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satellite carrying
相关语句
  卫星搭载
     Effect of Retrieved Satellite Carrying of Rice Seeds on Main Characters of Their Offsprings
     返地卫星搭载水稻种子对后代主要性状变异的影响
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  “satellite carrying”译为未确定词的双语例句
     The satellite carrying master oscillator (SCMO) is non-coherent with the frequency standard at the ground tracking station in the non-coherent Doppler system.
     非相干多普勒跟踪系统中 ,星载主振器与地面跟踪站的频率基准不相干。
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  相似匹配句对
     SATELLITE & NETWORK
     《卫星与网络》杂志征稿启事
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     3 satellite.
     并通过了亚洲3号卫星的200多个电台的码流测试。
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     (3)carrying
     (3)培养幼儿园新教师专业成长的自觉意识;
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     GROWTH AND DEVELOPMENT OF LATER GENERRATION SILKWORM AFTER THE EGGS CARRYING BY SATELLITE
     利用返回式卫星搭载家蚕卵对其后代生长发育的影响
     Two strongest hybridization signals were detectedcorresponding to the NOR region of the satellite-carrying chromosomes.
     随体染色体上有2个强的杂交信号,分别分布在两条染色体的随体处,还有一条随体染色体由于随体的丢失导致rDNA位点的丧失。
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  satellite carrying
The Solar Radiation and Climate Experiment, SORCE, is a satellite carrying four scientific instruments that measure the total solar irradiance and the spectral irradiance from the ultraviolet to the infrared.
      
An important example of a coupled liquid-solid system is a satellite carrying fuel.
      
The efficiency of using the light pressure of solar radiation for increasing the semimajor axis of the orbit of an Earth Satellite carrying a solar sail is estimated.
      
The attitude motion of an artificial satellite carrying a strong magnet is studied.
      
One Class of Motions for a Satellite Carrying a Strong Magnet
      
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Sea ice is widely recognized as having a strong influence on global environment system.Its high albedo lessens the absorption of solar radiation;its strong insulation effect restricts exchange of heat,mass and momentum between ocean and atmosphere;and its rejection of salt during freezing and aging alters the salinity content of the upper ocean.This survey is limited to discuss the history of Antarctic sea ice observation,especially emphasized on the developments since satellite era. Scientists had realized...

Sea ice is widely recognized as having a strong influence on global environment system.Its high albedo lessens the absorption of solar radiation;its strong insulation effect restricts exchange of heat,mass and momentum between ocean and atmosphere;and its rejection of salt during freezing and aging alters the salinity content of the upper ocean.This survey is limited to discuss the history of Antarctic sea ice observation,especially emphasized on the developments since satellite era. Scientists had realized Antarctic sea ice even before they set foot on the continent itself.But until now,Antarctic sea ice zone around 55-65°S remains the most data sparse latitude range over the globe for conventional meteorological observations.Changes in the Antarctic sea ice zone may be among the most important of the global changes taking place. Visible and infrared imagery has been available from the NOAA satellite series since the launch of NOAA 2 in October 1972.The NOAA 2-5 satellites carried two-channel Very High Resolution Radiometers(VHRRs),which have since been succeeded by four or five-channel Advanced Very High Resolution Radiometers(AVHRRs).The resolution of AVHRR image is approximately 1.1km.The usefulness of the AVHRR imagery for sea ice studies is hindered by the obscuring effect of cloud cover. The first Electrically Scanning Microwave Radiometer(ESMR) aboard the Nimbus 5,which launched in December 1972 provided global,microwave coverage.It has several decided advantages over the observation in the visible and infrared wavelenths.Specially the microwave data are not obscured by cloud.The value of microwave observation for sea ice studies derives from the sharp contrast between the microwave emissivities of sea ice and open water.The Scanning Multichannel Microwave Radiometer(SMMR) allows the possibility of determining not only sea ice concentration but also additional parameters,such as ice temperature,snow cover,multiyear ice fraction and so on.Like the SMMR instruments,the active-microwave Synthetic Aperture Rader(SAR) has large potential for sea ice studies. The in situ observation for Antarctic sea ice is not negligible.It is the only way to know the truth,which is vital for calibrating satellite data. Weekly ice chart for the Antarctic have been produced in near real time by the Navy-NOAA Joint Ice Center(JIC) since January 1973.Commonly based on JIC ice chart,different Antarctic sea ice data sets give the ice areas vary significantly.Attention must be paied when these data sets are used.

