Results 81 to 90 of about 1,780 (204)
Measurements and analysis of the radar cross section of chaff dipoles
IET Radar, Sonar &Navigation, Volume 18, Issue 11, Page 2182-2188, November 2024.Photo of a filament under test in a stereo‐foam support. Abstract A free space test method to measure the Radar Cross Section (RCS) of single dipole elements is presented. The method is such that dipoles can be measured over a large range of frequencies, in free space and without the need of an anechoic chamber.
Alessio Balleri, Brian Butters
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1691-1709, October 2024.This paper proposes a three‐dimensional interferometric inverse synthetic aperture radar imaging algorithm for the ship targets based on the cubic phase signal (CPS) model. This method approximates the azimuth echo signal as a CPS and utilises the particle swarm optimisation algorithm to estimate the higher order phase coefficients.
Junting Yang, Yong Wang
wiley +1 more source
Performance Boundaries and Tradeoffs in Super-Resolution Imaging Technologies for Space Targets
Remote SensingInverse synthetic aperture radar (ISAR) super-resolution imaging technology is widely applied in space target imaging. However, the performance limits of super-resolution imaging algorithms remain largely unexplored.
Xiaole He, Ping Liu, Junling Wang
doaj +1 more source
GLRT‐based detection of targets composed of distributed scattering centres
IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1767-1778, October 2024.A new method is presented to distinguish between the distributed and centralised scattering centres which is helpful in automatic target recognition. Experimental results demonstrates the effectiveness of the proposed algorithm which is superior to existing methods.
Amir Mohammad Hatami +2 more
wiley +1 more source
IEEE Access, 2018 Sub-Nyquist sampling is a common means of interfering with inverse synthetic aperture radar (ISAR) imaging, which has been validated for the feasibility of 1-D compressive sensing (CS) ISAR imaging.
Jiyuan Chen +3 more
doaj +1 more source
ISAR Image formation with a combined Empirical Mode Decomposition and Time-Frequency Representation
, 2015 International audienceIn this paper, a method for Inverse Synthetic Aperture Radar (ISAR) image formation based on the use of the Complex Empirical Mode Decomposition (CEMD) is proposed.
Bay Ahmed , Ahmed Hadj +2 more
core +2 more sources
Impact and Compensation of Rainfall Propagation Effect on Pol-ISAR Imaging of Parabolic Antenna
Remote SensingOrientation is an important parameter to identify the working status of a parabolic antenna. Polarimetric inverse synthetic aperture radar (Pol-ISAR) is an effective approach to sense the parabolic antenna, but the imaging process may be seriously ...
Xinjie Ju +5 more
doaj +1 more source
Three-dimensional ISAR imaging: a review
The Journal of Engineering, 2019 Three-dimensional (3D) inverse synthetic aperture radar (ISAR) imaging has been proven feasible by combining traditional ISAR imaging and interferometry.
Marco Martorella +3 more
doaj +1 more source
Long-Time Observation-Based Multiattitude ISAR Imaging Method for Moving Ships
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingLong-time synthetic aperture radar observation facilitates the tracking and identification of moving targets. However, continuous changes in the attitude of a moving target during long-duration observations cause the azimuth signal’s time– ...
Zhifeng Xie +4 more
doaj +1 more source
Microlocal ISAR for Low Signal-to-Noise Environments [PDF]
, 2006 The problem of extracting radar target information from multi-aspect high-range-resolution data is examined. We suggest a new non-imaging approach that is based on microlocal analysis, which is a mathematical theory developed to handle highfrequency ...
Borden, Brett, Cheney, Margaret
core