Abstract: It has been inferred and proved by the remote sensing equations under rational hypotheses in atmospheric physics that there is a linear correlation between the ground reflective brightness Wij and the total ...Abstract: It has been inferred and proved by the remote sensing equations under rational hypotheses in atmospheric physics that there is a linear correlation between the ground reflective brightness Wij and the total reflective brightness Rij received in different bands with a remote sensor. Nine models delineating the ground-space correlation between the ground spectra and the optimal bands of images of the typical gold deposits have been established based on the ground-space correlativity and field measurements of the ground spectra of the typical gold deposits in the Ailaoshan area. According to the 9 correlation models, TM images were inverted into ground-space correlation images that are related to the typical gold deposits within the area and then recognized by a computer. Research on the ground spectra and TM data in the Ailaoshan area shows that the correlation analysis of the ground spectra and TM data of gold deposits can be effectively applied to the prediction of gold deposits, location of prospecting targets, and extraction of imagery information of gold mineralization.展开更多
随着6G的快速发展,天地一体化信息网络成为实现全球无缝覆盖的关键。围绕6G天地一体化网络中的调制技术展开专利分析,重点研究了基于循环前缀(Cyclic Prefix,CP)/离散傅里叶变换(Discrete Fourier Transform,DFT)扩展的正交频分复用(Ort...随着6G的快速发展,天地一体化信息网络成为实现全球无缝覆盖的关键。围绕6G天地一体化网络中的调制技术展开专利分析,重点研究了基于循环前缀(Cyclic Prefix,CP)/离散傅里叶变换(Discrete Fourier Transform,DFT)扩展的正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)、基于滤波器组/多带滤波的OFDM、正交啁啾分复用(Orthogonal Chirp Division Multiplexing,OCDM)、正交时频空间(Orthogonal Time Frequency and Space,OTFS)和仿射频分复用(Affine Frequency Division Multiplexing,AFDM)这5种调制技术的专利申请趋势、技术热点及竞争格局。研究结果表明,2020年后6G调制技术专利申请量激增,中国在专利数量上占据主导地位,AFDM因其在高动态信道中的优异性能成为未来6G标准的有力候选。揭示了专利领域的技术空白,为后续研发和专利布局提供了战略参考。展开更多
随着第六代移动通信系统(6th generation mobile communication system, 6G)通信技术的发展,空天地一体化网络(Spaceair-ground integrated network, SAGIN)作为6G的重要组成部分,旨在实现卫星、空中平台与地面系统的无缝互联,在应急通...随着第六代移动通信系统(6th generation mobile communication system, 6G)通信技术的发展,空天地一体化网络(Spaceair-ground integrated network, SAGIN)作为6G的重要组成部分,旨在实现卫星、空中平台与地面系统的无缝互联,在应急通信、环境监测、智能交通等领域展现出巨大的潜力.然而,SAGIN具有异构结构、链路动态性高、资源分布广泛等特征,给网络的高效管理与优化带来巨大的挑战.近年来,人工智能(Artificial intelligence, AI)技术凭借强大的感知、学习与自主决策能力应用于通信网络,为SAGIN的智能演进提供了新契机.本文首先系统介绍SAGIN网络架构的基本组成与关键特征,并梳理当前主流AI技术在网络优化中的主要技术体系与适配优势,包括机器学习、图神经网络以及强化学习.其次,本文深入探讨了AI技术在SAGIN中智能资源管理、移动性管理与路由优化、空中平台路径规划、任务卸载与计算协同等典型场景中的应用与最新进展.最后,本文总结了AI技术应用在SAGIN网络中面临的挑战并展望了AI与SAGIN融合发展的未来方向.本文概述了AI技术在SAGIN网络中应用的优势与进展,旨在为AI赋能的SAGIN研究与应用发展提供技术参考.展开更多
文摘Abstract: It has been inferred and proved by the remote sensing equations under rational hypotheses in atmospheric physics that there is a linear correlation between the ground reflective brightness Wij and the total reflective brightness Rij received in different bands with a remote sensor. Nine models delineating the ground-space correlation between the ground spectra and the optimal bands of images of the typical gold deposits have been established based on the ground-space correlativity and field measurements of the ground spectra of the typical gold deposits in the Ailaoshan area. According to the 9 correlation models, TM images were inverted into ground-space correlation images that are related to the typical gold deposits within the area and then recognized by a computer. Research on the ground spectra and TM data in the Ailaoshan area shows that the correlation analysis of the ground spectra and TM data of gold deposits can be effectively applied to the prediction of gold deposits, location of prospecting targets, and extraction of imagery information of gold mineralization.
文摘随着6G的快速发展,天地一体化信息网络成为实现全球无缝覆盖的关键。围绕6G天地一体化网络中的调制技术展开专利分析,重点研究了基于循环前缀(Cyclic Prefix,CP)/离散傅里叶变换(Discrete Fourier Transform,DFT)扩展的正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)、基于滤波器组/多带滤波的OFDM、正交啁啾分复用(Orthogonal Chirp Division Multiplexing,OCDM)、正交时频空间(Orthogonal Time Frequency and Space,OTFS)和仿射频分复用(Affine Frequency Division Multiplexing,AFDM)这5种调制技术的专利申请趋势、技术热点及竞争格局。研究结果表明,2020年后6G调制技术专利申请量激增,中国在专利数量上占据主导地位,AFDM因其在高动态信道中的优异性能成为未来6G标准的有力候选。揭示了专利领域的技术空白,为后续研发和专利布局提供了战略参考。