海冰通过其对地面反照率的作用以及对大气和海洋之间热交换的局地障碍和对世界海洋环流的作用在全球热平衡和气候变化中起着重要的作用。南极海冰又因其极为显著的时空变化引起越来越多的关注。海冰的观测是海冰研究的重要内容 ,本文综述了南极海冰观测的发展过程 ,着重介绍了卫星在探测南极海冰方面的重要进展 .

The investigation of the SAR application became increasingly important with the launch of various satellites carried SAR sensors.The geometric distortion of SAR image in alpine terrain is more complex caused by the sidelooking imaging technique and by terrain undulation,which cannot be rectified using regularly method,such as two dimensional polynomials by use of ground control points.In this paper,the correcting method of geometric distortion...

The investigation of the SAR application became increasingly important with the launch of various satellites carried SAR sensors.The geometric distortion of SAR image in alpine terrain is more complex caused by the sidelooking imaging technique and by terrain undulation,which cannot be rectified using regularly method,such as two dimensional polynomials by use of ground control points.In this paper,the correcting method of geometric distortion in alpine terrain using fly parameters and DEM was introduced ,based on the imaging geometry of SAR image.The algorithm of correcting the distortion was presented,according to the analysis of the error’s resource of distortion caused by terrain height variation.An experiment to test this algorithm was carried out by using the ERS1 SAR image in Banff,Canada.The result showed this algorithm produces high precision result to correct the geometric distortion in alpine area.

随着搭载合成孔径雷达的各种卫星不断发射,SAR的研究越来越受到重视。由于SAR数据独特的成像方式,山区地形的星载SAR图像几何形变十分复杂。通常应用控制点,采用多项式拟合的方法已经无法将其改正。依据SAR的几何成像模型,利用有关卫星轨道参数和数字高程模型,进行山区地形SAR影像的几何纠正研究。研究利用少量轨道参数和DEM数据,通过坐标变换和投影成像误差纠正建立正确的坐标位置,并采用邻近元采样法完成几何纠正。以上方法应用于山区ERS-1/SAR影像的处理试验结果表明,该方法能够用于山区复杂地形的几何纠正,其误差小于2个像元

A method for quantitative evaluation and qualitative analysis to the performance such as detected backscattering signal, optical background noise and signal-to-noise ratio(SNR) of the airborne laser scanning rangefinder is proposed. The problems such as the relations between SNR and detected signal, background noise and detected range are discussed. The ratio of threshold-to-noise for constant probability of false alarm is also given. All of these can be used as a scientific basis for the use in the fields of...

A method for quantitative evaluation and qualitative analysis to the performance such as detected backscattering signal, optical background noise and signal-to-noise ratio(SNR) of the airborne laser scanning rangefinder is proposed. The problems such as the relations between SNR and detected signal, background noise and detected range are discussed. The ratio of threshold-to-noise for constant probability of false alarm is also given. All of these can be used as a scientific basis for the use in the fields of remote sensing as well as surveying and for the improvement of airborne laser scanning ranging system, the analysis method can be generalized for different airborne or satellite carried laser scanning rangefinder.

本文对机载激光扫描测距系统的探测信号功率、背景噪声、信噪比等性能以及它们之间的关系等进行了定量化的评估和定性的分析,探讨了探测信噪比与测量距离、恒虚警概率探测时阈值/噪声比等问题,为机载激光扫描测距系统在遥感和测绘中的使用及系统性能的改进提供了科学的参考依据,其分析方法具有普遍意义,可用于不同的机载或星载激光扫描测距系统的分析。

 
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