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2022 URSI Regional Conference on Radio Science (USRI-RCRS)最新文献

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URSI-RCRS 2022 Author Index URSI-RCRS 2022作者索引
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/ursi-rcrs56822.2022.10118564
{"title":"URSI-RCRS 2022 Author Index","authors":"","doi":"10.23919/ursi-rcrs56822.2022.10118564","DOIUrl":"https://doi.org/10.23919/ursi-rcrs56822.2022.10118564","url":null,"abstract":"","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117350363","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
Identification of Elevated Aerosol Layers and their properties by using ground-based aerosol measurements over the foothills of the central Himalayas 利用地面气溶胶测量在喜马拉雅山脉中部丘陵地区识别高架气溶胶层及其特性
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118448
A. Chandel, C. Sarangi, R. Hooda, A. Hyvärinen
{"title":"Identification of Elevated Aerosol Layers and their properties by using ground-based aerosol measurements over the foothills of the central Himalayas","authors":"A. Chandel, C. Sarangi, R. Hooda, A. Hyvärinen","doi":"10.23919/URSI-RCRS56822.2022.10118448","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118448","url":null,"abstract":"Previous studies have identified and examined the elevated aerosol layers (EAL) using LiDAR measurements from CALIPSO or MPLNET. Here we identify the EALs and their properties using ground-based aerosol measurements in Mukteshwar, a remote site in the Himalayan Mountains in northern India, from 2006–2013 (March-August only). EAL events are screened from the 8-year measurements by considering the ratio of PMIO to PM2.5 equal to or greater than two. BC increases by two to threefold and shows a good association with the PM concentration during the EAL events. The presence of strongly absorbing and scattering aerosol in EAL can be seen by their varying range of 10–50 Mm-1 and 50–350 Mm-1, respectively. CALIPSO, MPLNET, Dust Aerosol Optical Thickness, and NASA'S Worldview Earthdata are used to verify the EAL events identified from the ground-based aerosol measurements. The back-trajectory analysis clearly shows an influx of airmass from Arabia's arid regions and the west Arabian sea.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125140165","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
Long Term Melting Layer Features related to Atmospheric Instabilities at a tropical location 与热带地区大气不稳定有关的长期融化层特征
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118570
Pallabi Saha, A. Maitra
{"title":"Long Term Melting Layer Features related to Atmospheric Instabilities at a tropical location","authors":"Pallabi Saha, A. Maitra","doi":"10.23919/URSI-RCRS56822.2022.10118570","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118570","url":null,"abstract":"The present study is concerned on the melting layer height and width variations and its relation to atmospheric feature such as boundary layer height and atmospheric instability expressed in terms of Convective Available Potential Energy (CAPE) over a tropical location, Kolkata, India.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125264346","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
Application of S-band resonant cavity filters for 4G rejection at TTC Ground Stations s波段谐振腔滤波器在TTC地面站4G抑制中的应用
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118569
Debdas Paik, Vinay Kumar Singh, S. Maheswari, Umang M Parikh, M. R. Raghavendra, B. N. Ramakrishna
{"title":"Application of S-band resonant cavity filters for 4G rejection at TTC Ground Stations","authors":"Debdas Paik, Vinay Kumar Singh, S. Maheswari, Umang M Parikh, M. R. Raghavendra, B. N. Ramakrishna","doi":"10.23919/URSI-RCRS56822.2022.10118569","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118569","url":null,"abstract":"S-band ground station is providing Telemetry Tele-Command TTC support to the remote sensing satellites $24times 7$ and in the recent years due to the 4G mobile signals from the base-station towers the satellite signal encounters a strong interference. Due to this interference ground station receive systems don't work properly resultant as a poor carrier to noise ration C/NO, poor energy per bit to the noise density EB/No at the receiver and observed receiver unlock and data break during different satellite passes. This paper presents the application of low loss combline coaxial cavity bandpass filter for 4G signal rejection at TTC ground station. The filter is a 5th order Chebyshev tunable using tuning and coupling screws. The center frequency F0, lower cut-off frequency FC1 and upper cut-off frequency FC2 of the filter is set to 2225MHz, 2169MHz and 2280 MHz respectively. The filter is having an insertion loss of 1.0dB, $pm 0.5text{dB}$ of passband ripple and 40dB rejection at $mathrm{F}0pm 55 text{MHz}$","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491408","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
