Results 151 to 160 of about 37,267,212 (171)

On the Frequency Dispersion in DBF SAR and Digital Scalloped Beamforming

IEEE Transactions on Geoscience and Remote Sensing, 2020
Digital beamforming (DBF) with Scan-On-Receive (SCORE) in elevation is a powerful technique for spaceborne synthetic aperture radar (SAR) to achieve high-resolution wide-swath (HRWS) images. DBF in spaceborne SAR should be implemented in real-time to reduce the volume of the downloaded data.
Qingchao Zhao, Yashi Zhou, Kaiyu Liu
exaly   +2 more sources

61-Channel Digital Beamforming (DBF) Transmitter Array

2009 Asia Pacific Microwave Conference, 2009
This paper presents a 61-channel digital beamforming transmitter array antenna for the mobile satellite communication application, that can form sixteen beams simultaneously .After the general introduction, the architecture and interconnect design of the array is discussed.
Guang Liang, Wenbin Gong, Huijie Liu, Jinpei Yu   +3 more
exaly   +2 more sources

Demonstration of Intermediate Frequency Digital Beamforming With X-Band and C-Band DBF-SARs

IEEE Geoscience and Remote Sensing Letters, 2022
Zhen Chen, Jinsong Qiu
exaly   +3 more sources

SMF-DBF: Subband Match Filtering and Digital Beamforming for MIMO-SAR Echo Separation to Reduce the System Complexity

IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023
Daiyin Zhu, Guodong Jin
exaly   +2 more sources

Assessment of Digital Beamforming Radar (DBF) and Spread Spectrum Digital Beamforming Radar (SSDBF)

2017 14th IEEE India Council International Conference (INDICON), 2017
Spread Spectrum Digital Beamforming (SSDBF), an innovative methodology which uses only one transceiver element overcomes the limitations of Conventional Digital Beamforming (CDBF) which uses multiple transceiver elements per antenna element. This is done by using the concept of Code Division Multiple Access (CDMA) multiplexing and de-multiplexing where
Nima Donka Tamang, Samarendra Nath Sur, Soumyasree Bera, Rabindranath Bera   +3 more
openaire   +1 more source

X/Ka-Band Dual-Polarized Digital Beamforming Synthetic Aperture Radar [PDF]

IEEE Transactions on Microwave Theory and Techniques, 2017
This paper presents a digital beamforming (DBF) synthetic aperture radar (SAR) for future spaceborne earth observation systems. The objective of the DBF-SAR system is to achieve a low cost, lightweight, low-power consumption, and dual-band (X/Ka) dual ...
Giandomenico Amendola, Chunxu Mao, Marwan Younis   +2 more
exaly   +2 more sources

Digital beamforming (DBF) antenna system for mobile communications

Proceedings of International Symposium on Phased Array Systems and Technology, 2002
We have developed a DBF signal processor with application specific integrated circuits (ASICs). We show a hardware implementation of this signal processor and experimental results. The DBF also has the advantage of adaptive array antenna signal processing.
openaire   +1 more source

Performance Demonstration of Dispersive SCORE: Digital Scalloped Beamforming With X-Band and C-Band DBF-SARs

IEEE Geoscience and Remote Sensing Letters, 2022
Qingchao Zhao, Zhen Chen
exaly  

Realizing Sample Matrix Inversion (SMI) in Digital BeamForming (DBF) System

IEICE Proceeding Series, 2013
Hao, Lei, Zaiping, Nie, Feng, Yang
openaire   +1 more source

Beamforming Experiment With a DBF Multibeam Antenna in a Mobile Satellite Environment

IEEE Transactions on Antennas and Propagation, 1997
R Miura, I Chiba, Y Karasawa
exaly