Article(id=1149769461172973886, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149769458706723113, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2405481, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1721577600000, receivedDateStr=2024-07-22, revisedDate=1740672000000, revisedDateStr=2025-02-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1752056001226, onlineDateStr=2025-07-09, pubDate=1747497600000, pubDateStr=2025-05-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752056001226, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752056001226, creator=13701087609, updateTime=1752056001226, updator=13701087609, issue=Issue{id=1149769458706723113, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='14', pageStart='5705', pageEnd='6154', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752056000638, creator=13701087609, updateTime=1768456798957, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218559392753041779, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149769458706723113, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218559392753041780, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149769458706723113, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=5905, endPage=5912, ext={EN=ArticleExt(id=1149769461395272002, articleId=1149769461172973886, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Spatial Attention Deep Residual Network Based Fine-Grained Electromagnetic Spectrum Map Construction Method, columnId=1172606853226840582, journalTitle=Science Technology and Engineering, columnName=Papers·Electronic and Communicational Technology, runingTitle=null, highlight=null, articleAbstract=
The efficient utilization of electromagnetic spectrum resources has become a significant concern in the domain of wireless communications, with EMSM(electromagnetic spectrum map) playing a crucial role in visually representing spectrum usage within a specific task area and providing valuable support for the optimization of wireless networks. To address the challenges associated with generating fine-grained EMSMs under conditions of complex scenes and limited spatial point monitoring data, an improved DRN(deep residual network) model, ES-AFB(enhanced with a spatial attention feature block), was proposed. This model drew inspiration from image super-resolution techniques and leveraged the strong spatial characteristics of EMSMs to design a deep residual network capable of extracting the correlation and spectral features of EMSMs. The enhanced spatial attention feature block was utilized to mine the intrinsic implicit spatial features of coarse-grained EMSMs. Subsequently, the data size was reconfigured through the network’s multilayer up-sampling module, enabling the achievement of a more effective fine-grained image restoration. This approach allows for the generation of high-quality fine-grained EMSMs using limited coarse-grained monitoring data. The effectiveness of the algorithm is validated through simulation experiments, with the root-mean-square error of the EMSMs generated from actual data being found to be no more than 3%.
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当前,电磁频谱资源的高效利用是无线通信领域的热点问题,而电磁频谱地图(electromagnetic spectrum map, EMSM)能够可视化展示某任务区域内的频谱使用情况,为无线网络优化工作提供有效支持。针对场景复杂且空间点位监测数据有限条件下生成细粒度EMSM难度大的问题,提出了一种增强空间注意力特征块(enhanced spatial-attention feature block, ES-AFB)的改进深度残差网络(deep residual networks, DRN)模型,借鉴图像超分辨率思想并利用EMSM的强空间特性,设计深度残差网络提取EMSM的相关性和频谱特征,利用增强空间注意力特征块挖掘粗粒度EMSM的内在隐含空间特征,再通过网络的多层上采样模块重构数据尺寸,从而达到更好的细粒度图像恢复效果,能够利用有限的粗粒度监测数据生成高质量的细粒度EMSM。仿真实验结果验证了算法的有效性,利用实测数据生成EMSM的均方根误差不超过3%。
