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Low resolution analog-to-digital converters (ADCs) can be employed to improve the energy efficiency (EE) of a wireless receiver since the power consumption of each ADC is exponentially related to its sampling resolution and the hardware…

信号处理 · 电气工程与系统科学 2020-03-11 Aryan Kaushik , Christos Tsinos , Evangelos Vlachos , John Thompson

The current battery-powered fault detection system for vibration monitoring has a rather limited lifetime. This is because the high-frequency sampling (typically tens of kilo-Hertz) required for vibration monitoring results in high energy…

信号处理 · 电气工程与系统科学 2024-02-29 Dongti Zhang , Patricio Peralta-Braz , Chun Tung Chou , Elena Atroshchenko , Mehrisadat Makki Alamdari , Mahbub Hassan

Recovering signals within limited dynamic range (DR) constraints remains a central challenge for analog-to-digital converters (ADCs). To prevent data loss, an ADCs DR typically must exceed that of the input signal. Modulo sampling has…

信号处理 · 电气工程与系统科学 2025-01-22 Yhonatan Kvich , Shlomi Savariego , Moshe Namer , Yonina C. Eldar

Affine Frequency Division Multiplexing (AFDM) has been proposed as an effective waveform for achieving the full diversity of doubly-dispersive (delay-Doppler) channels. While this property is closely related to range and velocity estimation…

信息论 · 计算机科学 2025-11-07 Ali Bemani , Nassar Ksairi , Marios Kountouris

As technology grows, higher frequency signals are required to be processed in various applications. In order to digitize such signals, conventional analog to digital convertors are facing implementation challenges due to the higher sampling…

信息论 · 计算机科学 2014-11-27 Amir Zandieh , Alireza Zareian , Masoumeh Azghani , Farokh Marvasti

In this study, a novel type of Fourier transform radio spectrometer (termed as all-digital radio spectrometer; ADRS) has been developed in which all functionalities comprising a radio spectrometer including a sampler and Fourier computing…

A digital finite impulse response (FIR) filter design is fully synthesizable, thanks to the mature CAD support of digital circuitry. On the contrary, analog mixed-signal (AMS) filter design is mostly a manual process, including architecture…

系统与控制 · 电气工程与系统科学 2021-12-16 Shiyu Su , Qiaochu Zhang , Juzheng Liu , Mohsen Hassanpourghadi , Rezwan Rasul , Mike Shuo-Wei Chen

Comparators are utilised by Nyquist-rate and oversampling analog to digital converters (ADCs) to accomplish quantization and perhaps sampling. Thus, comparators have a substantial effect on the speed and accuracy of ADCs. This study…

仪器与探测器 · 物理学 2022-10-26 Sounak Dutta

An observer based adaptive detection methodology (ADM) is proposed for estimating frequency and its rate of change (RoCoF) of the voltage and/or current measurements acquired from an instrument transformer. With guaranteed convergence and…

系统与控制 · 电气工程与系统科学 2021-05-04 Abdul Saleem Mir , Abhinav Kumar Singh , Nilanjan Senroy

In recent years, Compute-in-memory (CiM) architectures have emerged as a promising solution for deep neural network (NN) accelerators. Multiply-accumulate~(MAC) is considered a {\textit de facto} unit operation in NNs. By leveraging the…

信号处理 · 电气工程与系统科学 2026-01-05 Dhandeep Challagundla , Ignatius Bezzam , Riadul Islam

Analog-to-digital converters (ADCs) play a vital important role in any devices via manipulating analog signals in a digital manner. Given that the amplitude of the signal exceeds the dynamic range of the ADCs, clipping occurs and the…

信号处理 · 电气工程与系统科学 2024-10-28 Jiang Zhu , Junnan Ma , Zhenlong Liu , Fengzhong Qu , Zheng Zhu , Qi Zhang

This paper presents a dynamic predictive sampling (DPS) based analog-to-digital converter (ADC) that provides a non-uniform sampling of input analog continuous-time signals. The processing unit generates a dynamic prediction of the input…

信号处理 · 电气工程与系统科学 2022-11-21 Xiaochen Tang , Mario Renteria-Pinon , Wei Tang

In this paper, an on-chip photonic sampled and quantized analog-to-digital converter (ADC) on thin-film lithium niobate platform is experimentally demonstrated. Using two phase modulators as a sampler and a 5$\times$5 multimode interference…

光学 · 物理学 2023-01-18 Donghe Tu , Xingrui Huang , Yang Liu , Zhiguo Yu , Zhiyong Li

The RFX-mod2 Nuclear Fusion experiment is an upgrade of RFX-mod, shutdown in 2016. Among the other improvements in the machine structure and diagnostics, a larger number of electromagnetic probes (EMs) is foreseen to provide more…

Dynamic comparators are an essential part of low-power analog to digital converters (ADCs) and are referred to as one of the most important building blocks in mixed mode circuits. The power consumption and accuracy of dynamic comparators…

信号处理 · 电气工程与系统科学 2021-10-07 Nima Shahpari , Mehdi Habibi , Piero Malcovati

This paper considers an affine frequency division multiplexing (AFDM)-based integrated sensing and communications (ISAC) system, where the AFDM waveform is used to simultaneously carry communications information and sense targets. To…

信号处理 · 电气工程与系统科学 2022-08-30 Yuanhan Ni , Zulin Wang , Peng Yuan , Qin Huang

The recovery of bandlimited signals with high dynamic range is a hot issue in sampling research. The unlimited sampling theory expands the recordable range of traditional analog-to-digital converters (ADCs) arbitrarily, and the signal is…

信号处理 · 电气工程与系统科学 2023-02-20 Hui Zhao , Bing-Zhao Li

Integrate-and-fire is a resource efficient time-encoding mechanism that summarizes into a signed spike train those time intervals where a signal's charge exceeds a certain threshold. We analyze the IF encoder in terms of a very general…

泛函分析 · 数学 2026-01-15 Diana Carbajal , José Luis Romero

Integrated sensing and communications (ISAC) is regarded as a key technology in next-generation (6G) mobile communication systems. Affine frequency division multiplexing (AFDM) is a recently proposed waveform that achieves optimal diversity…

信息论 · 计算机科学 2024-02-27 Ali Bemani , Nassar Ksairi , Marios Kountouris

Obtaining digital representations of multivariate continuous-time (CT) signals is a challenge encountered in many signal processing systems. In practice, these signals are often acquired to extract some underlying information, i.e., for a…

信息论 · 计算机科学 2021-10-18 Peter Neuhaus , Nir Shlezinger , Meik Dörpinghaus , Yonina C. Eldar , Gerhard Fettweis