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One of the promising technologies for LTE Evolution is full-duplex radio, an innovation is expected to double the spectral efficiency. To realize full-duplex in practice, the main challenge is overcoming self-interference, and to do so,…

信息论 · 计算机科学 2017-02-16 Min Soo Sim , MinKeun Chung , Dongkyu Kim , Jaehoon Chung , Dong Ku Kim , Chan-Byoung Chae

The 21 cm radiation of neutral hydrogen provides crucial information for studying the early universe and its evolution. To advance this research, countries have made significant investments in constructing large low-frequency radio…

天体物理仪器与方法 · 物理学 2025-08-04 Ming-wei Qin , Rui Tang , Ying-hui Zhou , Chang-jun Lan , Wen-hao Fu , Huan Wang , Bao-lin Hou , Zamri , Jin-song Ping , Wen-jun Yang , Liang Dong

Recently, full-duplex (FD) communications with simultaneous transmission and reception on the same channel has been proposed. The FD receiver, however, suffers from inevitable self-interference (SI) from the much more powerful transmit…

信息论 · 计算机科学 2014-01-15 Lauri Anttila , Dani Korpi , Ville Syrjälä , Mikko Valkama

Single-antenna full-duplex communication technology has the potential to substantially increase spectral efficiency. However, limited propagation domain cancellation of single-antenna system results in a higher impact of receiver chain…

信号处理 · 电气工程与系统科学 2019-06-19 Md Atiqul Islam , Besma Smida

In the context of satellite communications, random access (RA) methods can significantly increase throughput and reduce latency over the network. The recent RA methods are based on multi-user multiple access transmission at the same time…

信息论 · 计算机科学 2014-04-16 Karine Zidane , Jérôme Lacan , Marie-Laure Boucheret , Charly Poulliat

Because of the denser active use of the spectrum, and because of radio telescopes higher sensitivity, radio frequency interference (RFI) mitigation has become a sensitive topic for current and future radio telescope designs. Even if quite…

天体物理仪器与方法 · 物理学 2017-03-03 Dumez-Viou Cédric , Weber Rodolphe , Ravier Philippe

Radio Frequency Interference (RFI) of impulsive nature is created by sources like sparking on high-power transmission lines due to gap or corona discharge and automobile sparking, and it affects the entire observing frequency bands of…

天体物理仪器与方法 · 物理学 2023-05-10 Kaushal D. Buch , Ruta Kale , Mekhala Muley , Sanjay Kudale , Ajithkumar B.

Neural network (NN) based methods are applied to the detection of radio frequency interference (RFI) in post-correlation,post-calibration time/frequency data. While calibration doesaffect RFI for the sake of this work a reduced dataset…

天体物理仪器与方法 · 物理学 2020-07-31 Kyle Harrison , Amit Kumar Mishra

Reconfigurable Intelligent Surfaces (RIS) have recently gained attention as a means to dynamically shape the wireless propagation environment through programmable reflection control. Among the numerous applications, an important emerging…

信号处理 · 电气工程与系统科学 2025-12-23 Xinrui Li , R. Michael Buehrer , Steven W. Ellingson

Photonically-synthesized microwave signals have demonstrated the ability to surpass the phase-noise performance achievable by traditional means of RF signal generation. However, in order for microwave-photonic oscillators to truly replace…

Inevitable interferences exist for the SAR system, adversely affecting the imaging quality. However, current analysis and suppression methods mainly focus on the far-field situation. Due to different sources and characteristics of…

信号处理 · 电气工程与系统科学 2022-10-06 Xu Zhan , Xiaoling Zhang , Jun Shi , Shunjun Wei

Successive interference cancellation is used to detect discrete modulation symbols transmitted over a 1000 km fiber-optic link. A transmitter and receiver are presented that have linear complexity in the number of transmitted symbols and…

信息论 · 计算机科学 2024-05-07 Alex Jäger , Gerhard Kramer

As radio telescopes become sensitive, radio frequency interference (RFI) is more and more serious for interesting signals of radio astronomy. There exist demands for developing an automatic, accurate and efficient RFI mitigation method.…

天体物理仪器与方法 · 物理学 2023-12-27 Qingguo Zeng , Xue Chen , Xiangru Li , J. L. Han , Chen Wang , D. J. Zhou , Tao Wang

We present an experiment-based characterization of passive suppression and active self-interference cancellation mechanisms in full-duplex wireless communication systems. In particular, we consider passive suppression due to antenna…

信息论 · 计算机科学 2016-11-17 Melissa Duarte , Chris Dick , Ashutosh Sabharwal

Optical fibers have been recognized as one of the most promising host material for high phase coherence optical frequency transfer over thousands of kilometers. In the pioneering work, the active phase noise cancellation (ANC) technique has…

仪器与探测器 · 物理学 2021-06-25 Xiang Zhang , Liang Hu , Xue Deng , Qi Zang , Jie Liu , Dongjie Wang , Tao Liu , Ruifang Dong , Shougang Zhang

We present a filtering technique that can be applied to individual baselines of wide-bandwidth, wide-field interferometric data to geometrically select regions on the celestial sphere that contain primary calibration sources. The technique…

天体物理仪器与方法 · 物理学 2015-05-13 Aaron R. Parsons , Donald C. Backer

Radio Frequency Interference (RFI) is threatening modern radio astronomy. A classic approach to mitigate its impact on astronomical data involves discarding the corrupted time and frequency data samples through a process called flagging and…

信号处理 · 电气工程与系统科学 2020-07-28 Gregory Hellbourg , Ian Morrison

In this paper, the introduction of interference cancellation in full-duplex joint radar and communication receivers is analysed. More specifically, a focus is made on scenarios in which the receiver simultaneously receives radar echoes from…

信号处理 · 电气工程与系统科学 2024-10-02 François De Saint Moulin , Claude Oestges , Luc Vandendorpe

Reconfigurable intelligent surface (RIS)-empowered communication is an emerging technology that has recently received growing attention as a potential candidate for next-generation wireless communications. Although RISs have shown the…

信号处理 · 电气工程与系统科学 2023-06-02 Aymen Khaleel , Ertugrul Basar

Cross-correlation is an established tool to reduce the background in resistance noise measurements. However, the conventional method requires the amplifier, demodulator and digitizer channels to be duplicated, increasing the cost and…

仪器与探测器 · 物理学 2026-05-21 Tim Thyzel