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星图     
相关语句
  star map
    Research on Rapid Star Map Matching Algorithm
    快速星图匹配算法的研究
短句来源
    A study on method for improving star map identifiability
    提高星图识别正确率的方法研究
短句来源
    A star map recognition method of star sensor with KMP algorithm
    用KMP算法进行星敏感器星图识别的方法
短句来源
    Improvement for Star Map Recognition of Star Sensor with KMP Algorithm
    用KMP算法进行星敏感器星图识别的改进方法
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    Improved star map identification algorithm based on Hausdorff distance
    一种基于Hausdorff距离的改进星图识别方法
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  star image
    A Method of CCD Star Image Simulation
    一种模拟CCD星图的方法
短句来源
    Subdivided locating method of star image for star sensor
    星敏感器中星图图像的星体细分定位方法研究
短句来源
    Centroid Locating for Star Image Object by FPGA
    用FPGA实现星图目标的质心提取
短句来源
    Algorithm for CCD Star Image Rapid Locating
    一种CCD星图星点快速定位算法
短句来源
    Research on Star Image Simulation and Star Extraction Method for CCD's Star Tracker
    基于CCD星敏感器的星图模拟和导航星提取的方法研究
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  star pattern
    The Analysis on Identification Method and Probability of Star Pattern
    星图识别方法及识别几率分析
短句来源
    AUTONOMOUS STAR PATTERN RECOGNITION ALGORITHM
    一种基于星座匹配的全天自主星图识别算法
短句来源
    Star Pattern Recognition Algorithm of SOFM Tri-Star Clustering
    SOFM星三角聚类的星图识别算法
短句来源
    Star pattern recognition algorithm based SOFM clustering function
    一种基于SOFM聚类的星图识别算法
短句来源
    Star Pattern Recognition Algorithm Based on Main Star Pair
    基于主星对的星图识别算法
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  stellar map
    The Method of Sample Construction Based on Stellar Map Recognition of the BP Network
    基于BP网络星图识别的样本构造方法
短句来源
    Research and Implementation of Real Time Preprocessing Method for Stellar Map
    星图实时预处理方法研究及实现
短句来源
    The method for sensing spacecraft attitude with stellar map is analyzed in the paper. The simulation experiments were carried out under the different conditions when star was brighter than 6 m with SAO star catalogue and the corresponding identification probability is achieved.
    分析了用恒星星图进行航天器姿态敏感的方法 ,并用 SAO星表在亮于 6 m的情况下 ,进行了多种条件下的仿真实验 ,获取了相应的识别几率。
短句来源
    Star sensor is a kind of high-accuracy posture sensitive measuring system, how to confirm star sensor's photo-spot of corresponding fixed star at the moment of photography, that is stellar map recognition, it is the key of posture measurement.
    星敏感器是一种高精度的姿态敏感测量系统,如何确定星敏感器上像点在摄影时刻所对应的恒星,即星图识别,是姿态测量的关键。
短句来源
    According as the specialty of stellar map recognition problem and the characteristic of the neural network technology, this article proposed a method of sample construction based on the method of stellar map recognition of the BP network. It can give consideration to the performance, efficiency and easy realization.
    本文根据星图识别问题本身的特点和神经网络技术的特性,提出了基于BP网络里图识别方法的一种可以兼顾性能和效率、利于实现的样本构造方法。
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      star map
    We also consider the star map on the dome over the altar in the Old Sacristy of San Lorenzo, Florence (c.
          
    In vitro, synapsin I was found to be an excellent substrate for sea star MAP kinase, p44mpk.
          
    Use a star map to find in the night sky the constellations that lend their names to the astrological signs.
          
      star image
    The star sensor optical system is usually aligned in a defocused position to calculate the luminance centroid of a star image in sub-pixel resolution.
          
    The influence of the axis-inclination on the transit time can be eliminated by the observation of the star image reflected by a mercury level together with the influence of the variable collimation produced by a flexion of the axis.
          
    A filter composed of a crossed pair of doubly refracting crystals and a polaroid, mounted at the focal plane of the telescope, divides each star image into two images of constant intensity ratio.
          
    adaptor-link device is developed to bring a star image at the focus of a Schmidt telescope to the slit of a spectrograph located at the observing floor, as well as part of the field, to a T.V.
          
    monitor, transfer the star image through the link to the slit of the spectrograph and guide the star during observation.
          
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      star pattern
    A four hydrophone array arranged in a symmetrical star pattern was used to measure the echolocation signals of four species of dolphins in the wild.
          
    About 80% of cat-scratch disease (CSD) infections occur in children, and CSD neuroretinitis (optic neuropathy with retinal exudates in a "macular star" pattern) mostly occurs in children and young adults.
          
    The significance of the star pattern the sulphur colloid scan in patients with obstruction is stressed, as the significance of this pattern not has been evaluated previously.
          
    Again all elements within five units of the maximum are identified as centers of a star pattern; this time two elements are thus identified.
          
    Each star pattern was planned to take 18 hours so that about 6 circuits were completed during each 5--day period.
          
    更多          
      其他


    In this paper,a model of “star background proportion-integ-ration guiding method” concerning the rendezvous of moving object withhigh speed out of the atmosphere.It includes CCD star image processing,guiding stars and object recognition,mathematical description of guidingmethod etc.Finally brief analysis of the simulation results is given.

    针对大气层外高速运动目标的交会问题,建立了“星背景比例—积分导引法”的完整模型,包括CCD 星图的处理,导引星和目标的识别,导引方案的数学描述等,对仿真计算的结果,也作了一些简要的分析。

    This paper describes the method and procedure of guide star catalog generation for star sensor. The relationship between the FOV density of guide stars, guide star pattern uniqueness and the success ratio of star pattern recognition is also discussed in detail based upon the statistical data. At last, the requirements are made concerning the FOV size and sensitivity of star sensor.

    本文首先讨论建立星敏感器用导航星星表的方法和过程,在此基础上统计出导航星的视场密度和导航星星图模式的唯一性并分析了它们与星图识别成功率之间的关系,由此对星敏感器的视场尺寸和灵敏度提出了要求。

    This paper makes a through study in the method of designing and realizing whole-orbitreal-time star simulator and advances the design plan of star simulator which can meet the requirement ofhardware-in-the-loop simulation of satellite attitude control system. Several questions about selecting thestar displayer,determining the design principle of optical system of simulator,realizing the system preci-sion and correcting the system error are also discussed in this paper.

    本文就全轨道实时星模拟器的设计及实现方法进行了深入的研究,提出了能满足卫星控制系统半物理仿真用的星模拟器设计方案;讨论了星图生成器选择依据;模拟器光学系统设计原则;系统精度的实现及误差修正方法等问题。

     
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