电子经纬仪光电信号处理技术研究  

Research on the Technologies of the Electric Theodolite Photoelectric Signal Processing

作　　者：奚彩萍[1] 姚琴芬[2] 

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003 [2]江苏城市职业学院,江苏南京210036

出　　处：《光电技术应用》2008年第4期49-51,73,共4页Electro-Optic Technology Application

摘　　要：对电子经纬仪光电信号处理关键技术进行了研究,改进了电源开关单元,完善了软件设计,实现了5种操作模式下的各种功能.经过系统的软硬件调试,从硬件上实现了系统所需角度信号的波形变换、脉冲信号的形成和基于FPGA的辨向计数,在此基础上进行软件细分,并分析了此细分方法的误差,测量精度达到2″,读数精度达到1″.The key technologies of the electronic theodolite optoelectronic signal processing are researched. The power source switching unit is improved, and the software design is changed and perfected, All the functions of five operational modes are implemented, By system software and hardware debugging, the waveform transformation and pulse signal formation of corresponding impulses and the counting and direction discrimination based on FPGA of the angle signal to implement are realized. Then, the software subdivision and the subdivision error are analyzed, the measuring precision of the theodolite is up to 2＂and the precision of reading data reaches to 1＂,

关 键 词：电子经纬仪 辨向计数 软件细分 精度 

分 类 号：P213[天文地球—测绘科学与技术] TN820.5[电子电信—信息与通信工程]