lgs

In the detecting system of laser illumination and laser guide star ( LGS), the application of optical filter is an important approach to reduce background noise and improve signal-to-noise ratio ( SNR).

在激光照明和激光导星的探测系统中，运用滤光器（片）是抑制背景噪声、提高信噪比的重要途径之一。

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The structure and sequence of the rotating mirror is designed to enable the time gating for Raleigh LGS.

结合瑞利后向散射激光信标系统的时间选通需要，设计了高速转镜的工作时序和相应的镜面结构。

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At the end of the paper, an example of LGS simulation verification on a multiplier circuit design is given.

最后给出一个LGS应用于乘法器电路设计的仿真验证示例。

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All the advantages make LGS a very attractive subject in piezoelectric field.

诸多特性使得LGS成为压电领域广泛关注的对象。

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It appears that, in general, the acoustic velocity of the LGS crystal is about 1000m/ s smaller than that of α-SiO_2.The results can provide some theoretical guidances for design and application of the LGS crystal in BAW device.

计算了声速的最大值并与石英进行比较，结果表明LGS晶体的BAW传播速度一般比石英低1000m/s左右。为该晶体在声体波器件等方面的设计和应用提供了一定的理论指导作用。

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Study shows that LGS crystal is a kind of good piezoelectric material 、 electro-optic material and surface acoustic wave ( SAW) material.

研究表明，硅酸镓镧晶体是一种性能优异的压电材料、电光材料和声表面波材料。

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A short introduction was given about the principles of laser guide star ( LGS) in adaptive optics, and the ultra-narrow band filter techniques used in the application.

对自适应光学中激光导星的基本原理及系统中所需的超窄带滤光技术作了简单的介绍。

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In the experiments of Rayleigh laser guide star ( LGS) for adaptive optics on altazimuth Coud é telescope, the technology of LGS launched and received in the common aperture using polarizing beam splitting scheme is researched.

在地平式折轴望远镜上开展自适应光学瑞利激光导星实验，研究了信标光束同孔径发射和接收偏振分光技术。

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The beacon problem of adaptive optics ( AO) is settled by the promotion of laser guide star ( LGS), but the anisoplanatic error due to LGS will degrade the performance of AO system as well.

激光导引星概念解决了自适应光学技术的信标问题，同时带来了无法克服的非等晕性误差。

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The slowness curves of BAW in different planes of LGS were plotted. The propagating characteristics of SAW were also described.

从理论上分析计算了LGS声体波传播特性，画出BAW慢度曲线。

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The polarizing beam coupling and splitting technology for LGS is the main part of this study.

重点研究了用于激光导星的偏振耦合分光技术。

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