Results 71 to 80 of about 19,438 (271)

Space-time Characteristics and Experimental Analysis of Broadening First-order Sea Clutter in HF Hybrid Sky-surface Wave Radar [PDF]

, 2014
In high frequency (HF) hybrid sky-surface wave radar, the first-order sea clutter broadening is very complex and serious under the influence of ionosphere and bistatic angle, which affects the detection of ship target.
Chu, T.Q., Li, Y.J., Wang, Z.Q., Wei, Y.S., Xu, R.Q.   +4 more
core   +1 more source

Capabilities of Earth-based radar facilities for near-Earth asteroid observations

, 2016
We evaluated the planetary radar capabilities at Arecibo, the Goldstone 70-m DSS-14 and 34-m DSS-13 antennas, the 70-m DSS-43 antenna at Canberra, the Green Bank Telescope, and the Parkes Radio Telescope in terms of their relative sensitivities and the ...
Benner, Lance. A. M., Busch, Michael. W., Margot, Jean-Luc, Naidu, Shantanu. P., Taylor, Patrick. A.   +4 more
core   +1 more source

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

Earth and Space Science, Volume 12, Issue 1, January 2025.
Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang, Batuhan Osmanoğlu, Bernd Scheuchl, Shadi Oveisgharan, Jeanne M. Sauber, MinJeong Jo, Ala Khazendar, Ekaterina Tymofyeyeva, Betsy Wusk, Arif Albayrak   +9 more
wiley   +1 more source

An LFM-Based Semiblind Synchronization Method for Bistatic Radar Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Bistatic radar provides an additional degree of freedom in the observing geometry for imaging by using a spatially separated transmitter and receiver. This capability allows the capture of scattering phenomena at various bistatic sensing angles, which ...
James Park, Raghu G. Raj
doaj   +1 more source

A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar

Leida xuebao, 2018
The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading.
Wang Yuzhuo, Zhu Shengqi, Xu Jingwei
doaj   +1 more source

Towards An Optimal Solution to Place Bistatic Radars for Belt Barrier Coverage with Minimum Cost [PDF]

arXiv, 2022
With the rapid growth of threats, sophistication and diversity in the manner of intrusion, traditional belt barrier systems are now faced with a major challenge of providing high and concrete coverage quality to expand the guarding service market.
arxiv  

Impact of beacon interval on the performance of WiFi-based passive radar against human targets [PDF]

, 2018
The capability of WiFi-based passive radar to detect, track and profile human targets in both indoor and outdoor environment has been widely demonstrated.
BONGIOANNI, CARLO, COLONE, Fabiola, LOMBARDO, Pierfrancesco, MILANI, ILEANA   +3 more
core   +1 more source

Using Ground‐Penetrating Radar to Infer Ice Wedge Characteristics Proximal to Water Tracks

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 1, January 2025.
Abstract Massive ground ice in Arctic regions underlain using continuous permafrost influences hydrologic processes, leading to ground subsidence and the release of carbon dioxide and methane into the atmosphere. The relation of massive ground ice such as ice wedges to water tracks and seasonally saturated hydrologic pathways remains uncertain.
Rachel H. Harris, Sarah G. Evans, Scott T. Marshall, Sarah E. Godsey, Andrew D. Parsekian   +4 more
wiley   +1 more source

Target Coordinates Estimation by Passive Radar with a Single non-Cooperative Transmitter and a Single Receiver [PDF]

Journal of Communications Software and Systems, 2020
Passive radar is a bistatic radar that detects and tracks targets by processing reflections from non-cooperative transmitters. Due to the bistatic geometry for this radar, a target can be localized in Cartesian coordinates by using one of the following ...
Ali Kazem, Adnan Malki, Anas Mahmoud Almanofi   +2 more
doaj  

Decorrelated Unbiased Converted Measurement for Bistatic Radar Tracking [PDF]

arXiv, 2020
Tracking with bistatic radar measurements is challenging due to the fact that the measurements are nonlinear functions of the Cartesian state. The converted measurement Kalman filter (CMKF) converts the raw measurement into Cartesian coordinates prior to tracking, which avoids the pitfalls of the extended Kalman filter (EKF). The challenges of CMKF are
arxiv