Results 41 to 50 of about 527,568 (195)
Improved range model based on parameter estimation for high resolution and high squint LEO SAR
The Journal of Engineering, 2019 Due to the curve of the LEO synthetic aperture radar (SAR) orbit and the rotation of the earth, the high resolution imaging for LEO SAR is always facing the problem of obtaining accurate range history.
Tong Gu +3 more
doaj +1 more source
RadYOLOLet: Radar Detection and Parameter Estimation Using YOLO and WaveLet [PDF]
arXiv, 2023 Detection of radar signals without assistance from the radar transmitter is a crucial requirement for emerging and future shared-spectrum wireless networks like Citizens Broadband Radio Service (CBRS). In this paper, we propose a supervised deep learning-based spectrum sensing approach called RadYOLOLet that can detect low-power radar signals in the ...
arxiv
MIMO-Based Forward-Looking SAR Imaging Algorithm and Simulation
International Journal of Antennas and Propagation, 2014 Multiple-input multiple-output (MIMO) radar imaging can provide higher resolution and better sensitivity and thus can be applied to targets detection, recognition, and tracking.
Ziqiang Meng +5 more
doaj +1 more source
Remote Sensing, 2018 Near space is the key to integrating “sky„ and “space„ into the future. A synthetic aperture radar (SAR) that works in this area would initiate a technological revolution for remote sensing applications.
Zhanye Chen +5 more
doaj +1 more source
Estimation of Bistatic Radar Detection Performance Under Discrete Clutter Conditions Using Stochastic Geometry [PDF]
arXiv, 2022 We propose a metric called the bistatic radar detection coverage probability to evaluate the detection performance of a bistatic radar under discrete clutter conditions. Such conditions are commonly encountered in indoor and outdoor environments where passive radars receivers are deployed with opportunistic illuminators.
arxiv
Property Analysis of MIMO-Based Missile-Borne Forward-Looking SAR
International Journal of Antennas and Propagation, 2014 As a special multiple-input multiple-output (MIMO) radar networking mode, missile-borne forward-looking synthetic aperture radar (MFL-SAR) has many potential applications. This paper describes and analyzes properties of this new configuration.
Yachao Li +5 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2022 Sparse recovery algorithms have been applied to the Space‐time adaptive processing for reducing the requirement of samples over the past 15 years. However, many Sparse recovery algorithms are not robust and need accurate user parameters.
Cheng Liu +3 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2021 Pulse repetition frequency (PRF) is an essential parameter in synthetic aperture radar (SAR). However, a small PRF value will cause spectrum ambiguity and a large value will increase the computational complexity.
Yujie Liang +3 more
doaj +1 more source
Remote Sensing, 2022 Long-time integration is an effective method for improving the signal–to–noise ratio (SNR) of an echo. However, if the target radar cross-section (RCS) fluctuates over the long integration time, the traditional coherent integration and noncoherent ...
Zhenghe Zhang +4 more
doaj +1 more source
Fast ship contour extraction in SAR images
The Journal of Engineering, 2019 Fast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes extracted from them are salient features in ship classification and recognition.
Yuan-Ying Nie +2 more
doaj +1 more source