Identification of aerosol types over the central Indo-Gangetic Plain using multi-satellite observations 利用多卫星观测识别印度恒河平原中部气溶胶类型
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118438
Prayagraj Singh, Bakhtawar H. Abdullah, Aditya Vaishya, P. Prasad, S. Rastogi
{"title":"Identification of aerosol types over the central Indo-Gangetic Plain using multi-satellite observations","authors":"Prayagraj Singh, Bakhtawar H. Abdullah, Aditya Vaishya, P. Prasad, S. Rastogi","doi":"10.23919/URSI-RCRS56822.2022.10118438","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118438","url":null,"abstract":"Identification and quantification of aerosol types in the central Indo-Gangetic Plain (IGP) region is done using long-term (2005 - 2019) and simultaneous datasets, from satellite and reanalysis, of aerosol optical depth (AOD), absorbing aerosol index (AAI) and Ångström exponent (α). In order to identify aerosol types in the central IGP, we used two classification methods by assigning the predefined thresholds of (i) AOD and $alpha$ and (ii) AOD, a and AAI. Results derived from Method 1 suggest anthropogenic aerosols (AA) are dominant during the study period followed by mixed type (MT) and biomass burning (BB) aerosols over Gorakhpur. From Method 2, it is apparent that absorbing aerosols dominate during pre-monsoon (PM), post-monsoon (PoM) and winter (W) seasons, and non-absorbing aerosols during monsoon (M). BB aerosols derived from method 1 and carbonaceous aerosols from method 2 showed the highest contribution during PoM and W season. This is due to increased burning of agricultural waste and forest fires in the IGP region during this period. Dust aerosols derived from both methods showed maximum contribution during PM season, with marginal contributions during M and W seasons, respectively, and negligible during PoM season.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892844","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
A Study on the Impact of Kalman Filtering on CGGTTS formatted GPS data for Time Transfer 卡尔曼滤波对CGGTTS格式GPS数据时传影响的研究
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118486
P. Thorat, Prabal Banerjee
{"title":"A Study on the Impact of Kalman Filtering on CGGTTS formatted GPS data for Time Transfer","authors":"P. Thorat, Prabal Banerjee","doi":"10.23919/URSI-RCRS56822.2022.10118486","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118486","url":null,"abstract":"This paper applies a Kalman Filter on GPS data to study its efficacy in time transfer. This exercise has been carried out with the help a particular set of data as a case study to achieve the objective. This has been elaborated in this paper.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123197598","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
Square Kilometre Array Pulsar Search Pipeline 平方公里阵列脉冲星搜索管道
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118499
T. Prabu
{"title":"Square Kilometre Array Pulsar Search Pipeline","authors":"T. Prabu","doi":"10.23919/URSI-RCRS56822.2022.10118499","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118499","url":null,"abstract":"The Square Kilometre Array (SKA) project aims to realize a state-of-the-art and most sensitive radio telescope to address various important science goals. The project is moving towards final implementation. Pulsar search is one of the major programs planned with SKA. It is a complex task; about 60 petabytes of data are to be handled daily, needing nearly 10 Peta-ops processing capabilities. Such complex processing requirements necessitate exploring high-performance computing options and using novel accelerators based on modern FPGAs. There are ongoing contributions from the team members worldwide to develop the SKA transient search pipeline and its integration and validation. This paper will outline the SKA transient search pipeline details, highlighting the salient features designed for accelerating the search algorithms.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123646354","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
Lightning to rainfall ratio: a global perspective 闪电与降雨之比:全球视角
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118447
R. Chakraborty, P. S. Menghal, A. Chakraborty
