EMPIRICAL MODELING AND EVALUATION OF MULTI-PATH RADIO CHANNELS ON WHEAT FARMLAND BASED ON COMMUNICATION QUALITY
文献类型: 外文期刊
作者: Wu, Huarui 1 ; Miao, Yisheng 1 ; Li, Feifei 1 ; Zhu, Li 3 ;
作者机构: 1.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Informat Technol Agr, Natl Engn Res Ctr Informat Technol Agr, Beijing, Peoples R China
2.Minist Agr, Key Lab Informat Technol Agr, Beijing, Peoples R China
3.Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China
关键词: Channel modeling;Multi-path channel;Multi-scale effects;Wireless sensor network
期刊名称:TRANSACTIONS OF THE ASABE ( 影响因子:1.188; 五年影响因子:1.695 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Wheat is one of the main food crops in northern China, but the process of wheat production lacks accurate and effective control. Wireless sensor networks (WSN) can be used to monitor environmental information and enable appropriate decision-making for a well-controlled production system. The farmland environment varies with crop growth, which can affect the propagation of electromagnetic signals. To predict the path loss of WSN signals and guide WSN node deployment and topology control, a multi-scale modeling approach is proposed for radio channels on wheat farmland. The environmental factors are extracted based on the relationship between crop growth and signal propagation path. According to different crop sheltering conditions, a logarithmic model and a statistical distribution model are adopted. An empirical model of multi-path channel fading is established and evaluated based on experimental data. The results show that the average correlation coefficient of the large-scale model is >0.95 under the non-sheltering conditions. On the other hand, the mean variation of the multi-scale probability distribution model is <0.1 under the sheltering conditions. The results indicate that an accurate description of multi-path radio channels on wheat farmland is achieved.
- 相关文献
作者其他论文 更多>>
-
A Joint Knowledge Extraction Model for Tobacco Pest and Disease Prevention Based on BERT plus BA plus CASREL
作者:Liu, Kehan;Zhang, Feng;Wu, Qiulan;Sun, Ziruo;Liu, Kehan;Sun, Xiang;Wu, Huarui;Sun, Ziruo;Zhang, Feng;Wu, Qiulan;Sun, Xiang;Wu, Huarui
关键词:Tobacco pest and disease prevention; knowledge extraction; joint knowledge extraction model; Tobacco pest and disease prevention; knowledge extraction; joint knowledge extraction model
-
Swin-Unet plus plus : a study on phenotypic parameter analysis of cabbage seedling roots
作者:Li, Hongda;Zhao, Yue;Bi, Zeyang;Li, Hongda;Hao, Peng;Wu, Huarui;Zhao, Chunjiang;Hao, Peng;Wu, Huarui;Zhao, Chunjiang
关键词:Cabbage; Root phenotype; Attention mechanism; Semantic segmentation; Unet; Residual networks
-
A high-efficiency regulation method for optimal root zone temperature under different nitrogen fertilizer using discrete curvature
作者:Li, Huimin;Gao, Pan;Sun, Zhangtong;Hu, Jin;Wei, Ziyuan;Lu, Miao;Li, Huimin;Wei, Ziyuan;Lu, Miao;Gao, Pan;Sun, Zhangtong;Hu, Jin;Gao, Pan;Wu, Huarui
关键词:U -chord curvature; Chlorophyll fluorescence; Suitable RZT range; Dynamic regulation; Hydroponic tomato seedlings
-
Appearance quality identification and environmental factors tracing of Lyophyllum decastes for precise environment control using knowledge graph
作者:Zhou, Kai;Yu, Junyuan;Shi, Haotong;Hou, Jialin;Hou, Rui;Wu, Huarui
关键词:Lyophyllum decastes; Appearance identification; Residual neural network; Knowledge graph; Graph attention network
-
A review on enhancing agricultural intelligence with large language models
作者:Li, Hongda;Zhao, Chunjiang;Li, Hongda;Wu, Huarui;Li, Qingxue;Zhao, Chunjiang;Wu, Huarui;Li, Qingxue;Zhao, Chunjiang;Wu, Huarui;Li, Qingxue
关键词:Large language models; Agricultural knowledge; Knowledge integration; Knowledge Base; Intelligent question-answering
-
Overview of Pest Detection and Recognition Algorithms
作者:Guo, Boyu;Wang, Jianji;Guo, Minghui;Chen, Miao;Chen, Yanan;Guo, Boyu;Wang, Jianji;Guo, Minghui;Chen, Miao;Chen, Yanan;Guo, Minghui;Miao, Yisheng
关键词:smart agriculture; pest detection; pest recognition
-
Research on Positioning and Navigation System of Greenhouse Mobile Robot Based on Multi-Sensor Fusion
作者:Cheng, Bo;Li, Xiaoyue;Zhang, Ning;Song, Weitang;He, Xueying;Wu, Huarui
关键词:agricultural greenhouse; navigation robot; multi-sensor fusion; ultra-wideband; inertial measurement unit; odometry; rangefinder



