2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)最新文献

Snow on lake ice: Overview of a multiyear airborne radiometer data collection program and related modeling efforts 湖面上的雪:多年机载辐射计数据收集计划和相关建模工作概述

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-08-02 DOI: 10.1109/MICRORAD.2016.7530513

M. Hallikainen, M. Vaaja, Jaakko Seppanen, J. Praks, J. Lemmetyinen

引用次数: 1

Fully polarimetrie radiometer calibration: Determining retardation plate's characteristics 全偏振辐射计校准:测定缓速板的特性

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-08-02 DOI: 10.1109/MICRORAD.2016.7530529

J. Lahtinen, M. Hallikainen

{"title":"Fully polarimetrie radiometer calibration: Determining retardation plate's characteristics","authors":"J. Lahtinen, M. Hallikainen","doi":"10.1109/MICRORAD.2016.7530529","DOIUrl":"https://doi.org/10.1109/MICRORAD.2016.7530529","url":null,"abstract":"This paper presents a novel method to determine the phase shift of a phase retardation plate. Primarily, the method has been developed for fully polarimetric calibration standards, which consists of a linearly polarized (tri-polarimetric) calibration standard and a retardation plate. However, the method can also be applied for the phase retardation plates for other purposes. The presented method applies a fully polarimetric radiometer as the measuring instrument and it is based on the application of both linearly polarized (tri-polarimetric) and fully polarimetric calibration data, generated by the calibration standard. In the same process, the skew angle between the coordinates of the retardation plate and antenna polarization basis is determined. In addition, a method to determine the insertion loss of the phase retardation plate is described. It is based on the difference of the brightness temperatures when measuring the cold calibration scene with and without the retardation plate in the RF path. The feasibility of the presented methods has been demonstrated using the Fully Polarimetric Radiometer (FPoR), the Fully Polarimetric Calibration Standard (FPCS), and its retardation plate of Aalto University. Good match between measurement results and theoretical predictions as well as good repeatability have been achieved in determining the parameters of the retardation plate in 11 distinct measurements over a time period of almost three years.","PeriodicalId":330696,"journal":{"name":"2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126899373","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

Potential of microwave imager combined activepassive for the retrieval of sea surface salinity: A new mission concept 微波成像仪主被动联合反演海面盐度的潜力:一个新的任务概念

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530532

X. Yin, Hao Liu, Risheng Yun, Lin Wu, Xing-ou Xu, Di Zhu

引用次数: 0

Precipitation retrievals from passive microwave cross-track sounding instruments 被动微波交叉航迹测深仪降水反演

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530515

C. Kidd, S. Ringerud, G. Skofronick-Jackson, G. Huffman

引用次数: 1

Temporal resolution enhancement of image sequences capturing evolving weather phenomena 时间分辨率增强图像序列捕捉不断变化的天气现象

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530525

I. Yanovsky, B. Lambrigtsen

引用次数: 1

SMOS payload status after six years in orbit operational and thermal performance, calibration strategy & RFI management SMOS在轨道运行6年后的有效载荷状态、热性能、校准策略和RFI管理

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530495

M. Kornberg, R. Oliva, J. Fauste, E. Daganzo-Eusebio, M. Martín-Neira, E. Checa

{"title":"SMOS payload status after six years in orbit operational and thermal performance, calibration strategy & RFI management","authors":"M. Kornberg, R. Oliva, J. Fauste, E. Daganzo-Eusebio, M. Martín-Neira, E. Checa","doi":"10.1109/MICRORAD.2016.7530495","DOIUrl":"https://doi.org/10.1109/MICRORAD.2016.7530495","url":null,"abstract":"The SMOS Payload is a single instrument, the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS), which is a passive microwave 2D-interferometric radiometer working in the L-Band. The MIRAS antenna aperture is synthesized from 69 antenna elements arranged in a Y-shaped configuration. In this paper, the current status of the SMOS payload after more than 6 years in orbit is overviewed from four different perspectives: (1) Operational Performance, indicating how some anomalies have been dealt with in orbit and the availability figures accounting for more than 99%, (2) Thermal Performance, where we review the thermal requirements of the instrument and we analyze the temperature evolution of the system in some examples, (3) Calibration Strategy, being quite demanding for MIRAS, have required only few changes since launch, and (4) RFI Management, where we provide an overview of the RFI situation since launch and the progress achieved after 6 years of due actions by ESA to switchoff or mitigate the impact of interference sources.","PeriodicalId":330696,"journal":{"name":"2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124468306","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

Monitoring boreal and arctic freeze/thaw with the first year of SMAP brightness temperatures 用SMAP亮温第一年监测北方和北极的冻融

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530509

A. Roy, A. Royer, C. Derksen, A. Langlois, O. Sonnentag

引用次数: 2

Microwave imager instrument for MetOp second generation: Design and verification MetOp第二代微波成像仪:设计与验证

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530499

T. Lupi, F. Tominetti, M. Grilli, W. Di Nicolantonio, C. Tabart, C. Bredin, F. Bayle, E. Vetrano, E. De Viti, L. Scialino, A. Catalani, S. D'addio

引用次数: 4

Development of Compact High Altitude Imager and Sounding Radiometer (CHAISR) microwave radiometers for meteorological observation from HALE UAV 用于HALE无人机气象观测的紧凑型高空成像仪和探测辐射计微波辐射计的研制

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530503

R. K. Choi, J. Ha, Y. Cho, E. Lim, M. Klein, Seunghyun Min, Sanghyun Beck, J. Sohn, Hyunsung Jang

{"title":"Development of Compact High Altitude Imager and Sounding Radiometer (CHAISR) microwave radiometers for meteorological observation from HALE UAV","authors":"R. K. Choi, J. Ha, Y. Cho, E. Lim, M. Klein, Seunghyun Min, Sanghyun Beck, J. Sohn, Hyunsung Jang","doi":"10.1109/MICRORAD.2016.7530503","DOIUrl":"https://doi.org/10.1109/MICRORAD.2016.7530503","url":null,"abstract":"A set of compact microwave radiometers are under development for tropospheric sounding and imaging, as a part of the Compact High Altitude Imager and Sounding Radiometer (CHAISR) that operates in lower stratosphere. It aims to observe vertical temperature profiles and column-averaged water vapour for entire troposphere where most weather system takes place. Given total weight (4 kg) and power (50 W) constraints for the CHAISR are not the only challenges. The CHAISR requires nominal operation in thermal range between -75 and +43 °C up to 50 hPa. Along with optical cameras and in situ sensors in the CHASIR, microwave radiometers are to fit in 130 mm diameter and 290 mm length with total weight less than 1.5 kg for conical scan unit. Maximum power consumption of less than 15 W does not allow conventional internal blackbody calibration facility onboard, and alternative methods has been developed. Frequency ranges of three radiometer bands are ~20, ~40, and ~55 GHz, with 16 total channels. This MMIC based compact radiometers use quasi-correlation design for continuous observation for both reference and scene. Numerical simulation of the radiometer design shows less than 1 °K of RMSE is expected. Manufacture of the CHAISR is expect to be first quarter of 2017 and test flight is planned in summer of the same year.","PeriodicalId":330696,"journal":{"name":"2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126945749","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

Mitigation of cross-polar antenna pattern errors in SMOS: Simplified approach SMOS中交叉极天线方向图误差的减小:简化方法

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI: 10.1109/MICRORAD.2016.7530520

I. Durán, F. Torres, I. Corbella, N. Duffo, Lin Wu, M. Martín-Neira

引用次数: 1