Results 31 to 40 of about 68,821 (260)

Enhanced Pre-STAP Beamforming for Range Ambiguous Clutter Separation with Vertical FDA Radar

open access: yesRemote Sensing, 2021
Medium pulse repetition frequency (MPRF) is an important mode in airborne radar system. Since MPRF mode brings both Doppler and range ambiguities, it causes difficulty for the airborne radar to suppress ground or sea clutter. In recent years, it has been
Weiwei Wang   +4 more
doaj   +1 more source

Effects of Atmospheric Refraction on an Airborne Weather Radar Detection and Correction Method

open access: yesAdvances in Meteorology, 2015
This study investigates the effect of atmospheric refraction, affected by temperature, atmospheric pressure, and humidity, on airborne weather radar beam paths.
Lei Wang, Ming Wei, Tao Yang, Ping Liu
doaj   +1 more source

Vertical Air Motion Retrievals From Airborne $W$-Band Cloud Radar

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
In-cloud vertical air motion is a key parameter to describe cloud dynamics and lifecycles. Short-wavelength ($Ka$- and $W$-band) radars are often used to observe clouds and extract the vertical air motion from the radar-measured Doppler velocity. However,
Haonan Chen   +3 more
doaj   +1 more source

Knowledge-Aided STAP Using Low Rank and Geometry Properties [PDF]

open access: yes, 2013
This paper presents knowledge-aided space-time adaptive processing (KA-STAP) algorithms that exploit the low-rank dominant clutter and the array geometry properties (LRGP) for airborne radar applications.
de Lamare, Rodrigo C.   +3 more
core   +2 more sources

Polarisation-space-time adaptive processing for heterogeneous clutter suppression of airborne-phased array radar

open access: yesThe Journal of Engineering, 2019
Conventional space-time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow-moving target cannot be effectively detected by space-time joint filtering in ambiguous and non ...
Yuze Sun, Jian Yang, Xiaopeng Yang
doaj   +1 more source

A Multiple Interference Suppression Algorithm Based on Airborne Bistatic Polarization Radar

open access: yesLeida xuebao, 2022
To solve the problem of the simultaneous suppression of main-lobe and side-lobe interferences, this study applies polarization information as input to the airborne bistatic radar and constructs an airborne bistatic polarization-sensitive array.
Deping XIA   +3 more
doaj   +1 more source

Evaluation of meteorological airborne Doppler radar [PDF]

open access: yes, 1984
This paper will discuss the capabilities of airborne Doppler radar for atmospheric sciences research. The evaluation is based on airborne and ground based Doppler radar observations of convective storms.
Hildebrand, P. H., Mueller, C. K.
core   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

Exploring Electrical Resistivity Tomography (ERT) to Detect Soil Pipes: Theoretical Modeling and Field Experiments

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Soil erosion research remains critical for sustainable development as it impacts soil health through different erosive processes. Recent studies on soil piping highlight advancements in detecting surface features (using UAV); however, detecting underground pipes still remains challenging.
Anita Bernatek‐Jakiel, Marta Kondracka
wiley   +1 more source

Analysis of active interference on radio station from AC UHV power

open access: yesE3S Web of Conferences, 2018
The problems of Electromagnetic Interference in Airborne Intelligence Radar Stations near the AC UHV Transmission Lines are researched in this paper, which is mainly active interference.
ZHANG Jiangong   +3 more
doaj   +1 more source

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