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Time-resolved atom interferometry, as employed in applications such as gravitational wave detection and searches for ultra-light dark matter, requires precise control over systematic effects. In this work, we investigate phase noise arising…

Atomic Physics · Physics 2025-11-25 Noam Mouelle , Jeremiah Mitchell , Valerie Gibson , Ulrich Schneider

Federated Learning (FL) is a distributed machine learning technique that preserves data privacy by sharing only the trained parameters instead of the client data. This makes FL ideal for highly dynamic, heterogeneous, and time-critical…

Machine Learning · Computer Science 2025-10-30 Kasun Eranda Wijethilake , Adnan Mahmood , Quan Z. Sheng

Conventional frequency-domain full-waveform inversion (FWI) is typically implemented with an $L^2$ misfit function, which suffers from challenges such as cycle skipping and sensitivity to noise. While the Wasserstein metric has proven…

Optimization and Control · Mathematics 2025-10-10 Zhijun Zeng , Matej Neumann , Yunan Yang

A speed-sensorless state feedback controller for induction machines (IMs) with LC filter is proposed. The estimation of speed and remaining states is based on a speed-adaptive observer, requiring only the measurement of the filter input…

Systems and Control · Computer Science 2018-08-01 Julian Kullick , Christoph M. Hackl

In modern power systems, shiftable loads contribute to the flexibility needed to increase robustness and ensure security. Thermal loads are among the most promising candidates for providing such service due to the large thermal storage time…

Systems and Control · Electrical Eng. & Systems 2021-01-01 Johanna Vorwerk , Uros Markovic , Petros Aristidou , Evangelos Vrettos , Gabriela Hug

Machine learning (ML) has shown great promise in optimizing various aspects of the physical layer processing in wireless communication systems. In this paper, we use ML to learn jointly the transmit waveform and the frequency-domain…

Signal Processing · Electrical Eng. & Systems 2022-01-17 Dani Korpi , Mikko Honkala , Janne M. J. Huttunen , Fayçal Ait Aoudia , Jakob Hoydis

In this proposal, we design a learned multi-frequency image compression approach that uses generalized octave convolutions to factorize the latent representations into high-frequency (HF) and low-frequency (LF) components, and the LF…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Jianping Lin , Mohammad Akbari , Haisheng Fu , Qian Zhang , Shang Wang , Jie Liang , Dong Liu , Feng Liang , Guohe Zhang , Chengjie Tu

There is no doubt that we need to keep our eyes on the sky as satellite networks aim to address the demands of 6G and beyond communications systems. On the other hand, the existence of millions of space debris pieces, large or small, poses…

Signal Processing · Electrical Eng. & Systems 2023-06-16 Gizem Sümen , Güneş Karabulut Kurt , Ali Görçin

The family of multi-plane phase retrieval sensors, such as the curvature and nonlinear curvature wavefront sensors (WFS), contain tip/tilt information embedded in their signals. We have built a nonlinear curvature WFS to study different…

Instrumentation and Methods for Astrophysics · Physics 2026-03-12 Caleb G. Abbott , Justin R. Crepp , Brian Sands

Transformer-based models, despite their promise for long-term time series forecasting (LTSF), suffer from an inherent low-pass filtering effect that limits their effectiveness. This issue arises due to undifferentiated propagation of…

Machine Learning · Computer Science 2026-01-23 Jingjing Bai , Yoshinobu Kawahara

Ultra-wideband (UWB) is a state-of-the-art technology designed for applications requiring centimeter-level localization. Its widespread adoption by smartphone manufacturer naturally raises security and privacy concerns. Successfully…

Machine Learning · Computer Science 2025-01-09 Thibaud Ardoin , Niklas Pauli , Benedikt Groß , Mahsa Kholghi , Khan Reaz , Gerhard Wunder

The uplink of 5G networks allows selecting the transmit waveform between cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and discrete Fourier transform spread OFDM (DFT-S-OFDM), which is appealing for cell-edge users…

This paper proposes a novel low probability of intercept (LPI) waveform design approach for orthogonal frequency-division multiplexing (OFDM)-based integrated sensing and communication systems by introducing artificial phase and Doppler…

Signal Processing · Electrical Eng. & Systems 2026-03-02 Umut Utku Erdem , Lucas Giroto , Tobias Chaloun , Tom Schipper , Taewon Jeong , Christian Karle , Benjamin Nuss , Thomas Zwick

The phase synchronization of two semiconductor DFB lasers submitted to both frequency-shifted cross-injection and self-feedback is investigated, both numerically and experimentally. A dedicated setup based on monolithic DFB lasers permits…

Optics · Physics 2019-03-27 Aurélien Thorette , Marco Romanelli , Marc Vallet

We adjust the transient dynamics of a piezo-actuated bimorph Atomic Force Microscopy (AFM) probe using a state feedback controller. This approach enables us to adjust the quality factor and the resonance frequency of the probe…

Atomic Physics · Physics 2012-04-16 Bilal Orun , Serkan Necipoglu , Cagatay Basdogan , Levent Guvenc

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…

Signal Processing · Electrical Eng. & Systems 2023-01-02 Abhilash Gaur , Po-Hsuan Tseng , Kai-Ten Feng , Seshan Srirangarajan

This letter proposes a new design of frequency-locked loop (FLL) which is based on synchronous (dq) reference frame instead of stationary ({\alpha}\b{eta}) reference frame. First, a synchronous reference frame FLL (briefly called SRF-FLL0)…

Systems and Control · Electrical Eng. & Systems 2019-09-27 Xiangjun Quan , Qinran Hu , Alex Q. Huang , Xiaobo Dou , Zaijun Wu

Modern high-energy particle accelerators and Free-Electron Lasers incorporate large quantities of sensitive RF and microwave frequency devices distributed over kilometer distances. Such devices require extreme stable phase and time…

Instrumentation and Detectors · Physics 2018-06-26 Dominik Sikora , Krzysztof Czuba , Pawel Jatczak , Maciej Urbanski , Holger Schlarb , Frank Ludwig , Heinrich Pryschelski

This paper presents a novel RF circuit architecture for self-interference cancellation in inband full-duplex radio transceivers. The developed canceller is able to provide wideband cancellation with waveform bandwidths in the order of 100…

Information Theory · Computer Science 2016-11-17 Timo Huusari , Yang-Seok Choi , Petteri Liikkanen , Dani Korpi , Shilpa Talwar , Mikko Valkama

Learned image compression has exhibited promising compression performance, but variable bitrates over a wide range remain a challenge. State-of-the-art variable rate methods compromise the loss of model performance and require numerous…

Image and Video Processing · Electrical Eng. & Systems 2023-03-13 Kedeng Tong , Yaojun Wu , Yue Li , Kai Zhang , Li Zhang , Xin Jin