Results 21 to 30 of about 77 (75)

Efficient Simulation for Fixed-Receiver Bistatic SAR with Time and Frequency Synchronization Errors [PDF]

Radioengineering, 2015
Time and frequency synchronization is the key technique of bistatic synthetic aperture radar (BiSAR) system, and raw data simulation is an effective tool for verifying the time and frequency synchronization techniques. According to the two-dimensional (2-
Feifei Yan, Wenge Chang, Xiangyang Li
doaj  

Azimuth-Variant Signal Processing in High-Altitude Platform Passive SAR with Spaceborne/Airborne Transmitter

Remote Sensing, 2013
High-altitude platforms (HAP) or near-space vehicle offers several advantages over current low earth orbit (LEO) satellite and airplane, because HAP is not constrained by orbital mechanics and fuel consumption. These advantages provide potential for some
Huaizong Shao, Wen-Qin Wang
doaj   +1 more source

Multi-Baseline Bistatic SAR Three-Dimensional Imaging Method Based on Phase Error Calibration Combining PGA and EB-ISOA

Remote Sensing
Tomographic synthetic aperture radar (TomoSAR) is an advanced three-dimensional (3D) synthetic aperture radar (SAR) imaging technology that can obtain multiple SAR images through multi-track observations, thereby reconstructing the 3D spatial structure ...
Jinfeng He, Hongtu Xie, Haozong Liu, Zhitao Wu, Bin Xu, Nannan Zhu, Zheng Lu, Pengcheng Qin   +7 more
doaj   +1 more source

A Novel SAR Imaging Method for GEO Satellite–Ground Bistatic SAR System with Severe Azimuth Spectrum Aliasing and 2-D Spatial Variability

Remote Sensing
The satellite–ground bistatic configuration, which uses geosynchronous synthetic aperture radar (GEO SAR) for illumination and ground equipment for reception, can achieve wide coverage, high revisit, and continuous illumination of interest areas.
Jingjing Ti, Zhiyong Suo, Yi Liang, Bingji Zhao, Jiabao Xi   +4 more
doaj   +1 more source

Spaceborne Azimuth Multichannel BiSAR With Geosynchronous Transmitter and LEO Receiver: High-Resolution Wide-Swath Image Formation

IEEE Access, 2019
Spaceborne azimuth multichannel bistatic synthetic aperture radar (AMC-BiSAR) system employed inclined geosynchronous (GEO) transmitter and low-Earth-orbit (LEO) receiver is capable of providing a vast area of surveillance and fine spatial resolution ...
Yuekun Wang, Zheng Lu
doaj   +1 more source

Demonstration of Phase-Preserving Synchronization RFI Suppression for L-Band Spaceborne Bistatic Interferometric SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spaceborne bistatic synthetic aperture radar (BiSAR) systems utilize an intersatellite link to achieve phase synchronization. However, radio frequency interference (RFI) from communication satellites and ground-based radars often contaminates the ...
Yanyan Zhang, Junfeng Li, Pingping Lu, Tianyuan Yang, Robert Wang   +4 more
doaj   +1 more source

An Improved Pre-Processing Algorithm for Resolution Optimization in Galileo-Based Bistatic SAR

IEEE Access, 2019
Galileo based bistatic synthetic aperture radar (Galileo-BiSAR) is a subclass of passive radar, where the Galileo satellite is used as the transmitter and the receiver can be mounted on a moving vehicle or fixed on the ground.
Zhangfan Zeng, Zhiming Shi, Yanling Zhou, Yuzhang Chen, Yongcai Pan   +4 more
doaj   +1 more source

An Advanced Interferometric Baseline Estimation Method (IBEM) for Spaceborne Bistatic SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spaceborne bistatic synthetic aperture radar (BiSAR) employs single-pass cross-track interferometry (XTI) to invert digital elevation models (DEMs) of target areas.
Yanyan Zhang, Junfeng Li, Pingping Lu, Robert Wang   +3 more
doaj   +1 more source

Integrated Time and Phase Synchronization Strategy for a Multichannel Spaceborne-Stationary Bistatic SAR System

Remote Sensing, 2016
The spatial separation of the transmitter and receiver in Bistatic Synthetic Aperture Radar (BiSAR) makes it a promising and useful supplement to a classical Monostatic SAR system (MonoSAR).
Feng Hong, Robert Wang, Zhimin Zhang, Pingping Lu, Timo Balz   +4 more
doaj   +1 more source

An Extended Time Scaling Algorithm Based on the Spatial Inverse Mapping for Bistatic SAR Imaging With Complex Trajectory

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Bistatic synthetic aperture radar (BiSAR) can perform remote imaging at any position, thus playing a crucial role in remote sensing applications. In BiSAR imaging with complex trajectory, an inevitable issue is the complicated correspondence between the ...
Yujie Liang, Yi Liang, Yanyi Zhao, Zhiyong Suo, Mengdao Xing   +4 more
doaj   +1 more source