Sensors, Systems, and Next-Generation Satellites XXVII最新文献

NOAA-21 VIIRS thermal emissive bands on-orbit calibration and performance in early mission NOAA-21 VIIRS热发射波段在轨标定与早期任务性能

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2680344

Kwofu V. Chiang, A. Angal, Tiejun Chang, Sherry Li, Xiaoxiong Xiong

{"title":"NOAA-21 VIIRS thermal emissive bands on-orbit calibration and performance in early mission","authors":"Kwofu V. Chiang, A. Angal, Tiejun Chang, Sherry Li, Xiaoxiong Xiong","doi":"10.1117/12.2680344","DOIUrl":"https://doi.org/10.1117/12.2680344","url":null,"abstract":"The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument is currently operating onboard the NOAA-21 (or JPSS-2) satellite, which was launched successfully from the Vandenberg Space Force Base in California on November 10, 2022. This is the third VIIRS instrument flying on a series of Joint Polar Satellite System (JPSS) satellites, including S-NPP and NOAA-20 (or JPSS-1), along with other Earth observing instruments on board. The measurements collected by VIIRS are used for weather forecasting and environmental science research. Among 22 spectral bands of VIIRS, there are seven mid- and long-wave infrared Thermal Emissive Bands (TEB) ranging from 3.7 to 12.2 microns at two different spatial resolutions; imagery resolution bands (I-bands) I4 and I5 are 375 m per pixel at nadir, and moderate resolution bands (M-bands) M12 - M16 are 750 m. The VIIRS TEB detectors are calibrated by an On-Board Calibrator (OBC) blackbody (BB) at controlled temperatures with a deep Space View (SV) for background signal measurement. Prior to launch, the TEB went through rigorous pre-launch calibration and characterization tests in ambient and thermal vacuum environments. During the initial post-launch testing (PLT) period, a comprehensive set of tests and spacecraft maneuvers were performed to ensure the health of the satellite and all sensors. The PLT results help the understanding of instrument response and performance, and to bridge the calibrations between pre-launch and post-launch for traceability. This paper provides an overview of NOAA-21 VIIRS TEB PLTs with their results and follow-on on-orbit performance. Comparisons with NOAA-20 and S-NPP VIIRS TEB are also made in various categories including noise characterization, blackbody stability, and detectors response.","PeriodicalId":330744,"journal":{"name":"Sensors, Systems, and Next-Generation Satellites XXVII","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121605364","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

Introducing the EarthDaily Constellation, a scientific-grade earth observation mission with daily revisit time 介绍地球每日星座，一个科学级的地球观测任务，每天重访一次

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2678313

Harold Clenet, Arnaud Quesney, Nicolas Karasiak, A. Allies, Tatiana Dias Tardelli Uehara, Alexis Durand, Caroline Gevaert, Bevan Glynn, Clément Peyrard, Luisa Walsh, Guillaume Huby, Cécile Tartarin

{"title":"Introducing the EarthDaily Constellation, a scientific-grade earth observation mission with daily revisit time","authors":"Harold Clenet, Arnaud Quesney, Nicolas Karasiak, A. Allies, Tatiana Dias Tardelli Uehara, Alexis Durand, Caroline Gevaert, Bevan Glynn, Clément Peyrard, Luisa Walsh, Guillaume Huby, Cécile Tartarin","doi":"10.1117/12.2678313","DOIUrl":"https://doi.org/10.1117/12.2678313","url":null,"abstract":"The aim of this paper is to present the specifications of the EarthDaily Constellation, a scientific-grade EO mission, and the first results produced using a simulated dataset covering the September 2018 to August 2020 period over the Toulouse area in South of France. Two launches are scheduled in 2024 to put into orbit the ten satellites of the constellation. With an expected lifespan of over ten years, the constellation will collect daily imagery of the planet using a unique combination of 22 spectral bands in the VNIR, SWIR and TIR, many of which will be up to 5m GSD. The EarthDaily Constellation is a systematic acquisition mission, i.e., always-on over land, always nadir looking, with targeted geometric and radiometric quality aligned with Sentinel-2. In our paper, we will provide first details on the space segment main characteristics and bands specifications. We will also present the creation process of a simulated dataset based on actual Venµs, Landsat, MODIS and Sentinel-2 observations, that provides a realistic simulation of a higher revisit time. Eventually we will address an example of perspective on agricultural applications, especially focusing on the first scientific results we obtained on evaporative fraction estimation from thermal infrared, and irrigation events detection. Those first results demonstrate the added value that will be brought by ED constellation.","PeriodicalId":330744,"journal":{"name":"Sensors, Systems, and Next-Generation Satellites XXVII","volume":"43 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132574995","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

Influence of motion compensation on the imaging quality of encoded aperture imaging spectrometer 运动补偿对编码孔径成像光谱仪成像质量的影响

