IONOGRAM

作品数：9被引量：17H指数：3
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相关期刊：《Advances in Biological Chemistry》《Wuhan University Journal of Natural Sciences》《Earth and Planetary Physics》《Open Journal of Earthquake Research》更多>>
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Pattern Recognition and Leading Edge Extraction for the Backscatter Ionograms by YOLOX
《Wuhan University Journal of Natural Sciences》2025年第1期69-78,共10页MA Jiasheng YANG Guobin JIANG Chunhua LIU Tongxin 
Supported by the National Natural Science Foundation of China(42104151,42074184,42188101,41727804)。
The ionosphere is an important component of the near Earth space environment.The three common methods for detecting the ionosphere with high frequency(HF)radio signals are vertical detection,oblique detection,and obli...
关键词：IONOSPHERE backscatter ionogram leading edge YOLOX pattern recognition 
Ionic Disorders Observed in Infants with Severe Wasting at the Yalgado Ouedraogo Teaching Hospital and the Charles de Gaulle Pediatric Teaching Hospital in Ouagadougou, Burkina Faso
《Advances in Biological Chemistry》2023年第6期247-255,共9页Arnaud Kouraogo Fabienne Soudre Caroline Yonaba Okengo Faouziatou Yagui Angele Kalmogho Ghislaine Yameogo Alice Kiba Raoul Karfo Ollo Da Emmanuel Zongo Cherileila Thiombiano Fatou Gueye Tall Abdoul Salam Ouédraogo Sanata Bamba Georges Anicet Ouédraogo Elie Kabré Fla Koueta Jean Sakande 
Introduction: A higher risk of death is associated with wasting in children if it is not treated properly. The objective of this study was to investigate the ionic disorders observed in infants suffering from severe w...
关键词：Severe Wasting EMACIATION Infants over 6 - 24 Months Blood Ionogram Burkina Faso 
Numerical simulation of the propagation of electromagnetic waves in ionospheric irregularities被引量：4
《Earth and Planetary Physics》2020年第6期565-570,共6页Chun Hua Jiang LeHui Wei GuoBin Yang Chen Zhou ZhengYu Zhao 
We acknowledge the Institute of Earthquake Forecasting for providing the ionosonde data.This work was supported by the National Natural Science Foundation of China(no.41604133).
The characteristics of high-frequency(HF)electromagnetic(EM)wave propagation can be affected when EM waves propagate in the ionosphere.When ionospheric irregularities appear in the ionosphere,they can have a serious i...
关键词：electromagnetic waves ray tracing numerical simulation ionospheric irregularities IONOGRAM 
Characteristics of Anomalous Radio Propagation before and after the 2011 Tohoku-Oki Earthquake as Seen by Oblique Ionograms被引量：1
《Open Journal of Earthquake Research》2020年第2期100-112,共13页Kiyoshi Igarashi Toshio Tsuchiya Ken Umeno 
The characteristics of anomalous radio propagation in the frequency 1 - 30 MHz before and after the 2011 Tohoku-Oki earthquake are firstly revealed by using oblique ionograms for the pass from Wakkanai to Kokubunji wh...
关键词：IONOSPHERIC Disturbances OBLIQUE IONOGRAM ANOMALOUS Radio Propagation Atmospheric GRAVITY Waves 
Real-Time Automatic Scaling Method of Oblique Ionogram Parameters Based on Morphological Operator and Inversion Technique被引量：1
《Wuhan University Journal of Natural Sciences》2015年第4期323-328,共6页HU Yaogai SONG Huan ZOU Xianjian 
Supported by the National Natural Science Foundation of China(59975035,41006058);the Fundamental Research Funds for the Central Universities(2014212020205)
Automatic scaling ionogram can get the parameters of ionogram which are vital to ionosphere detecting. In this paper, a new method is proposed to scale F2 layer trace automatically from oblique ionogram based on morph...
关键词：parameters inversion oblique ionogram automatic scaling hybrid genetic algorithm（HGA） 
Application of the oblique ionogram as vertical ionogram被引量：5
《Science China(Technological Sciences)》2012年第5期1240-1244,共5页CHEN Gang ZHAO ZhengYu ZHANG YuanNong YANG GuoBin ZHOU Chen HUANG Shuo LI Ting LI Ning SUN HengQing 
supported by the National Natural Science Foundation of China (Grant Nos. 40804042 and 41074115);the Post Doctor Foundation of China (Grant No. 200902445);the Fundamental Research Funds for the Central Universities (Grant No. 4081004)
The vertical ionogram can provide the important ionospheric parameters, such as critical frequency, virtual height and electron density, for ionospheric research. The oblique ionosonde has the ability to detect the io...
关键词：ionogram inversion critical frequency virtual height electron density profile 
Martian ionogram scaling by the Object Tracking Method被引量：3
《Science China(Physics,Mechanics & Astronomy)》2012年第3期540-545,共6页WANG MingYuan PING JinSong 
supported by the National Natural Science Foundation of China(Grant Nos. 10973031,2008AA12A210 and 2010AA122206)
The Mars Advanced Radar for Subsurface and Ionosphere Sounding(MARSIS) onboard the Mars Express(MEX) spacecraft started to collect data of the Martian topside ionosphere from May,2005.By now a large amount of ionogram...
关键词：MARSIS IONOGRAM Object Tracking Method (OTM) 
The high-latitude ionospheric phenomena observed by DPS-4 at Zhongshan Station, Antarctica被引量：3
《Chinese Journal of Polar Science》1999年第2期141-148,共8页刘顺林 刘瑞源 贺龙松 
Ionograms, which were obtained from February 1995 to January 1999 by a Digisonde Portable Sounder-4 (DPS-4) at Zhongshan Station in Antarctica, have been scaled. The ionograms interpretation has shown various ionosphc...
关键词：IONOGRAM high-latitude ionosphere high-latitude phenomena Zhongshan Station 
Obtaining the Real Height Profile of Ionospheric Electron Density with Back Propagation Network
《Wuhan University Journal of Natural Sciences》1999年第2期64-66,共3页Wu, Qing-lin  Li, Xian-wen 
A new method to obtain the real height profile of ionospheric electron density is described, which is called 'approximation with network'. Also it has been demonstrated how to solve the group path integral equation wi...
关键词：approximation with network BP network IONOGRAM group path 
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