Results 121 to 130 of about 1,347 (235)
A Clutter Suppression Approach for SAR-GMTI Based on Dual-channel DPCA
, 2014 The Displaced Phase Center Antenna (DPCA) technology, a particular form of Space Time Adaptive Processing (STAP), has been widely used in Synthetic Aperture Radar Ground Moving Target Indication (SAR-GMTI).
Zhou Shi-lin +3 more
core +1 more source
New Technology, Work and Employment, EarlyView.ABSTRACT Research on the labour agency of remote‐based online freelancers has often struggled to account for the interplay between platform dynamics, broader labour market conditions, and gendered household responsibilities. This article addresses this gap by proposing an integrated analytical framework that synthesises these dimensions to examine how ...
Jorien H. Oprins
wiley +1 more source
What's Wrong With Self‐Censorship?
Philosophy &Public Affairs, EarlyView.ABSTRACT In recent years, discourse on freedom of speech has shifted away from exclusive focus on the state and towards societal threats to speech. Amidst this change, the notion of “self‐censorship” has gained increased prominence. Not only has self‐censorship emerged as a common reference point, several recent studies identify it as embodying a ...
Gideon Elford
wiley +1 more source
Clutter suppression methods for forward-looking ground penetrating radar [PDF]
, 2021 openaire +1 more source
Clutter properties for STAP with smooth and faceted cylindrical conformal antennas
, 2010 Conformal antennas, which assume the shape of the platform, have several advantages; like reduced weight and space, aerodynamic design and increased field of view.
Björklund, Svante +2 more
core +1 more source
How Democratic Backsliding Shapes the Entry, Non‐Entry, and Waiting of Potential Civil Servants
Public Administration Review, EarlyView.ABSTRACT Democratic backsliding is coupled with politicians' undermining of the civil service's professionalism and commitment to liberal democratic values. Existing research has examined civil servants' responses. Nonetheless, politicians' attacks on democracy and the bureaucracy also affect potential recruits' career choices.
Reut Marciano +2 more
wiley +1 more source
Ultra‐Low‐Complexity Doppler‐Spread Clutter Suppression in Ground‐Based Passive Radar
Electronics LettersABSTRACT In ground‐based passive radar, the surveillance channel is mainly affected by zero‐Doppler clutter, while Doppler‐spread clutter caused by vegetation motion or structural vibration is also unavoidable in practice. Although the Doppler‐extended extensive cancellation algorithm (ECA) can effectively suppress both types of ...
Liyong Ge +3 more
openaire +1 more source
Suppression of Clutter in Multichannel SAR GMTI
, 2014 In this paper, the results of moving-target detection in multichannel UHF-band synthetic aperture radar (SAR) dataare shown. The clutter suppression is done using finite-impulse response (FIR) filtering of multichannel SAR in combination with a two-stage
Sjögren, T.K. +6 more
core
Self‐Similar Blowup for the Cubic Schrödinger Equation
Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1831-1918, August 2026.ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley +1 more source
The Turbulence Properties of 150‐km Echoes in the Lower Ionosphere
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The valley region ionosphere spans from approximately 120–200 km in altitude, and hosts a wide range of plasma, neutral, and solar interactions that create and maintain the ionosphere. In this region a ubiquitous and mysterious source of radar echoes called “150‐km echoes” has been observed since the 1960s.
William J. Longley +3 more
wiley +1 more source