Results 61 to 70 of about 7,077 (239)
Statistical Analysis of Performance of Optimisation‐Based SAR Autofocus
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.Transionospheric SAR autofocus is a variational algorithm designed to overcome the limitations of conventional autofocus methods in correcting ionospheric distortions in spaceborne SAR images. This study provides a systematic statistical analysis of its robustness, examining the effects of turbulence, clutter, and noise on performance.
Patrick Haughey +2 more
wiley +1 more source
Polarisation variation of linear polarised Bi‐ISAR system in space targets imaging
IET Radar, Sonar & Navigation, 2021 A bistatic inverse synthetic aperture radar (Bi‐ISAR) system is used to observe space targets through different viewing angles via a bistatic radar configuration. It is seen that the receiver of a linear polarised Bi‐ISAR system with a long baseline will
Linsheng Bu, Junling Wang
doaj +1 more source
Pareto‐Optimized Mobile‐Sink Routing for Energy‐Efficient Wireless Sensor Networks
International Journal of Energy Research, Volume 2025, Issue 1, 2025.Wireless sensor networks (WSNs) are inherently constrained by limited battery resources, making the design of energy‐efficient communication protocols critical for extending network lifetime. Cluster‐based routing, enhanced through optimization algorithms, has emerged as a promising solution to balance energy consumption and improve scalability.
Ayman A. Alharbi +3 more
wiley +1 more source
Experimental Results of High-Resolution ISAR Imaging of Ground-Moving Vehicles with a Stationary FMCW Rada [PDF]
, 2015 In the paper experimental results of ISAR (Inverse Synthetic Aperture Radar) processing obtained with highresolution radar are presented. Targets under observation were ground moving vehicles, such as cars, trucks and tractors.
Gromek, Artur +5 more
core +1 more source
Improved Scattering Center Extraction From ISAR Data Using Simplex Optimization
International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.Inverse synthetic‐aperture radar (ISAR) techniques have started to play a key role in calculating the radar cross‐section (RCS) values of objects from near‐field measurements. It is assumed that the scene (or the scatterer) is composed of scattering centers (SCs) whose locations and complex amplitudes are found from the ISAR data.
Bahar Ugurdogan +2 more
wiley +1 more source
Super-Resolution Time of Arrival Estimation Using Random Resampling in Compressed Sensing [PDF]
, 2018 There is a strong demand for super-resolution time of arrival (TOA) estimation techniques for radar applications that can that can exceed the theoretical limits on range resolution set by frequency bandwidth.
Fang SHANG +3 more
core +2 more sources
Analysis for sparse channel representation based on dictionary learning in massive MIMO systems
IET Communications, Volume 18, Issue 20, Page 1728-1740, December 2024.We provide a qualitative analytical formula for dictionary sparse representation accuracy and establish an optimal upper bound. Abstract The accuracy analysis of dictionary sparse representation for channels in massive MIMO systems is a relatively unexplored field.
Qing‐Yang Guan
wiley +1 more source
Three-Dimensional Imaging Method for Array ISAR Based on Sparse Bayesian Inference
Sensors, 2018 The problem of synthesis scatterers in inverse synthetic aperture radar (ISAR) make it difficult to realize high-resolution three-dimensional (3D) imaging.
Zekun Jiao +3 more
doaj +1 more source
An Efficient ISAR Imaging Method for Multiple Targets [PDF]
, 2019 This paper proposes an efficient method to obtain TSAR images of multiple targets flying in formation. The proposed method improves the coarse alignment and segmentation of the existing method.
Joo-Ho Jung +3 more
core +1 more source
A method of 2D and 3D display of radar terminal base on programmable pipeline
IET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2513-2520, December 2024.In contrast to the ideal 3D display for meteorological radar, there is no 3D mode in the military engineering field. How to realise the 2D and 3D display for general radar terminal efficiently using the local graphics processing unit (GPU), which is impossible to realise with the traditional method of field programmable gate array now, has became an ...
Zhenkui Miao +3 more
wiley +1 more source