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2684375

Zhen Li, Shaocong Liu, Xianfei Qiu, Tinghao Liu, Guorui Jia

{"title":"Influence of motion compensation on the imaging quality of encoded aperture imaging spectrometer","authors":"Zhen Li, Shaocong Liu, Xianfei Qiu, Tinghao Liu, Guorui Jia","doi":"10.1117/12.2684375","DOIUrl":"https://doi.org/10.1117/12.2684375","url":null,"abstract":"Coded aperture imaging spectrometer is a new type of hyperspectral imaging instrument. The space-borne hyperspectral imager makes images by pushing and sweeping. In the ideal imaging model, it is assumed that one pixel is separated between two adjacent frames so that the target information can be accurately reconstructed. When coding aperture imaging is performed under motion compensation, the moving distance of the object image on the focal plane at each imaging time is different, and there is an amount of dislocation, resulting in decoding error of the decoded and restored data along the direction of the orbit, and the phenomenon of ground object \"double shadow\" and spectral decoding distortion appear in the simulation image. The amount of misalignment under different compensation modes is different, resulting in different decoding errors. The mathematical model of target data encoding and decoding in push-sweep coded aperture imaging and the mathematical model of field of view optical axis angular velocity in motion compensation mode were constructed. The simulation method of coded aperture imaging hyperspectral data under motion compensation was established, and the simulation data quality was analyzed. Through data quality analysis, it can be seen that under the uniform angular velocity mode, the uniform ground velocity mode and the uniform integral time mode, the cumulative amount of dislocation decreases successively, which is 5.7 m, 0.7 m and 0 m, respectively. The \"double shadow\" phenomenon of the simulated image becomes less and less obvious, and the image quality becomes clearer and clearer. Meanwhile, the restoration and reconstruction accuracy of the coding aperture imaging improves successively.","PeriodicalId":330744,"journal":{"name":"Sensors, Systems, and Next-Generation Satellites XXVII","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132759520","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

NOAA-21 VIIRS day-night band on-orbit calibration and performance in early mission 早期任务中NOAA-21 VIIRS昼夜波段在轨校准与性能

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2678663

Hongda Chen, Junqiang Sun, D. Link, Chengbo Sun, Xiaoxiong Xiong, Kwofu V. Chiang

{"title":"NOAA-21 VIIRS day-night band on-orbit calibration and performance in early mission","authors":"Hongda Chen, Junqiang Sun, D. Link, Chengbo Sun, Xiaoxiong Xiong, Kwofu V. Chiang","doi":"10.1117/12.2678663","DOIUrl":"https://doi.org/10.1117/12.2678663","url":null,"abstract":"The NOAA-21 VIIRS instrument has successfully operated since its launch on November 10, 2022. A panchromatic channel onboard VIIRS, referred to as the Day-Night Band (DNB), was designed with multiple gain stages resulting in a large dynamic range and high sensitivity such that its detectors can make observations during both spacecraft day and spacecraft night. An onboard Solar Diffuser (SD) panel provides a well-understood calibration source for the Low Gain Stage (LGS). While there is no direct, onboard calibration source for the Mid Gain Stage (MGS) or High Gain Stages (HGS), measurements of the SD during times of indirect solar illumination can provide relative gain ratios between the LGS/MGS and MGS/HGS. Results from an early mission pitch maneuver and regular new moon observations are used in combination with onboard calibrator trends to determine the DNB dark offset (DN0) levels. In this paper, we present details for the NOAA-21 VIIRS DNB on-orbit calibration and highlight its early mission performance. Calibration coefficients look up tables (LUTs) are calculated by the NASA VIIRS characterization support team (VCST) for the latest NASA Level 1B (L1B) Collection 1 products. DNB straylight contamination has been observed to differing degrees for earlier VIIRS instruments currently on both the SNPP and NOAA-20 spacecraft. We discuss the impact of straylight on the NOAA-21 VIIRS DNB in comparison to the previous instruments and the performance of our current straylight correction for L1B radiance products.","PeriodicalId":330744,"journal":{"name":"Sensors, Systems, and Next-Generation Satellites XXVII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117101971","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

Active optics for a formation flying synthetic aperture telescope 编队飞行合成孔径望远镜的主动光学

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2680564

N. Miyamura, Ryo Suzumoto, S. Ikari, Shinichi Nakasuka

引用次数: 0

A compact and rugged hyperspectral camera for remote sensing based on FT spectrometry 一种基于傅立叶变换光谱法的高光谱遥感相机

Sensors, Systems, and Next-Generation Satellites XXVII Pub Date : 2023-10-20 DOI: 10.1117/12.2680018

C. Manzoni, Matteo Corti, B. Ardini, F. Preda, A. Perri, D. Polli, G. Cerullo, Ondřej Ballada, Lukáš Chroust, Č. Barta

{"title":"A compact and rugged hyperspectral camera for remote sensing based on FT spectrometry","authors":"C. Manzoni, Matteo Corti, B. Ardini, F. Preda, A. Perri, D. Polli, G. Cerullo, Ondřej Ballada, Lukáš Chroust, Č. Barta","doi":"10.1117/12.2680018","DOIUrl":"https://doi.org/10.1117/12.2680018","url":null,"abstract":"Spectral imaging is a method to acquire the spectrum of the light for each point in the image of a scene. By combining classical imaging with Fourier-transform spectrometry it is possible to acquire hyperspectral images with higher spectral accuracy and lower times compared to standard dispersive optical systems. The technique is based on interferometry and is hence technically challenging as it requires to generate field replicas with delay controlled within a small fraction (1/100 or better) of the optical cycle. Standard FT spectrometers are heavy, cumbersome and too sensitive to mechanical and thermal perturbations for use in portable devices or for deployment in space applications. Here we propose and experimentally validate a compact FT-based hyperspectral camera, in which the FT module is an innovative ultra-stable birefringent common-path interferometer (the Translating-Wedge-Based Identical Pulses eNcoding System, TWINS). TWINS has intrinsic interferometric stability, it is lightweight and is ultracompact, making our FT-based hyperspectral camera an ideal device for portable on-field and spaceborne applications. Our prototype camera is able to measure absolute reflectance and fluorescence with very high spectral accuracy in the visible and near-infrared spectral range and can be extended to the spectroscopically rich thermal infrared range (3 mu;m to 14 μm) using suitable birefringent materials and detectors. We present some examples of application in the visible and TIR ranges.","PeriodicalId":330744,"journal":{"name":"Sensors, Systems, and Next-Generation Satellites XXVII","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131342996","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