外调制高精度激光测距方法研究 关键词 ：激光测距，外调制激光测距，激光测距精度； [gap=856]Key words: laser ranging, external modulation laser ranging, laser ranging accuracy;
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As an important feature, the characteristics of echo stretching affects SNR of received laser echo signal and ranging accuracy.
脉冲展宽特性是激光回波的重要特性，其影响到回波接收信噪比和测距精度。
In this paper, a circular-scan time analyzer to be used in the satellite laser ranging system with ranging accuracy of submillimeter, has been developed.
在本文中，我们设计并研制了用于毫米级精度人卫激光测距的圆扫描时间分析系统。
So, the paper presents the time scale amplifying method to enhance the accuracy of the pulse laser ranging.
而高精度脉冲激光测距系统往往难以达到低成本和便携的要求。
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