搜索结果: 1-15 共查到“Swarm”相关记录49条 . 查询时间(0.093 秒)
Swarm系列卫星非差运动学厘米级精密定轨
Swarm系列卫星 精密单点定位 非差运动学定轨 批处理最小二乘估计法 厘米级
2021/4/2
采用2015年5月24日—30日的Swarm星载GPS双频观测数据，基于Melbourne-Wübbena（MW）和消电离层线性组合，在精密单点定位技术的基础上，采用批处理最小二乘估计法对不同轨道高度的Swarm系列卫星进行非差运动学精密定轨。利用星载GPS相位观测值残差、与欧空局发布的简化动力学轨道对比，以及SLR检核3种方法对Swarm系列卫星非差运动学定轨结果进行精度评估。结果表明：①Swa...
PARTICLE SWARM OPTIMIZATION BASED APPROACH TO ESTIMATE EPIPOLAR GEOMETRY FOR REMOTELY SENSED STEREO IMAGES
Fundamental Matrix Particle Swarm Optimization Epipolar Geometry Remote Sensing Random Sample Consensus Stereo Vision
2019/2/27
A novel particle swarm optimization based approach for the estimation of epipolar geometry for remotely sensed images is proposed and implemented in this work. In stereo vision, epipolar geometry is d...
基于SWARM双星观测的场向电流的经度变化
场向电流 太阳光照 地磁倾角
2019/2/27
本文利用SWARM A和C双星高精度的矢量磁场数据研究了不同季节高纬地区场向电流（FACs）随地磁经度和地方时的变化情况.研究发现：在南北半球，FACs存在明显的经度变化，南半球FACs的变化强度大约是北半球的1.2~3.2倍.利用潮汐谱分析法我们发现FACs中占主导的非迁移潮汐分量为DW2和D0.在春秋和夏季半球，DW2波更为明显.D0波可用太阳光照的经度变化来解释，向阳侧靠近磁极的经度带比远离...
MULTI-PATCHES IRIS BASED PERSON AUTHENTICATION SYSTEM USING PARTICLE SWARM OPTIMIZATION AND FUZZY C-MEANS CLUSTERING
Particle swarm optimization Fuzzy c-means Taylor’s series expansion weighted mean Hamming distance Iris recognition system
2017/6/19
Locating the boundary parameters of pupil and iris and segmenting the noise free iris portion are the most challenging phases of an automated iris recognition system. In this paper, we have presented ...
Underwater robots developed by researchers at Scripps Institution of Oceanography at the University of California San Diego offer scientists an extraordinary new tool to study ocean currents and the t...
2017年ACM智能系统,元启发式方法和群体智慧国际会议(ISMSI 2017) （2017 International Conference on Intelligent Systems,Metaheuristics & Swarm Intelligence）
2017年 ACM智能系统,元启发式方法和群体智慧 国际会议
2017/1/10
Welcome to the official website of the 2017 International Conference on Intelligent Systems, Metaheuristics & Swarm Intelligence (ISMSI 2017). The Conference will be held in Hong Kong during March 25-...
We describe a lightweight algorithm performing whole-network authentication in a distributed way. This protocol is more efficient than one-to-one node authentication: it results in less communication,...
The precursory earthquake swarm in Greece
precursors swarm seismogenesis earthquake prediction Hellenic arc
2015/9/29
The Hellenic subduction region displays the same precursory swarm phenomenon as has been found in comparable regions of New Zealand and Japan. In the earthquake catalogue of the Aristotle University o...
Long-term geomagnetic changes observed n association with earthquake swarm activities in the Izu Peninsula,Japan
Geomagnetic field tectonomagneticsm earthquake swarm total force
2015/9/28
Anomalous crustal uplift has continued since 1976 in the Izu Peninsula, Japan. Earthquake swarms have also occurred intermittently off the coast of Ito since 1978. Observations of the total intensity ...
Beyond swarm intelligence: The Ultraswarm
Mobile - Wireless Communications Miniature helicopter Swarm Robotics
2015/7/29
This paper explores the idea that it may be possible to combine two ideas – UAV flocking, and wireless cluster computing – in a single system, the UltraSwarm. The possible advantages of such a system ...
THE SWARM ARCHIVING PAYLOAD DATA FACILITY, AN INSTANCE CONFIGURATION OF THE ESA MULTI-MISSION FACILITY
Swarm PDGS Multi-mission Infrastructure
2015/5/7
The Swarm mission consists of 3 satellites, each carrying an identical set of instruments. The scientific algorithms for processing are organized in 11 separate processing steps including automated ...
Some possible correlations between electro-magnetic emission and seismic activity during West Bohemia 2008 earthquake swarm
Some possible correlations electro-magnetic emission seismic activity West Bohemia 2008 earthquake swarm
2014/12/31
A potential link between electromagnetic emission (EME) and seismic activity (SA) has been the subject of scientific speculations for a long time. EME versus SA relations obtained during the 2008 eart...
利用SWARM卫星高低跟踪探测格陵兰岛时变重力信号
GRACE SWARM 高低卫星跟踪
2014/12/19
GRACE重力卫星任务即将结束,后续GRACE Follow-On卫星计划于2017年发射,在此期间,迫切需要一个新的卫星计划继续对全球时变重力场进行连续监测,以保证时变重力场信息时间序列的连贯性.SWARM计划包括三颗轨道高为300~500 km的近极轨卫星星座,类似于三颗CHAMP卫星,具有接替时变重力场探测的潜力.本文首先分析SWARM(模拟)、CHAMP、GRACE反演至60阶时变重力场球...
THE "SWARM" MODEL FOR THE AZIMUTHAL BRIGHTNESS VARIATIONS IN SATURN'S RING A
Saturn's rings. Photometry observation ring system The image calibration
2014/12/10
A number of researchers have observed asymmetric azimuthal variations in Saturn's ring A not seen in any other portion of the rings. In order to explore this effect, photometric observations of the ri...
Design of Non-Uniform Linear Array via Linear Programming and Particle Swarm Optimization and Studies on Phased Array Calibration
linear array linear programming particle swarm optimization side lobe level phased array calibration
2014/12/8
For a linear array, the excitation coefficients of each element and its geometry play an important role, because they will determine the radiation pattern of the given array. Side Lobe Level (SLL) is ...