital correlator is introduced. It consists of MCU processor EP4CE6E22C8 N,USB 2. 0interface chip CY7C68013 A,high-speed optical transmitter and receiver HFBR—2526/1527,analog to digital conversion circuit,and so on. Working principle of device is described,configuration of hardware,design of software and realization of main device. Weak quantum voltage sinusoidal signal Whose peak-to-peak value is0. 8 n V is amplified correlated,data storage and calculated by digital correlator. The results show that the datatransmission speed of digital correlator is high and can be used for detection of faint signal.
引文
[1]高晋占.微弱信号检测[M].2版.北京:清华大学出版社,2011:257.
[2]王琦.基于相关原理的微弱信号检测[D].成都:电子科技大学,2013.
[3]刘灿涛,赵伟.基于数字相关原理的相位差测量新方法[J].计量学报,2002,23(3):219-223.
[4]付云丰.四通道噪声温度计系统设计[D].北京:中国计量科学研究院,2013.
[5]薛园园,赵建领.USB应用开发实例详解[M].1版.北京:人民邮电出版社,2009:372.
[6]张建强,屈继峰.量子电压标定的噪声温度计系统设计[J].传感器与微系统,2012,31(9):83-85.
[2]王琦.基于相关原理的微弱信号检测[D].成都:电子科技大学,2013.
[3]刘灿涛,赵伟.基于数字相关原理的相位差测量新方法[J].计量学报,2002,23(3):219-223.
[4]付云丰.四通道噪声温度计系统设计[D].北京:中国计量科学研究院,2013.
[5]薛园园,赵建领.USB应用开发实例详解[M].1版.北京:人民邮电出版社,2009:372.
[6]张建强,屈继峰.量子电压标定的噪声温度计系统设计[J].传感器与微系统,2012,31(9):83-85.