Results 91 to 100 of about 1,492 (208)

Backpack VLBI terminal with subscentimeter capability [PDF]

Backpack portable equipment was developed to measure vector baseline from approximately 1 km to 100 km in length with subcentimeter to few centimeter accuracy. The equipment design features as well as the instrumentation specifications are discussed.
Connselman, C. C., III, Cox, D. B., Jr., Greenspan, R. L., Shapiro, I. I.   +3 more
core   +1 more source

Sky and ground - wave high frequency (HF) radars: challenges in modelling, simulation and application preface [PDF]

, 2010
Radar systems operating at high frequency (HF) are able to exploit a variety of propagation mechanisms to achieve line-of-sight (LOS) illumination as well as over-the-horizon coverage, thereby providing many opportunities for long range, wide area multi ...
Sevgi, Levent
core  

Novel multi-mode shortwave broadcast transmitting antenna array. [PDF]

Sci Rep, 2022
Yao W, Gao H, Tian Y, Lu T, Zhang X.
europepmc   +1 more source

Statistical characteristics of MST radar echoes and its interpretation [PDF]

Two concepts of fundamental importance are reviewed: the autocorrelation function and the frequency power spectrum. In addition, some turbulence concepts, the relationship between radar signals and atmospheric medium statistics, partial reflection, and ...
Woodman, Ronald F.
core   +1 more source

Time-Frequency Characteristics of Ionospheric Clutter in High Frequency Surface Wave Radar during Typhoon Muifa

, 2023
Xiaolong Zheng, Bangjie Li, Daqiao ZHANG, Di YAO, Xuguang Yang   +4 more
openalex   +2 more sources

Geospace Plume and Its Impact on Dayside Magnetopause Reconnection Rate. [PDF]

J Geophys Res Space Phys, 2021
Zou Y, Walsh BM, Shi X, Lyons L, Liu J, Angelopoulos V, Ruohoniemi JM, Coster AJ, Henderson MG.   +8 more
europepmc   +1 more source

Performance Analyses of a RAIM Algorithm for Kalman Filter with GPS and NavIC Constellations. [PDF]

Sensors (Basel), 2021
Bhattacharyya S.
europepmc   +1 more source

Exploring the Interior of Europa with the Europa Clipper. [PDF]

Space Sci Rev, 2023
Roberts JH, McKinnon WB, Elder CM, Tobie G, Biersteker JB, Young D, Park RS, Steinbrügge G, Nimmo F, Howell SM, Castillo-Rogez JC, Cable ML, Abrahams JN, Bland MT, Chivers C, Cochrane CJ, Dombard AJ, Ernst C, Genova A, Gerekos C, Glein C, Harris CD, Hay HCFC, Hayne PO, Hedman M, Hussmann H, Jia X, Khurana K, Kiefer WS, Kirk R, Kivelson M, Lawrence J, Leonard EJ, Lunine JI, Mazarico E, McCord TB, McEwen A, Paty C, Quick LC, Raymond CA, Retherford KD, Roth L, Rymer A, Saur J, Scanlan K, Schroeder DM, Senske DA, Shao W, Soderlund K, Spiers E, Styczinski MJ, Tortora P, Vance SD, Villarreal MN, Weiss BP, Westlake JH, Withers P, Wolfenbarger N, Buratti B, Korth H, Pappalardo RT, Interior Thematic Working Group.   +61 more
europepmc   +1 more source

A New Tool for Forecasting Solar Drivers of Severe Space Weather [PDF]

, 2010
This poster describes a tool that is designed to forecast solar drivers for severe space weather. Since most severe space weather is driven by Solar flares and Coronal Mass Ejections (CMEs) - the strongest of these originate in active regions and are ...
Adams, J. H., Barghouty, A. F., Falconer, D., Khazanov, I., Moore, R.   +4 more
core   +1 more source

Multipath signal model development [PDF]

The development and use of mathematical models of signals received through the multipath environmental of a TDRS-to-user spacecraft link and vice versa are discussed. The TDRS (tracking and data relay satellite) will be in synchronous orbit.
Ghais, A. F., Wachsman, R. H.
core   +1 more source