Results 71 to 80 of about 65,382 (157)

High Frequency Radar Perspective of Putative Subglacial Liquid Water on Mars

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Anomalously bright radar reflections from the base of Mars' south polar cap raise the tantalizing possibility of present‐day liquid water. Orosei et al. (2018, https://doi.org/10.1126/science.aar7268) first reported bright subsurface echoes from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) prompting studies of ...
Gareth A. Morgan, Matthew R. Perry, Bruce A. Campbell, Nathaniel E. Putzig, Jennifer L. Whitten, Fabrizio Bernardini   +5 more
wiley   +1 more source

Topside Measurements at Jicamarca During the 2019-2020 Deep Solar Minimum. [PDF]

J Geophys Res Space Phys, 2021
Derghazarian S, Hysell DL, Varney RH.
europepmc   +1 more source

Statistical Analysis of Performance of Optimisation‐Based SAR Autofocus

IET Radar, Sonar & Navigation
Transionospheric SAR autofocus is a variational algorithm designed to circumvent the deficiencies of conventional autofocus techniques in correcting the distortions of spaceborne SAR images due to ionospheric turbulence.
Patrick Haughey, Mikhail Gilman, Semyon Tsynkov   +2 more
doaj   +1 more source

Ionospheric Observatory Development At Mario Zucchelli Station

, 2004
Since 1995 Italian Ionospheric Antarctic Observatory at Terra Nova Bay, now “MARIO ZUCCHELLI”, station (geographic coordinates: 74.70°S, 164.11°E) performs continuous and systematic ionospheric vertical soundings.
De Franceschi, G., Doumaz, F., Zuccheretti, E., Romano, V., Tutone, G., Pezzopane, M., Alfonsi, Lu.   +6 more
core   +2 more sources

Classification Method of Uniform Circular Array Radar Ground Clutter Data Based on Chaotic Genetic Algorithm. [PDF]

Sensors (Basel), 2021
Yang B, Huang M, Xie Y, Wang C, Rong Y, Huang H, Duan T.   +6 more
europepmc   +1 more source

High-Resolution Doppler and Azimuth Estimation and Target Detection in HFSWR: Experimental Study. [PDF]

Sensors (Basel), 2022
Golubović D, Erić M, Vukmirović N.
europepmc   +1 more source

Previously unreported optical emissions generated during ionospheric heating [PDF]

, 2008
Several radio-induced optical emissions were generated during an ionospheric heating experiment performed at the High Power Auroral Stimulation (HIPAS) facility near Two Rivers, Alaska.
Gustavsson, B., Pedersen, T., Kosch, M.J., Mutiso, C.K., Hughes, J.M., Sivjee, G.G.   +5 more
core   +1 more source

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

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