| 1. | The method and setting has been adopted by the spaceborne laser altimeter for 200km maximum range and the result is about 100km
使用本方法及装置，得到月球探测激光高度计原理样机测距能力为100km 。 |
| 2. | According to the parameters such as minimum detectable power , range and reflectivity of simulant target , meteorological visibility and optical efficiency , the maximum range of laser altimeter was figured out by the range - finding equation
将最小可探测功率、模拟目标距离、目标物反射率、光学效率等参数代入最大测程推算方程，得出激光高度计最大测程指标。 |
| 3. | Due to the uncertainty of factors such as far - range , atmospheric attenuation and operated target , a steady and reliable method and setting to characterize laser altimeter ' s performance is an important and difficult technology
由于测程远、大气衰减、被测目标物等不确定性因素，建立一种稳定可靠的激光高度计性能指标验证装置和方法，是一项重要的、必须解决的技术难点。 |
| 4. | Based on the model of resource survey spaceborne laser altimeter , the noncooperative regulable attenuation module , including angular measure setting , beam splitter , energy meter , attenuator and simulant target , was designed and founded
结合激光高度计原理样机，设计并建立了非合作目标可调衰减法模块，该模块包括角度测量装置、分束片、能量计、衰减器以及模拟目标物。 |
| 5. | According to the minimum detectable power required by the spaceborne laser altimeter for 200km maximum range and the analysis result of the effect between the maximum range and the equation ' s each parameter , the specifications for noncooperative regulable attenuation setting were fixed on
根据月球探测激光高度计实现200km所需的最小可探测功率，各影响因子与最大测程关系的分析，确定非合作目标可调衰减法装置的技术指标。 |
| 6. | The maximum range is the most important specification for a laser altimeter and 200km is the required level for the spaceborne laser altimeter in the lunar resources survey . in the paper , one kind of method and setting characterizing the laser altimeter ' s performance aiming at the specification of maximum range - noncooperative regulable attenuation was put forward and founded
中科院知识创新重大方向?月球资源探测卫星激光高度计，要求实现200km的对月测距能力，本文以地面验证激光高度计最大测程指标为目标，提出并建立一种激光高度计性能验证方法?非合作目标可调衰减法和装置。 |
| 7. | Satellite laser altimeter return waveform is sensitive to the vertical canopy structure and the change of underlying ground elevation . it is optimal for mapping forest structure . the return waveform and the processing method are described . the relationship between laser waveform and canopy structure parameters is explored ignoring the clumping effects . the clumping caused that structure parameters are different from the actual value . to solve this question , a model by 3 - d canopy structure parameters is needed
星载激光测高仪的回波信号能够灵敏反映地面植被组成和地表高度的变化,因此能够用于探测森林地貌;首先对星载激光测高仪的森林回波信号及其处理方法进行了介绍,探讨了在不考虑植被聚集情况下,植被组成与回波信号之间的关系;由于植被的聚集效应,例如树叶群集成树冠,会导致植被组成参数与真实值之间存在差异,这需要建立关于三维的空间分布模型加以解决。 |
| 8. | Based on the analysis of the effect on the maximum range of the equation ' s each parameter and the traditional method of extinction ratio , the noncooperative regulable attenuation - measure the minimum detectable power of laser altimeter on the condition of constant miss probability by attenuating the laser power transmitting to the diffuse reflected simulant target - was put forward
在传统的消光系数法基础上，根据对月测距方程各系数的影响权重分析，提出了非合作目标可调衰减法，即：通过对漫反射模拟目标，衰减出射激光功率，在一定的漏警概率条件下测量激光高度计的最小可探测功率。 |
