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SAR imaging

Multi linear sparse reconstruction for SAR imaging based on higher order SVD

Multi linear sparse reconstruction for SAR imaging based on higher order SVD

... into SAR imaging [7–11], which can extract necessary information at a lower sampling rate than Nyquist limit ...accomplish SAR imaging with the low sidelobe and pos- sess the robustness to ...

11

Monostatic and Bistatic Low Frequency Ultrawideband SAR Imaging Experiment

Monostatic and Bistatic Low Frequency Ultrawideband SAR Imaging Experiment

... UWB SAR system is subject to some difficulties in the image formation, ...bistatic SAR image formation, ...narrowband SAR data was given in [24], which gave a basic principle of the bistatic FFBP ...

10

Four-Dimensional SAR Imaging Scheme Based on Compressive Sensing

Four-Dimensional SAR Imaging Scheme Based on Compressive Sensing

... 4-D SAR imaging is an extension of the conventional microwave imaging ...of SAR tomography to the target deformation monitoring, which enables not only separating interfering targets in height ...

15

SAR Imaging on HEO Satellites with an Improved Frequency-Domain Algorithm

SAR Imaging on HEO Satellites with an Improved Frequency-Domain Algorithm

... HEO SAR mission, the Doppler centroid is extremely large when the satellite is far away from the apogee, due to high eccentricity of the ...high-squint SAR imaging, is proposed ...

13

Tomography SAR Imaging Strategy Based on Block-Sparse Model

Tomography SAR Imaging Strategy Based on Block-Sparse Model

... Compressed sensing (CS) is a model-based framework for data acquisition and signal recovery, which indicates that an unknown sparse signal can be exactly recovered from a very limited number of measurements with high ...

10

Simulation Study of the Dynamic Sea Influence on SAR Imaging of Ships

Simulation Study of the Dynamic Sea Influence on SAR Imaging of Ships

... sea imaging simulation without combining with the sea ships, and usually build a static model ...ships SAR imaging simulation, the consideration should be given to the fluctuation status, that is to ...

8

SAR Imaging of Moving Target Based on Quadratic Phase Function

SAR Imaging of Moving Target Based on Quadratic Phase Function

... and imaging of moving targets on the ground has been a sub- ject of long-standing interest in both civil and military applications such as battlefield reconnaissance, fire as- sessment, traffic management and ...

5

An Enhanced Forward-Looking SAR Imaging Algorithm Based on Compressive Sensing

An Enhanced Forward-Looking SAR Imaging Algorithm Based on Compressive Sensing

... wide-angle imaging, where the assumption of isotropic point scattering does not hold up, the CS theory is utilized to enhance the resolution [24, ...tomographic SAR (Tomo-SAR) area, the CS theory ...

13

An Improved Range-Doppler Algorithm for SAR Imaging at High Squint Angles

An Improved Range-Doppler Algorithm for SAR Imaging at High Squint Angles

... for SAR imaging at squint angles up to 80 ◦ ...the SAR images produced in missile-borne missions at a squint angle of 40 ◦ ...for SAR imaging on a curved trajectory at squint angles up ...

12

Adaptive reconstruction for azimuth signal of multichannel HRWS SAR imaging system

Adaptive reconstruction for azimuth signal of multichannel HRWS SAR imaging system

... Synthetic aperture radar (SAR) is an excellent remote sensor with good capability to provide all-weather and all-day observation of Earth’s surface [1, 2]. In recent years, the high-resolution and wide-swath ...

19

A Multi-mode SAR Imaging Chip based on a Dynamically Reconfigurable SoC Architecture Consisting of Dual-operation Engines and Multilayer Switching Network

A Multi-mode SAR Imaging Chip based on a Dynamically Reconfigurable SoC Architecture Consisting of Dual-operation Engines and Multilayer Switching Network

... (SAR) imaging systems have facilitated rapid response to ...on-board SAR imaging system design is to achieve high real-time processing ...multi-mode SAR applications, the ...

16

Impact of the Wave Number Estimation in Underground Focused SAR Imaging

Impact of the Wave Number Estimation in Underground Focused SAR Imaging

... Focused SAR imaging for tunnel detection ...underground imaging; however, by considering refraction with inexact, yet sufficiently high, estimates of soil dielectric constant, clear target images can ...

10

An efficient and accurate GB-SAR imaging algorithm based on the fractional Fourier transform

An efficient and accurate GB-SAR imaging algorithm based on the fractional Fourier transform

... accurate imaging algorithm is presented for Ground-Based Synthetic Aperture Radar (GB-SAR) or other radar systems that could be formed by a physical or synthetic linear ...The imaging algorithm is ...

9

Equivalent Verification of the Effect of the Ionospheric Faraday Rotation on GEO SAR Imaging by Ferrite

Equivalent Verification of the Effect of the Ionospheric Faraday Rotation on GEO SAR Imaging by Ferrite

... GEO SAR system works above the ionosphere as other space borne SARs, and the wireless signal travelling through the ionosphere is affected by the ionosphere, so the SAR imaging is influenced by the ...

6

SAR Imaging Through the Earth's Ionosphere.

SAR Imaging Through the Earth's Ionosphere.

... of SAR imaging by means of a scalar field (in the form of linear upchirps) that propagates through the inhomogeneous ionosphere modeled as weakly dispersive dilute cold ...of SAR images due to the ...

237

Digital spotlighting filtering optimization for SAR imaging

Digital spotlighting filtering optimization for SAR imaging

... In this paper, a synthetic aperture radar (SAR) image formation simulator is used to objectively evaluate the parameter selection within the digital spotlighting process. Specifically, recommendations for the ...

10

MIMO OFDM signal optimization for SAR imaging radar

MIMO OFDM signal optimization for SAR imaging radar

... The paper is organized as follows. Section 2 describes the ambiguity phenomenon and describes the SAR sys- tem we propose to reduce this ambiguity. The OFDM signal designed for ambiguity reduction is presented in ...

11

Application of Complete Complementary Sequence in Orthogonal MIMO SAR System

Application of Complete Complementary Sequence in Orthogonal MIMO SAR System

... (SAR) imaging processing in range dimension, an approach of depressing sidelobe level based on CC-S in MIMO SAR system was ...MIMO SAR system using CC-S and the corresponding matched filter ...

16

Title

Title

... (SAR) imaging modality that provides a high resolution map of the spatial distribution of targets and terrain based on a significant reduction in the number of transmitted and/or received electromagnetic ...

5

Vibration Target Imaging Based on the DPCA Technique in Dual channel SAR

Vibration Target Imaging Based on the DPCA Technique in Dual channel SAR

... to SAR imaging in single-channel SAR/ground moving target indication ...target imaging method. Based on the various advantages of multi-channel SAR/GMTI, especially dual-channel system, ...

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