Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Brian D. Pollard"'
Publikováno v:
IGARSS
During the 2020 hurricane season, scientists at the National Oceanic and Atmospheric Administration (NOAA)/National Environmental Satellite, Data, and Information Service (NESDIS)/Center for Satellite Applications and Research (STAR) Ocean Surface Wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::292bea70eeed04959100b5b08d667fd4
https://doi.org/10.1109/igarss47720.2021.9554385
https://doi.org/10.1109/igarss47720.2021.9554385
Publikováno v:
2020 IEEE Aerospace Conference.
Autonomous vehicle landing and proximity operations rely on accurate range and velocity measurements for guidance, navigation, and landing. As preeminent examples, Mars Science Laboratory and Mars 2020 both deploy a “Terminal Descent Sensor” (TDS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2985431f191dda945ff072c69b05eb
https://doi.org/10.1109/aero47225.2020.9172547
https://doi.org/10.1109/aero47225.2020.9172547
Autor:
Brian D. Pollard, James C. Carswell
Publikováno v:
2019 IEEE Radar Conference (RadarConf).
Mars Science Laboratory's unprecedented “sky-crane” landing utilized a new “Terminal Descent Sensor” (TDS), a Ka-band pencil beam radar for high accuracy measurements of line-of-sight range and velocity. While Mars 2020 will utilize the same
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02c66642632023a48400d47e06bc4da4
https://doi.org/10.1109/radar.2019.8835584
https://doi.org/10.1109/radar.2019.8835584
Autor:
James R. Carswell, Brian D. Pollard
Publikováno v:
2019 IEEE Aerospace Conference.
Mars Science Laboratory's unprecedented “sky-crane” landing utilized a new “Terminal Descent Sensor” (TDS), a Ka-band pencil beam radar for high accuracy measurements of line-of-sight range and velocity. While Mars 2020 will utilize the same
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87903470850ac00a35fa1beceed96694
https://doi.org/10.1109/aero.2019.8741833
https://doi.org/10.1109/aero.2019.8741833
Autor:
Brian D. Pollard, Curtis W. Chen
Publikováno v:
Journal of Spacecraft and Rockets. 51:1208-1216
The Mars Science Laboratory landing architecture relies on unprecedented onboard ground-relative navigation accuracy, which is provided by the Terminal Descent Sensor. The Terminal Descent Sensor is a Ka-band landing radar that was developed specific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::586e5c29ca2687cfa6eebeaceeadf8da
https://doi.org/10.2514/1.a32641
https://doi.org/10.2514/1.a32641
Autor:
Stephen J. Frasier, Dennis W. Thomson, John C. Wyngaard, Robert E. McIntosh, Brian D. Pollard, Samir Khanna
Publikováno v:
Journal of the Atmospheric Sciences. 57:2281-2296
The local structure and evolution of the convective boundary layer (CBL) are studied through measurements obtained with a volume-imaging radar, the turbulent eddy profiler (TEP). TEP has the unique ability to image the temporal and spatial evolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a03f916aa9754dfb936ac54f7028a7c
https://doi.org/10.1175/1520-0469(2000)057<2281:lsotcb>2.0.co
https://doi.org/10.1175/1520-0469(2000)057<2281:lsotcb>2.0.co
Autor:
Geoffrey Hopcraft, Daniel H. Schaubert, Robert E. McIntosh, Stephen J. Frasier, Christopher D. Cherry, Brian D. Pollard, James B. Mead
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 15:849-859
This paper describes the turbulent eddy profiler (TEP), a volume-imaging, UHF radar wind profiler designed for clear-air measurements in the atmospheric boundary layer on scales comparable to grid cell sizes of large eddy simulation models. TEP emplo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::712292603e9e36cd05f55a822887b734
https://doi.org/10.1175/1520-0426(1998)015<0849:avirwp>2.0.co
https://doi.org/10.1175/1520-0426(1998)015<0849:avirwp>2.0.co
Autor:
Elaine Chapin, Brian D. Pollard, S. Shaffer, Maurio B. Grando, Kyung Pak, G. Hamilton, Chialin Wu
Publikováno v:
2013 IEEE Radar Conference (RadarCon13).
The Mars Science Laboratory's rover named Curiosity successfully landed on Mars on August 6, 2012. One component of the Mars Science Laboratory (MSL) Entry, Descent, and Landing (EDL) system was the Terminal Descent Sensor (TDS) landing radar. In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd0540c93e324574134d649824bb0f41
https://doi.org/10.1109/radar.2013.6586044
https://doi.org/10.1109/radar.2013.6586044
Autor:
Brian D. Pollard
Publikováno v:
2012 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS).
Safe landing on planetary bodies has traditionally been accomplished via radar systems, which have advantages of performing independent of lighting conditions, and of being far less susceptible to dust and other contaminant interactions than optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4494a586357528fdd8158d4926d67ca
https://doi.org/10.1109/csics.2012.6340111
https://doi.org/10.1109/csics.2012.6340111
Autor:
Curtis W. Chen, Brian D. Pollard
Publikováno v:
2009 IEEE Aerospace conference.
The soft-touchdown, “sky-crane” concept employed by the 2009 NASA Mars Science Laboratory mission requires an order-of-magnitude improvement from previous missions in the sensing of vehicle velocity and altitude. This paper describes the developm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424b8a6716d250b92dd33cbc0500e6fc
https://doi.org/10.1109/aero.2009.4839463
https://doi.org/10.1109/aero.2009.4839463