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Variation of pulsar signal received with the PL612 as an indicator of the ionosphere dynamics PL612接收到的脉冲星信号的变化作为电离层动力学的一个指标
2020 Baltic URSI Symposium (URSI) Pub Date : 2020-10-05 DOI: 10.23919/URSI48707.2020.9254043
L. Blaszkiewicz, A. Krankowski, B. Dabrowski, M. Hajduk, P. Flisek, K. Kotulak, I. Zakharenkova, I. Cherniak
{"title":"Variation of pulsar signal received with the PL612 as an indicator of the ionosphere dynamics","authors":"L. Blaszkiewicz, A. Krankowski, B. Dabrowski, M. Hajduk, P. Flisek, K. Kotulak, I. Zakharenkova, I. Cherniak","doi":"10.23919/URSI48707.2020.9254043","DOIUrl":"https://doi.org/10.23919/URSI48707.2020.9254043","url":null,"abstract":"PL612, one of the three Polish LOFAR stations is fully operational in the International LOFAR Telescope (ILT) since beginning of 2016. In second half of 2016 we have also started a pulsar observational projects in the local mode using the Bałdy LOFAR station. In this paper we shortly describe a new project which focuses on the simultaneous observation of pulsars and the TEC parameter towards them in the sky.","PeriodicalId":185201,"journal":{"name":"2020 Baltic URSI Symposium (URSI)","volume":"44 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115816159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil Aquametry and Electromagnetic Metrology 土壤水学与电磁计量
2020 Baltic URSI Symposium (URSI) Pub Date : 2020-10-05 DOI: 10.23919/URSI48707.2020.9254071
W. Skierucha, M. Kafarski, A. Wilczek, A. Szypłowska, A. Lewandowski, J. Szerement, A. Woszczyk, J. Majcher
{"title":"Soil Aquametry and Electromagnetic Metrology","authors":"W. Skierucha, M. Kafarski, A. Wilczek, A. Szypłowska, A. Lewandowski, J. Szerement, A. Woszczyk, J. Majcher","doi":"10.23919/URSI48707.2020.9254071","DOIUrl":"https://doi.org/10.23919/URSI48707.2020.9254071","url":null,"abstract":"Water as the precious ecohydrological natural resource necessary to sustain life on the Earth should be used in a sustainable way. This is especially important to that part of water that directly affects living organisms, that is soil water. Its volume is not more than 0.05% of total water on the Earth but its importance in the habitat of all living creatures is priceless especially for food production. Water balance between agricultural production and natural ecosystems is not stable because irrigation water is lost to natural ecosystems and can lead to their decline. Therefore, soil water amount and quality should be monitored in automatic and non-invasive way. The paper presents electromagnetic methods and sensors for monitoring soil water content. Special attention is put of the respective microwave tools, their advantages and prospects for the future of soil moisture metrology.","PeriodicalId":185201,"journal":{"name":"2020 Baltic URSI Symposium (URSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123508145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Performance Analysis and Optimization of IGLUNA 2019 Lunar-Analogue Longwave Transmitting System IGLUNA 2019模拟月球长波发射系统性能分析与优化
2020 Baltic URSI Symposium (URSI) Pub Date : 2020-10-05 DOI: 10.23919/URSI48707.2020.9254014
T. Miś
{"title":"The Performance Analysis and Optimization of IGLUNA 2019 Lunar-Analogue Longwave Transmitting System","authors":"T. Miś","doi":"10.23919/URSI48707.2020.9254014","DOIUrl":"https://doi.org/10.23919/URSI48707.2020.9254014","url":null,"abstract":"The paper presents the attempt of finding optimal solutions regarding the emission type, basic emission parameters and channel capacity for the trans-ice longwave communication channel, as deployed in June 2019 during the first edition of the IGLUNA programme - a simulated lunar habitat in the Klein Matterhorn glacier in Switzerland. The experimental system is compared to lowland high-power longwave systems, the optimal emission type for different conditions (modulation index, demanded presence of carrier) is presented and the maximum possible channel capacity in relation to the achieved signal readability is calculated.","PeriodicalId":185201,"journal":{"name":"2020 Baltic URSI Symposium (URSI)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128083303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Determining a Matched Load Response of Six-Port Reflectometer Using Partially Known Calibration Loads 使用部分已知的校准负载确定六端口反射计的匹配负载响应
2020 Baltic URSI Symposium (URSI) Pub Date : 2020-10-05 DOI: 10.23919/URSI48707.2020.9253760
K. Staszek
{"title":"Determining a Matched Load Response of Six-Port Reflectometer Using Partially Known Calibration Loads","authors":"K. Staszek","doi":"10.23919/URSI48707.2020.9253760","DOIUrl":"https://doi.org/10.23919/URSI48707.2020.9253760","url":null,"abstract":"This paper presents a method for determining a six-port reflectometer's response to a matched load with the use of partially known calibration loads. It utilizes nine calibration loads which can be of unknown magnitude and phase, however, three of them must exhibit magnitudes possibly close to each other with a reasonable phase separation. The algorithm was tested with the use of an exemplary broadband six-port reflectometer operating over the frequency range from 2.5 GHz to 3.5 GHz. The power values obtained using the proposed method are very close to those directly measured by the six-port reflectometer with a broadband matched load from precision calibration kit connected as DUT.","PeriodicalId":185201,"journal":{"name":"2020 Baltic URSI Symposium (URSI)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127562182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evidence Theory Based Data Fusion for Centralized Cooperative Spectrum Sensing in Mobile Ad-hoc Networks 基于证据理论的移动自组网集中协同频谱感知数据融合
2020 Baltic URSI Symposium (URSI) Pub Date : 2020-10-05 DOI: 10.23919/URSI48707.2020.9254038
P. Skokowski, J. Łopatka, Krzysztof Malon
{"title":"Evidence Theory Based Data Fusion for Centralized Cooperative Spectrum Sensing in Mobile Ad-hoc Networks","authors":"P. Skokowski, J. Łopatka, Krzysztof Malon","doi":"10.23919/URSI48707.2020.9254038","DOIUrl":"https://doi.org/10.23919/URSI48707.2020.9254038","url":null,"abstract":"This paper presents an efficient method of cooperative spectrum sensing for mobile radio networks with the hierarchical management structure. The network is divided into clusters controlled by cluster heads. All cluster members perform spectrum sensing using energy detectors. Sensing results are then transmitted to fusion centers in cluster heads, where they are combined using evidence theory based on Dempster-Shafer theory. The achieved simulation results show that the proposed method outperforms commonly used rules and gives a high probability of proper signal detection and low probability of false alarms.","PeriodicalId":185201,"journal":{"name":"2020 Baltic URSI Symposium (URSI)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129284025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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