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谢佳炜(1993—),女,汉族,湖北黄冈人,硕士。研究方向:无线电通信与电磁频谱感知。E-mail:jiaweixie9301@163.com。
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谢佳炜(1993—),女,汉族,湖北黄冈人,硕士。研究方向:无线电通信与电磁频谱感知。E-mail:jiaweixie9301@163.com。
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Science Technology and Engineering,
2023,
23(33): 14264-14270., articleTitle=Fine-grained emotion classification based on BERT and multi-channel convolutional neural network, refAbstract=null)], funds=[Fund(id=1172984358303576299, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, awardId=62071481, language=CN, fundingSource=国家自然科学基金(62071481), fundOrder=null, country=null), Fund(id=1172984358370685165, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, awardId=61501471, language=CN, fundingSource=国家自然科学基金(61501471), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1172984352624488525, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, xref=null, ext=[AuthorCompanyExt(id=1172984352632877134, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352624488525, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. School of Operational Support, Rocket Force University of Engineering, Xi'an 710025, China), AuthorCompanyExt(id=1172984352637071439, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352624488525, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 火箭军工程大学作战保障学院, 西安 710025)]), AuthorCompany(id=1172984352750317653, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, xref=null, ext=[AuthorCompanyExt(id=1172984352758706261, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352750317653, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Chinese People's Liberation Army Unit 96743, Tianshui 741020, China), AuthorCompanyExt(id=1172984352762900566, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352750317653, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. 中国人民解放军96743部队, 天水 741020)]), AuthorCompany(id=1172984352834203738, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, xref=null, ext=[AuthorCompanyExt(id=1172984352846786651, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352834203738, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. College of Information and Communication, National University of Defence Technology, Wuhan 430000, China), AuthorCompanyExt(id=1172984352863563868, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, companyId=1172984352834203738, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. 国防科技大学信息通信学院, 武汉 430000)])], figs=[ArticleFig(id=1172984355568890035, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.1, caption=
Schematic distribution of sources and sensors in the radio mission area, figureFileSmall=OmoNgIcmO4vsl4jS2Skd5A==, figureFileBig=EwqT8hj+DtXKsUGge0WeEQ==, tableContent=null), ArticleFig(id=1172984355631804597, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图1, caption=
无线电任务区域内信号源及传感器分布示意图, figureFileSmall=OmoNgIcmO4vsl4jS2Skd5A==, figureFileBig=EwqT8hj+DtXKsUGge0WeEQ==, tableContent=null), ArticleFig(id=1172984355736662199, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.2, caption=
Construction of fine-grained electromagnetic spectrum from coarse-grained electromagnetic spectrum maps, figureFileSmall=llf8K0AUUui/rgU0SejyXA==, figureFileBig=Fe9S0Ttq+O6spXYD44/J/w==, tableContent=null), ArticleFig(id=1172984355900240058, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图2, caption=
由粗粒度电磁频谱地图构建细粒度电磁频谱地图, figureFileSmall=llf8K0AUUui/rgU0SejyXA==, figureFileBig=Fe9S0Ttq+O6spXYD44/J/w==, tableContent=null), ArticleFig(id=1172984355967348924, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.3, caption=
