摘要
目前国内市场上主流光栅细分卡大都为国外公司制造,精度较高,但价格昂贵。文章中设计了一种兼容工业标准Vpp信号的光栅细分卡,采用高速DSP对光栅信号进行数字细分,针对光栅信号中谐波较大的特点,应用了数字滤波以提高细分精度;基于接口芯片PCI9052设计了通用PCI总线接口,实现了细分卡的模块化和通用化。
Today, most of the common grating subdivision-card in home market are provided by foreign company, which have good precision as well as expensive price. A grating subdivision-card is designed which compatible with standard industry Vpp signal, by adopting high speed DSP realized digital subdivision; to resolve the problem of interference wave, the digital filter theory is applied to improve subdivision precision. Based on PCI9052, a general PCI bus interface is designed to realize modularization and univers...
出处
《红外与激光工程》
EI
CSCD
北大核心
2008年第S1期242-245,共4页
Infrared and Laser Engineering
