提高野外环境下CCD准直测角精度的方法
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摘要
针对传统CCD测角系统在野外环境下抗干扰能力弱的问题,本文提出了提高野外环境下CCD准直测角精度的一整套方案。该方案从测角系统的各个环节入手,分析了各自技术要求,在不同环节分别采取相应的技术措施,主要包括半导体激光器功率稳恒控制、光谱匹配与窄带滤波、CCD自动变扫描控制和CCD倍频插值细分等。实验结果表明,通过上述技术措施可以很好的加强野外环境下CCD测角系统的干扰能力,有效提高了系统测量精度。
Aimed at the weak anti-interference ability of traditional angle measuring system in the open field,a set of complete plan was proposed to enhance the angle measuring accuracy of CCD alignment in the wild environment. Beginning with each segment of angle measuring system,the plan analyzed various technological principles and also adopted corresponding technological steps in different segments,which mainly included technologies of semiconductor laser power constant control,optical spectrum matching and narrow-band filtering,CCD automatic changeable scan control and CCD frequency doubling interpolation subdivision,etc. The test result proves that the above mentioned method can enhance the anti-inference ability of CCD alignment in the wild environment and the system measuring accuracy.
Aimed at the weak anti-interference ability of traditional angle measuring system in the open field,a set of complete plan was proposed to enhance the angle measuring accuracy of CCD alignment in the wild environment. Beginning with each segment of angle measuring system,the plan analyzed various technological principles and also adopted corresponding technological steps in different segments,which mainly included technologies of semiconductor laser power constant control,optical spectrum matching and narrow-band filtering,CCD automatic changeable scan control and CCD frequency doubling interpolation subdivision,etc. The test result proves that the above mentioned method can enhance the anti-inference ability of CCD alignment in the wild environment and the system measuring accuracy.
引文
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[3]李成仁,宋昌烈,李淑风,等.半导体激光器输出波长随工作电流的实验研究[J].红外与激光工程,2003,32(2):144-147.LI Cheng-ren,SONG Chang-lie,LI Shu-feng,et al.Experimental investigation of the change of semiconductor laser output wavelength corresponding to operation current[J].lnfrared and Laser Engineering,2003,32(2):144-147.
[4]王华伟,刘波,曹剑中.CCD信号处理电路研究[J].科学技术与工程,2007,7(16):4153-4156.WANG Hua-wei,LIU Bo,CAO Jian-zhong.Design on CCD Signal Processing Circuit[J].Science Technology and Engineering,2007,7(16):4153-4156.
[5]杨博雄.CCD细分技术及其应用研究[D].北京:中国地震局地球物理研究所,2005.YANG Bo-xiong.CCD Subdivision Technology and Its Application Research[D].Beijing:Institute of Geophysics,China Earthquake Administration,2005.
[6]张闯,柏连发,张毅,等.单通道双谱夜视系统中的光谱匹配及滤光技术[J].光子学报,2007,36(9):1668-1671.ZHANG Chuang,BO Lian-fa,ZHANG Yi,et al.Spectrum Matching and Filtering Technique in Single Channel Dual-spectrum Night Vision System[J].Acta Photonica Sinica,2007,36(9):1668-1671.
[7]陈玖英,刘建国,张玉钧,等.调谐半导体激光吸收光谱自平衡检测方法研究[J].光学学报,2007,36(2):350-353.CHEN Jiu-ying,LIU Jian-guo,ZHANG Yu-jun,et al.Autobalanced Detection Based on Tunable Diode Laser Absorption Spectroscopy[J].Acta Photonica Sinica,2007,36(2):350-353.
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