Network architecture for spectral posture inference methods based on spatial attention deep residual networks, figureFileSmall=8DKF021zTgfQvKjlnWzupQ==, figureFileBig=ag7ZawmzajBgy72A9/ho6g==, tableContent=null), ArticleFig(id=1172984356063817918, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图3, caption=
基于空间注意力深度残差网络的频谱态势推断方法网络架构, figureFileSmall=8DKF021zTgfQvKjlnWzupQ==, figureFileBig=ag7ZawmzajBgy72A9/ho6g==, tableContent=null), ArticleFig(id=1172984356114149568, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.4, caption=
AFB structure, figureFileSmall=ItWvUAs+B1dLWcNmjyntqg==, figureFileBig=gk096R6g9qYW21nf4fY/Mw==, tableContent=null), ArticleFig(id=1172984356172869826, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图4, caption=
AFB的结构, figureFileSmall=ItWvUAs+B1dLWcNmjyntqg==, figureFileBig=gk096R6g9qYW21nf4fY/Mw==, tableContent=null), ArticleFig(id=1172984356286116036, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.5, caption=
Schematic of enhanced spatial attention structure, figureFileSmall=I9M7tuAEZ2uOYxlPehVngg==, figureFileBig=IU8i1Jhs7B18L+h/HPzXIw==, tableContent=null), ArticleFig(id=1172984356395167942, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图5, caption=
ESA的结构示意图, figureFileSmall=I9M7tuAEZ2uOYxlPehVngg==, figureFileBig=IU8i1Jhs7B18L+h/HPzXIw==, tableContent=null), ArticleFig(id=1172984356483248328, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.6, caption=
Multi-scale up-sampling module, figureFileSmall=rBQPXWgJIH7shZzJwafb9w==, figureFileBig=yQBZsQq+6xS9kC9kYnzz3w==, tableContent=null), ArticleFig(id=1172984356550357194, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图6, caption=
多尺度上采样模块, figureFileSmall=rBQPXWgJIH7shZzJwafb9w==, figureFileBig=yQBZsQq+6xS9kC9kYnzz3w==, tableContent=null), ArticleFig(id=1172984356634243276, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.7, caption=
Visualization effect of electromagnetic spectrum maps constructed by different methods, figureFileSmall=pGCeXwaAo3jja2cc30uJFA==, figureFileBig=58ehFBVQJt2a3T1KEFu5XQ==, tableContent=null), ArticleFig(id=1172984356718129358, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图7, caption=
不同方法构建的电磁频谱地图可视化效果图, figureFileSmall=pGCeXwaAo3jja2cc30uJFA==, figureFileBig=58ehFBVQJt2a3T1KEFu5XQ==, tableContent=null), ArticleFig(id=1172984356802015441, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.8, caption=
Schematic representation of PSRN performance indicators for different sampling cases, figureFileSmall=U2kZyXXuK7+HTuXOdMSVrQ==, figureFileBig=Gd/Eo6r7n17GxtY9jUp9Yg==, tableContent=null), ArticleFig(id=1172984356873318610, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图8, caption=
不同采样率情况下PSRN性能指标示意图, figureFileSmall=U2kZyXXuK7+HTuXOdMSVrQ==, figureFileBig=Gd/Eo6r7n17GxtY9jUp9Yg==, tableContent=null), ArticleFig(id=1172984356932038868, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.9, caption=
Schematic representation of MAPE performance index at different sampling rates, figureFileSmall=0VhfWjsuxRPhlgmRSQisLg==, figureFileBig=jyYxvj/KSzelzECaG6spoQ==, tableContent=null), ArticleFig(id=1172984356994953430, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图9, caption=
不同采样率情况下MAPE性能指标示意图, figureFileSmall=0VhfWjsuxRPhlgmRSQisLg==, figureFileBig=jyYxvj/KSzelzECaG6spoQ==, tableContent=null), ArticleFig(id=1172984357112393944, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Fig.10, caption=
Ablation experiment, figureFileSmall=+dZ9XkjN/WwuyLEMK0JUXQ==, figureFileBig=KioluTEXlZ8YRX8DEsJugw==, tableContent=null), ArticleFig(id=1172984357192085722, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=图10, caption=
消融实验示意图 PSNR为峰值信噪比;MAPE为平均绝对百分比误差
