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基于整体性治理理论，结合以“互联网+”为核心的网络及信息技术的发展和应用，创新性地提出构建全新的税收征管共享模式——税务共享服务生态圈。税务共享服务生态圈税将主管纳税机构、纳税主体以及与纳税相关的利益者等进行有机融合，以形成相互补充、相互制约的有机整体，降低信息不对称程度，提高涉税资源配置效率，促进全方位的信息共享、技术共享、服务共享，实现各参与主体的税务价值最大化。
提出了一种基于平行因子分析的时空非均匀采样下双基地MIMO雷达收发角及多普勒频率联合估计算法。首先计算K级非均匀延迟器输出数据的协方差矩阵并对该矩阵进行变换和去冗余处理，然后将新数据转化为三阶张量并对其进行降维处理，最后通过交替最小二乘和Root MUSIC算法估计出目标收发角和多普勒频率。该算法实现了时域和空域孔径自由度的二次扩展，提高了参数估计精度，降低了运算量。此外，通过最小冗余配置，实...
为解决雷达对低空目标角度估计精度不高的问题，提出一种基于时间反转（TR）多输入多输出（MIMO）雷达的低空目标波达方向估计算法。该算法先利用TR技术的聚焦性能，获得回波信号矩阵；然后根据MIMO雷达波形的分集特性，推导出TR MIMO雷达的虚拟阵列形式；再通过行列复用，采用双向空间平滑(FBSS)算法解相干，有效地提高了低空目标的DOA估计精度。实验仿真结果表明：在信噪比为-10 dB的条件下，该...
基于超材料的雷达吸波材料研究进展
超材料 雷达吸波材料 宽带
2019/4/16
雷达吸波材料能够有效地抑制透射波和反射波，因而被广泛应用于隐身、电磁屏蔽和兼容以及无线通信等领域。受制于材料的电磁频散特性，传统吸波材料的宽带低频吸波性能难以进一步提高。近年来，随着超材料结构设计的不断发展，基于超材料构架设计实现的宽带电磁吸波，由于具有更加灵活的电磁调控能力，因而在其电磁性能提升方面具有更大拓展空间。围绕雷达吸波超材料的最新研究进展，结合电磁吸波超材料的发展背景、设计原理和性能表...
运动模糊图像点扩散函数参数估计
运动模糊 点扩散函数 梯度倒谱 自相关
2018/11/20
为解决图像拍摄过程中相机与目标之间相对运动造成的图像模糊问题，提出一种基于梯度倒谱、最小二乘法与微分自相关结合的算法估计运动模糊图像点扩散函数（PSF）参数，通过对模糊图像梯度倒谱分析并结合最小二乘法估计出模糊方向，进而通过微分自相关法估计模糊尺寸。采用该算法对仿真模糊图像和实拍模糊图像进行PSF参数估计，当模糊方向角在0°~179°、模糊尺度在5~60个像素时，本文算法估计的模糊角度绝对误差小于...
A COMPARATIVE STUDY OF LAND SURFACE TEMPERATURE WITH DIFFERENT INDICES ON HETEROGENEOUS LAND COVER USING LANDSAT 8 DATA
LST Landsat 8 NDBI NDSI NDVI NDWI Land Cover
2019/2/27
The temperature rise in urban areas has become a major environmental concern. Hence, the study of Land surface temperature (LST) in urban areas is important to understand the behaviour of different la...
ROAD NETWORK MAPPING USING AIRBORNE LiDAR DATA
Road Airborne Laser Scanning (ALS) Intensity
2019/2/28
The accurate, detailed and up-to-date road information is highly essential geo-spatial databases for transportation, smart city and other related applications. Thus, the main objective of this researc...
GEOPHYSICAL PARAMETER RETRIEVAL FOR MICROWAVE C BAND SYNTHETIC APERTURE RADAR (SAR) DATASET USING INTEGRAL EQUATION MODEL
Microwave SAR Geophysical Parameters IEM Modelling
2019/2/28
The microwave remote sensing is highly useful, as it provides synoptic observation of the Earth’s surface or planetary bodies, regardless of day or night and the atmospheric conditions, propagation th...
RADAR CROSS SECTION CHARACTERIZATION OF CORNER REFLECTORS IN DIFFERENT FREQUENCY BANDS AND POLARIZATIONS
Corner Reflector Radar Cross Section Trihedral Dihedral Compact Antenna Test Range Facility Calibration
2019/2/28
Corner Reflectors (CR) are standard passive radar targets which offer one of the best solutions for SAR calibration. Radar Cross Section (RCS) of corner reflectors plays a vital role for estimation of...
ORTHOSEG: A DEEP MULTIMODAL CONVOLUTONAL NEURAL NETWORK ARCHITECTURE FOR SEMANTIC SEGMENTATION OF ORTHOIMAGERY
Deep Learning Supervised Image Segmentation Residual Networks
2019/2/28
This paper addresses the task of semantic segmentation of orthoimagery using multimodal data e.g. optical RGB, infrared and digital surface model. We propose a deep convolutional neural network archit...
SEMANTIC MODELING OF UTILITY NETWORKS IMPLEMENTATION OF USE CASES FOR DEHRADUN CITY
OGC CityGML data model Utility Network ADE data storage utility infrastructure use cases
2019/2/27
The current on-going boom in the field of Building Information Modeling (BIM) and 3D GIS is widely being explored for vast urban related applications, analyses and simulations. Large amount of 3D city...
GIS AND BIM INTEGRATION AT DATA LEVEL: A REVIEW
GIS BIM CityGML IFC data Integration models
2018/11/9
City Geography Markup Language (CityGML) and Industry Foundation Class (IFC) are the two most popular data exchange format for the integration of Geographic Information System (GIS) and Building Infor...
ORIGIN-DESTINATION-BASED PUBLIC TRANSPORT SERVICE GAP
Public transport Service gap Supply-Demand Origin-Destination Spatial disparity
2018/11/9
There are some studies that analyze public transport service gap by region from comparing supply and demand. However, due to data limitations, previous studies were limited in subdividing region-based...
DENDROGRAM CLUSTERING FOR 3D DATA ANALYTICS IN SMART CITY
Smart City Dendrogram Clustering 3D Spatial Database 3D GIS Data Analytics Data Structure
2018/11/9
Smart city is a connection of physical and social infrastructure together with the information technology to leverage the collective intelligence of the city. Cities will build huge data centres. Thes...
DEVELOPMENT OF A FRAMEWORK FOR IMPLEMENTING 3D SPATIAL DATA INFRASTRUCTURE IN OMAN – ISSUES AND CHALLENGES
2D and 3D Geospatial datasets 2D SDI 3D SDI
2018/11/9
The paper reviews that there are several issues and challenges in order to implement full 2D and 3D Spatial Data Infrastructure (SDI) in Oman. The state of current 2D SDI and 3D geospatial data has be...