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We investigate characteristics of radio frequency interference (RFI) signals that can affect the excision potential of some interference mitigation algorithms. The techniques considered are those that modify signals from auxiliary reference…

天体物理仪器与方法 · 物理学 2010-04-01 D. A. Mitchell , J. G. Robertson

One of the challenges in spaceborne synthetic aperture radar (SAR) is modeling and mitigating radio frequency interference (RFI) artifacts in SAR imagery. Linear frequency modulated (LFM) signals have been commonly used for characterizing…

图像与视频处理 · 电气工程与系统科学 2025-09-24 Dehui Yang , Feng Xi , Qihao Cao , Huizhang Yang

With increasing application of frequency-modulated continuous wave (FMCW) radars in autonomous vehicles, mutual interference among FMCW radars poses a serious threat. Through this paper, we present a novel approach to effectively and…

信号处理 · 电气工程与系统科学 2023-01-02 Abhilash Gaur , Po-Hsuan Tseng , Kai-Ten Feng , Seshan Srirangarajan

The growing level of radio frequency interference (RFI) is a recognized problem for research in radio astronomy. This paper describes an intuitive but powerful RFI cancellation technique that is suitable for radio spectroscopy where…

天体物理学 · 物理学 2009-10-31 F. H. Briggs , J. F. Bell , M. J. Kesteven

Radio frequency interference (RFI) is a significant problem for current and future radio telescopes. We describe here a method for post-correlation cancellation of RFI for the special case of an extended source observed with an…

天体物理学 · 物理学 2015-06-24 Geoffrey C. Bower

In this paper, the digital self-interference (SI) cancellation in a single radio frequency (RF) chain massive multi-input multi-output (MIMO) full-duplex (FD) orthogonal frequency division multiplexing (OFDM) system with phase noise is…

信息论 · 计算机科学 2023-08-11 Meng He , Chuan Huang

In this paper we study the reception zones of a wireless network in the SINR model with receivers that employ \emph{interference cancellation} (IC), a technique that allows a receiver to decode interfering signals, and \emph{cancel} them…

计算几何 · 计算机科学 2013-09-13 Chen Avin , Asaf Cohen , Yoram Haddad , Erez Kantor , Zvi Lotker , Merav Parter , David Peleg

AI-enhanced interference rejection in radio frequency (RF) transmissions has recently attracted interest because deep learning approaches trained on both the signal of interest (SOI) and the signal mixture (SOI plus interference) can…

信号处理 · 电气工程与系统科学 2026-05-04 Rahul Jain , Pierre Trepagnier , Rick Gentile , Joey Botero , Alexia Schulz

In orthogonal frequency-division multiplexing-based radar and integrated sensing and communication systems, the sensing range is traditionally limited by the round-trip time corresponding to the cyclic prefix duration. Targets whose echoes…

The growing need for electromagnetic spectrum to support the next generation (xG) communication networks increasingly generate unwanted radio frequency interference (RFI) in protected bands for radio astronomy. RFI is commonly mitigated at…

信号处理 · 电气工程与系统科学 2022-11-01 Shuvam Chakraborty , Gregory Hellbourg , Maqsood Careem , Dola Saha , Aveek Dutta

We present a novel neural network (NN) method for the detection and removal of Radio Frequency Interference (RFI) from the raw digitized signal in the signal processing chain of a typical radio astronomy experiment. The main advantage of…

天体物理仪器与方法 · 物理学 2022-11-30 Benjamin R. B. Saliwanchik , Anže Slosar

A photonics-assisted analog wideband RF self-interference (SI) cancellation and frequency downconversion approach for in-band full-duplex (IBFD) multiple-input multiple-output (MIMO) systems with adaptive digital amplitude and delay…

信号处理 · 电气工程与系统科学 2023-04-12 Taixia Shi , Yang Chen

With the installation of next-generation phased array feed (PAF) receivers on radio telescopes, there is an urgent need to develop effective and computationally efficient radio frequency interference (RFI) mitigation methods for large-scale…

Most existing approaches to co-existing communication/radar systems assume that the radar and communication systems are coordinated, i.e., they share information, such as relative position, transmitted waveforms and channel state. In this…

系统与控制 · 计算机科学 2018-03-14 Le Zheng , Marco Lops , Xiaodong Wang

Full-duplex (FD) is an attractive technology that can significantly boost the throughput of wireless communications. However, it is limited by the severe self-interference (SI) from the transmitter to the local receiver. In this paper, we…

信号处理 · 电气工程与系统科学 2024-07-18 Jiayan Wu , Wenchi Cheng , Jianyu Wang , Jingqing Wang , Wei Zhang

Joint detection and decoding (JDD) achieves rates based on information theory but is too complex to implement for many channels with memory or nonlinearities. Successive interference cancellation (SIC) at the receiver, combined with…

信息论 · 计算机科学 2025-01-15 Alex Jäger , Gerhard Kramer

For future wireless communication systems, full duplex is seen as a possible solution to the ever present spectrum shortage. The key aspect to enable In-Band Full Duplex (IBFD) is sufficient cancellation of the unavoidable Self-Interference…

信号处理 · 电气工程与系统科学 2017-11-21 Mustafa Emara , Patrick Rosson , Kilian Roth , David Dassonville

Several post-detection approaches to the mitigation of radio-frequency interference (RFI) are compared by applying them to the strong RFI from the Iridium satellites. These provide estimates for the desired signal in the presence of RFI, by…

天体物理仪器与方法 · 物理学 2019-04-02 Avinash A. Deshpande , B. M. Lewis

This paper introduces a method to reduce interference in OFDM radar systems through the use of reconfigurable intelligent surfaces (RIS). The method involves adjusting the RIS elements to diminish interference effects and improve the…

信号处理 · 电气工程与系统科学 2025-02-21 Ali Parchekani , Milad Johnny , Shahrokh Valaee

The maximum information rates for bandlimited channels with direct detection are achieved with joint detection and decoding (JDD), but JDD is often too complex to implement. Two receiver structures are studied to reduce complexity: separate…

信息论 · 计算机科学 2023-12-20 Tobias Prinz , Daniel Plabst , Thomas Wiegart , Stefano Calabrò , Norbert Hanik , Gerhard Kramer
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