, figureFileSmall=+dZ9XkjN/WwuyLEMK0JUXQ==, figureFileBig=KioluTEXlZ8YRX8DEsJugw==, tableContent=null), ArticleFig(id=1172984357255000282, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Table 1, caption=
Attention feature block (AFB) parameter settings
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| 层名称 | 输入尺寸 | 输出尺寸 |
| 3×3卷积层 | | |
| 3×3卷积层 | | |
| ESA模块 | | |
), ArticleFig(id=1172984357393412315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=表1, caption=
注意力特征块(AFB)的参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 层名称 | 输入尺寸 | 输出尺寸 |
| 3×3卷积层 | | |
| 3×3卷积层 | | |
| ESA模块 | | |
), ArticleFig(id=1172984357456326877, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Table 2, caption=
Enhanced spatial attention (ESA) module parameterization
, figureFileSmall=null, figureFileBig=null, tableContent=
| 层名称 | 输入尺寸 | 输出尺寸 |
| 卷积层 | | |
| 卷积层 | | |
| 池化层 | | |
| 卷积层 | | |
| 卷积层 | | |
| 卷积层 | | |
| 上采样层 | | |
| 卷积层 | | |
| Sigmoid激活层 | | |
), ArticleFig(id=1172984357527630046, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=表2, caption=
增强空间注意力模块(ESA)的参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 层名称 | 输入尺寸 | 输出尺寸 |
| 卷积层 | | |
| 卷积层 | | |
| 池化层 | | |
| 卷积层 | | |
| 卷积层 | | |
| 卷积层 | | |
| 上采样层 | | |
| 卷积层 | | |
| Sigmoid激活层 | | |
), ArticleFig(id=1172984357590544608, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Table 3, caption=
Sampling parameter settings on multiple scale
, figureFileSmall=null, figureFileBig=null, tableContent=
| 层名称 | 输入尺寸 | 输出尺寸 |
| 组卷积层 | | |
| 组卷积层 | | |
| 上采样层 | | |
), ArticleFig(id=1172984357678624993, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=表3, caption=
多尺度上采样参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 层名称 | 输入尺寸 | 输出尺寸 |
| 组卷积层 | | |
| 组卷积层 | | |
| 上采样层 | | |
), ArticleFig(id=1172984357812842722, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 空间注意力深度残差网络模型训练算法 |
| 1.初始化训练轮数 、批次大小 、训练数据数量 、学习率 ,网络参数 ,上采样倍率 |
| 2.初始化AFB模块个数 |
| 3.循环,共训练 个轮次: |
| 4. 循环,共迭代 次: |
| 5. 从训练数据中采样 个数据,输入数据 |
| 6. 对 进行卷积,得到 |
| 7. 进行AFB模块操作,重复 次: |
| 8. 对 进行卷积得到 送入ESA模块: |
| 9. 对 进行卷积得到 |
| 10. 对 进行卷积、池化及上采样后得到 |
| 11. 拼接 和 得到 |
| 12. 对 进行卷积操作后,与 进行叉乘得到 |
| 13. 拼接 和 ,得到 |
| 14. 得到经过AFB模块操作后的特征 |
| 15. 对 进行多路 倍上采样操作,得到数据 和 |
| 16. 拼接 和 得到 |
| 17. 拼接 和 ,得到推理结果 |
| 18. 计算损失 |
| 19. 更新网络参数 |
| 20. 结束该次迭代 |
| 21.结束循环,得到训练好的神经网络 |
), ArticleFig(id=1172984357884145892, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=, caption=
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 空间注意力深度残差网络模型训练算法 |
| 1.初始化训练轮数 、批次大小 、训练数据数量 、学习率 ,网络参数 ,上采样倍率 |
| 2.初始化AFB模块个数 |
| 3.循环,共训练 个轮次: |
| 4. 循环,共迭代 次: |
| 5. 从训练数据中采样 个数据,输入数据 |
| 6. 对 进行卷积,得到 |
| 7. 进行AFB模块操作,重复 次: |
| 8. 对 进行卷积得到 送入ESA模块: |
| 9. 对 进行卷积得到 |
| 10. 对 进行卷积、池化及上采样后得到 |
| 11. 拼接 和 得到 |
| 12. 对 进行卷积操作后,与 进行叉乘得到 |
| 13. 拼接 和 ,得到 |
| 14. 得到经过AFB模块操作后的特征 |
| 15. 对 进行多路 倍上采样操作,得到数据 和 |
| 16. 拼接 和 得到 |
| 17. 拼接 和 ,得到推理结果 |
| 18. 计算损失 |
| 19. 更新网络参数 |
| 20. 结束该次迭代 |
| 21.结束循环,得到训练好的神经网络 |
), ArticleFig(id=1172984357972226277, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=EN, label=Table 4, caption=
Experimental parameter setting
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| 参数 | 值 |
| 区域范围A/(km×km) | 2.2×3.2 |
| 发射功率 /dBm | [20,60] |
| 频率 /MHz | [900,1 800] |
| 阴影衰落标准差 /dB | 5 |
| 路径损耗因子 | 3 |
| 噪声功率 /dBm | -90 |
), ArticleFig(id=1172984358098055400, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769461172973886, language=CN, label=表4, caption=
实验参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 值 |
| 区域范围A/(km×km) | 2.2×3.2 |
| 发射功率 /dBm | [20,60] |
| 频率 /MHz | [900,1 800] |
| 阴影衰落标准差 /dB | 5 |
| 路径损耗因子 | 3 |
| 噪声功率 /dBm | -90 |
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