Results 21 to 30 of about 2,220,668 (92)

A Concept for High Performance Reflector-Based Synthetic Aperture Radar [PDF]

, 2010
The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirement of next generation systems. In order to cope with the evolution of SAR, the design of the new systems will need to meet higher requirements for ...
Patyuchenko, Anton, Huber, Sigurd, Anton Patyuchenko, Alberto Moreira, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Sigurd Huber, Marwan Younis, Gerhard Krieger   +9 more
core   +1 more source

Sentinel‐1 Detects Firn Aquifers in the Greenland Ice Sheet

Geophysical Research Letters, Volume 47, Issue 3, 16 February 2020., 2020
Abstract Firn aquifers in Greenland store liquid water within the upper ice sheet and impact the hydrological system. Their location and area have been estimated with airborne radar sounder surveys (Operation IceBridge, OIB). However, the OIB coverage is limited to narrow flight lines, offering an incomplete view. Here, we show the ability of satellite
I. Brangers, H. Lievens, C. Miège, M. Demuzere, L. Brucker, G. J. M. De Lannoy   +5 more
wiley   +1 more source

Multidimensional Radar Waveforms: A New Paradigm for the Design and Operation of Highly Performant Spaceborne Synthetic Aperture Radar Systems [PDF]

, 2007
This paper introduces and analyses the innovative paradigm of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Alberto Moreira, Moreira, Alberto, Nicolas Gebert, Gebert, Nicolas, Krieger, Gerhard, Gerhard Krieger   +5 more
core   +1 more source

Processing Technology Based on Radar Signal Design and Classification

International Journal of Aerospace Engineering, Volume 2020, Issue 1, 2020., 2020
It is well known that the application of radar is becoming more and more popular with the development of the signal technology progress. This paper lists the current radar signal research, the technical progress achieved, and the existing limitations.
Jianping Ou, Jun Zhang, Ronghui Zhan, Angelo Cervone   +3 more
wiley   +1 more source

Ship Velocity Estimation in Airborne Along‐Track Interferometric SAR Imagery Based on the Fractional Fourier Transform

International Journal of Antennas and Propagation, Volume 2020, Issue 1, 2020., 2020
Synthetic aperture radar (SAR) was originally exploited to image stationary scenes. However, it is important to derive target information of velocity for many applications. The fractional Fourier transform (FrFT) is a generalization of the classical Fourier transform and is well‐known as a useful tool to estimate the chirp rate of linear frequency ...
Chao Chen, Yan Li, Kuihua Huang, Yonghong Long, Linlin Zhang, Kewei Ouyang, Chien-Jen Wang   +6 more
wiley   +1 more source

Detection of Road Foreign Body Intrusion with Synthetic Aperture Radar

Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
Foreign body intrusion will cause interruption of road transportation and bring great threat to operation safety. Detection of foreign body intrusion is a key step for efficient recognition, location, and tracking of foreign body intrusion. Current detection approaches of foreign body intrusion are available, but can only detect in a certain range.
Lili Hou, Qian Zhang, Saeed Eftekhar Azam   +2 more
wiley   +1 more source

Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems [PDF]

, 2011
The Azimuth Phase Coding (APC) technique, proposed to suppress range ambiguities in conventional SAR systems, stands out for its low implementation complexity and its effectiveness for point and distributed ambiguities.
Bordoni, Federica, Federica Bordoni, Younis, Marwan, Krieger, Gerhard, Marwan Younis, Gerhard Krieger   +5 more
core   +1 more source

Spaceborne Bi- and Multistatic SAR: Potential and Challenges [PDF]

, 2006
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability ...
Moreira, Alberto, Krieger, Gerhard
core   +1 more source

Ground clutter simulation for airborne forward‐looking multi‐channel LFMCW radar

The Journal of Engineering, Volume 2019, Issue 21, Page 7376-7380, November 2019., 2019
Ground clutter is a crucial factor that affects the detection performance of the airborne forward‐looking multi‐channel linear frequency modulated continuous wave (LFMCW) radar, so the distribution characteristics of studying the ground clutter plays an important role in suppressing ground clutter and improving radar detection performance.
Hai Li, Jialing Duan, Di Song
wiley   +1 more source

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

Advanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley   +1 more source