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MONITORING CYANOBACTERIA BLOOM IN TAIHU LAKE BY HIGH-RESOLUTION GEOSTATIONARY SATELLITE GF4
Cyanobacteria Bloom Taihu Lake GF4 Geosynchronous Earth Orbit Remote Sensing
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2018/5/15
The high-resolution remote-sensing satellite, GF4 PMS, of China's geosynchronous earth orbit was successfully launched on December 29, 2015. Its high spatial resolution and high temporal resolution al...
BLOCK ADJUSTMENT AND IMAGE MATCHING OF WORLDVIEW-3 STEREO PAIRS AND ACCURACY EVALUATION
WorldView-3 RPC Block Adjustment Model DSM Image Matching
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2018/5/17
WorldView-3, as a high-resolution commercial earth observation satellite, which is launched by Digital Global, provides panchromatic imagery of 0.31 m resolution. The positioning accuracy is les...
HIMAWARI-8 GEOSTATIONARY SATELLITE OBSERVATION OF THE INTERNAL SOLITARY WAVES IN THE SOUTH CHINA SEA
Himawari-8 Advanced Himawari Imager Internal Solitary Waves South China Sea
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2018/5/14
The new generation geostationary meteorological satellite, Himawari-8 (H-8), was launched in 2015. Its main payload, the Advanced Himawari Imager (AHI), can observe the earth with 10-minute interval a...
A THTEE-DIMENSIONAL VARIATIONAL ASSIMILATION SCHEME FOR SATELLITE AOD
AOD, Aerosol, Data assimilation, Chemical species, WRF/Chem
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2018/5/15
A three-dimensional variational data assimilation scheme is designed for satellite AOD based on the IMPROVE (Interagency Monitoring of Protected Visual Environments) equation. The observation operator...
FULLY CONVOLUTIONAL NETWORK BASED SHADOW EXTRACTION FROM GF-2 IMAGERY
Fully Convolutional Network Shadow Extraction Deep Learning GF-2 Building Shadows
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2018/5/15
There are many shadows on the high spatial resolution satellite images, especially in the urban areas. Although shadows on imagery severely affect the information extraction of land cover or land use,...
RESEARCH ON THE DIGITAL SIMULATION FOR THE WHOLE PROCESS OF MARS EXPLORATION
Digital simulation Mars exploration Sino-Mars Time-space benchmark Activity object model
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2018/6/4
China has paid considerable attention to space exploration and made great strides in the field. The first Chinese Mars Exploration Mission will be carried out in 2020. Digital simulation has been prov...
A SATELLITE IMAGE CLASSIFICATION APPROACH BY USING ONE DIMENSIONAL DISCRIMINANT ANALYSIS
Satellite Image Image Classification Linear Discriminant Analysis Dimension Reduction
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2018/4/18
The classification problem in the image processing field is an important challenge, so that in the process image pixels are separated into previously determined classes according to their features. Th...
A SATELLITE IMAGE CLASSIFICATION APPROACH BY USING ONE DIMENSIONAL DISCRIMINANT ANALYSIS
Satellite Image Image Classification Linear Discriminant Analysis Dimension Reduction
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2018/5/8
The classification problem in the image processing field is an important challenge, so that in the process image pixels are separated into previously determined classes according to their features. Th...
LAND USE/LAND COVER CHANGE DETECTION USING MULTI–TEMPORAL SATELLITE DATASET: A CASE STUDY IN ISTANBUL NEW AIRPORT
Multi-temporal satellite dataset Land Use/Land Cover Landsat-8 Sentinel 2A Change detection
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2018/5/8
In recent years, especially in metropolitan cities such as Istanbul, the emerging needs of the increasing population and demand for better air transportation capacity have led to big environmental cha...
空间目标卡尔曼滤波稀疏成像方法
ISAR成像 卡尔曼滤波 稀疏 定标
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2018/5/21
鉴于卡尔曼滤波器(KF)具有优良的信号估计性能，将KF与贪婪算法相结合，该文给出稀疏约束下的基于KF的空间目标逆合成孔径雷达(ISAR)成像方法。考虑到有些空间目标尺寸较大或包含大尺寸部件，或成像积累时间较长，会引入越分辨单元走动(MTRC)和方位向2次相位调制，首先对回波进行MTRC校正，然后构建包含2次相位的观测矩阵，通过使图像锐度最大化，估计目标转动角速度，获得聚焦目标图像，并将估计转速用于...
由于视距限制，对海上移动目标进行连续观测与定位探测难度较大.现有方法通过卫星和无人机等单平台对目标进行观测，不能解决面向海上移动目标连续观测的问题.针对当前单个平台的不足，本文构建了面向海上移动目标的空天协同连续观测模型，并提出了空天协同连续观测策略.空天协同连续观测策略抽取出卫星规划、无人机飞行计划、观测序列、区域预测以及路径规划等五个子问题，并对其进行建模求解.仿真实验表明，该方法大大降低了目...
现代作战条件下反坦克导弹武器系统的作战效能评估是该类武器装备作战使用的关键，传统的评估方法主要针对该系统中某一作战分系统的效能开展研究，不能充分反映武器系统作战能力的真实性和全面性.基于此，本文针对反坦克导弹武器系统的作战效能的评估方法进行研究首先构建反坦克导弹武器效能评估指标体系，包括了指标集与评估集，并根据不同专家的意见和建议优化该指标体系；然后结合组合赋权的思想，将熵权算法与分层赋权算法所得...
为了进一步提高卫星导航接收机对BOC(1,1)及其衍生类型调制信号的码鉴相的质量和跟踪能力，尤其是在高动态下的跟踪性能。该文提出一种基于局部相关函数插值的方法确定BOC(1,1)调制信号的码相位。该方法基于相关器阵列的结构，根据相关器阵列的输出值判断相关峰值的大致范围。利用广义延拓逼近的方法估计码相位的位置，同时在缺少延拓空间的情况下构造一个虚拟的相关器以完成对码相位的估计。该文具体分析了单侧相关...
DL-MPWFRFT与星座扰乱的卫星隐蔽通信系统
卫星隐蔽通信 加权类分数阶傅里叶变换 星座扰乱
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2018/2/8
针对4-WFRFT隐蔽通信系统,非目的接收机在一定时间内仍能有效的通过参数扫描获得解调参数的不足,提出了一种采用双层多项多参数加权分数阶傅里叶变换(DL-MPWFEFT)与星座扰乱的卫星隐蔽通信系统。在多参数WFRFT的基础上提出了DL-MPWFRFT,通过星座图的研究,分析了DL-MPWFRFT信号的隐蔽原理与特性,为进一步增加信号的隐蔽性,信号在DL-MPWFRFT变换后又增加了星座扰乱相位。...