本文介绍了直接数字合成（DDS）技术在激光相位测距仪中的应用。
This paper introduces the application of direct digital synthesizers (DDS) technique in laser phase distance measurement.
介绍用相位测距仪实现波长标准及在大长度范围内传递长度单位尺寸的情况。
The situations of realizing wavelength standard with phase diastimeter and transmittinglength unit size within a large range are introduced.
使用该技术研制的数字激光相位测距仪具有操作简便、携带方便、性能可靠的特点，测相精度优于千分之一。
The apparatus of digital laser phase distance measurement by using the technique is reliable and easy to operate and carry. Especially the precision of phase is less than 1/1000 degree.
综合实验结果表明，这些电路设计对于提高相位式激光测距仪的测量精度是有效的。
The results of the experiment indicate that these circuit designs raise the measuring accuracy of the phase laser distance measuring system effectively.
周期误差是相位式光电测距仪的主要误差之一，它对测距成果的精度往往产生严重的影响。
Periodic error, one of the main errors occurring with phase-type optic-electronic rangers, often results in influences seriously affecting the accuracy of measured distances.
阐述了目标的漫反射特性对非合作目标相位式激光测距仪中光功率探测的重要性。
The importance of the diffuse reflectivity of the reflective target for the non-cooperative laser rangefinder is presented.
在相位激光测距仪中，信号初始相位的相对稳定性对测距仪的测量精度非常重要。
The initial phase relative stability of signal is very important to digital phase range finder.
激光脉冲测距仪的精度已提高到同相位式测距仪一样。
The accuracy of a pulse-type EDM1 is compatible with that of the phase-type instruments.
阐述了目标的漫反射特性对非合作目标相位式激光测距仪中光功率探测的重要性。
The fabrication process of glass and glass microsphere for laser cooperation target was studied.
阐述了目标的漫反射特性对非合作目标相位式激光测距仪中光功率探测的重要性。
The fabrication process of glass and glass microsphere for laser cooperation target was studied.
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