{"title":"Lightning to rainfall ratio: a global perspective","authors":"R. Chakraborty, P. S. Menghal, A. Chakraborty","doi":"10.23919/URSI-RCRS56822.2022.10118447","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118447","url":null,"abstract":"The present study has attempted to explain the spatiotemporal distributions of lightning to rainfall ratios. A detailed analysis revealed that the lightning to rainfall ratio is prominent near the equator, followed by the horse latitudes experiencing cooler and arid conditions. However, longitudinally, these ratios peak only around large landmasses in contrast to rainfall. Further, the equatorial African regions experience an arid climate with unprecedented lightning due to orographic convection leading to the maximum lightning to rainfall ratio values. The thermodynamic properties depict a single but gradual peak slightly north of the equator. At the same time, the longitudinal variation reveals consistently higher values of instability and clouds over land due to its lower heat capacity. Further, these observations are also supported by the seasonal variations except for the presence of prominent seasonality across the subtropical land regions.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116204189","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
Investigating the Performance Benefits of Vectorized NavIC Receiver over Federated NavIC Receiver in Semi-Urban Environments 半城市环境下矢量化NavIC接收机与联邦NavIC接收机性能优势研究
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118512
Abhijit Dey, Nikhil Sharma
{"title":"Investigating the Performance Benefits of Vectorized NavIC Receiver over Federated NavIC Receiver in Semi-Urban Environments","authors":"Abhijit Dey, Nikhil Sharma","doi":"10.23919/URSI-RCRS56822.2022.10118512","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118512","url":null,"abstract":"The Navigation with Indian Constellation (NavIC) system has created new opportunities for precise positioning across the Indian subcontinent. NavIC receivers are widely used for different applications, including in the autonomous vehicle industry. However, the performance and robustness of these receivers are contingent on satellite geometry, receiver architecture, and navigation environment. In semi-urban canyons with a high probability of signal blockage and/or interference from one or more satellites, scalar tracking (ST)-based NavIC receivers' positioning accuracy degrades. Vector tracking (VT)-based NavIC receivers, on the other hand, display some tolerance to transient outages and interference. Therefore, it is necessary to investigate VT-based NavIC receivers for various applications, particularly safety-critical applications. This study compares a single-frequency (L5/S) vectorized and federated NavIC software receiver in semi-urban environments.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126460704","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: 1
Study and Realization of Software Defined Radio Detection using Emona Sigex and Lab View platform for Cognitive radio Applications 基于Emona Sigex和Lab View平台的认知无线电软件定义无线电检测研究与实现
2022 URSI Regional Conference on Radio Science (USRI-RCRS) Pub Date : 2022-12-01 DOI: 10.23919/URSI-RCRS56822.2022.10118530
Rogina Sultana, J. K. Ray, Sain Shaikh, Quazi Md. Alfred
{"title":"Study and Realization of Software Defined Radio Detection using Emona Sigex and Lab View platform for Cognitive radio Applications","authors":"Rogina Sultana, J. K. Ray, Sain Shaikh, Quazi Md. Alfred","doi":"10.23919/URSI-RCRS56822.2022.10118530","DOIUrl":"https://doi.org/10.23919/URSI-RCRS56822.2022.10118530","url":null,"abstract":"Software-Defined Radio (SDR) is a rapidly evolving technology that is receiving enormous recognition and generating widespread interest in the telecommunication industry. Over the last few years, analog radio systems are being replaced by digital radio systems for various radio applications in military, civilian and commercial spaces. In addition to this, programmable hardware modules are increasingly being used in digital radio systems at different functional levels. SDR technology aims to take advantage of these programmable hardware modules to build an open-architecture based radio system software. This paper aims to emulate SDR receiver using NI Elvis and Emona Sigex signal Processing board operating under Lab View platform. In this work, multiple carrier signal have been received and message signal is demodulated by DSP based processing e.g tuning and A/D, D/A, tuning, filtering etc.","PeriodicalId":229743,"journal":{"name":"2022 URSI Regional Conference on Radio Science (USRI-RCRS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128172916","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
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