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相关论文: Unleashing Dynamic Range and Resolution in Unlimit…

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Digital acquisition of high bandwidth signals is particularly challenging when Nyquist rate sampling is impractical. This has led to extensive research in sub-Nyquist sampling methods, primarily for spectral and sinusoidal frequency…

信息论 · 计算机科学 2024-09-26 Ruiming Guo , Yuliang Zhu , Ayush Bhandari

The Unlimited Sensing Framework (USF) is a digital acquisition protocol that allows for sampling and reconstruction of high dynamic range signals. By acquiring modulo samples, the USF circumvents the clipping or saturation problem that is a…

信息论 · 计算机科学 2022-07-28 Ayush Bhandari

The Unlimited Sensing Framework (USF) was recently introduced to overcome the sensor saturation bottleneck in conventional digital acquisition systems. At its core, the USF allows for high-dynamic-range (HDR) signal reconstruction by…

信息论 · 计算机科学 2022-02-16 Dorian Florescu , Felix Krahmer , Ayush Bhandari

Analog-to-digital converters (ADCs) provide the link between continuous-time signals and their discrete-time counterparts, and the Shannon-Nyquist sampling theorem provides the mathematical foundation. Real-world signals have a variable…

信号处理 · 电气工程与系统科学 2019-11-22 Adithya Krishna , Sunil Rudresh , Vishal Shaw , Hemanth Reddy Sabbella , Chandra Sekhar Seelamantula , Chetan Singh Thakur

Modulo sampling and dithered one-bit quantization frameworks have emerged as promising solutions to overcome the limitations of traditional analog-to-digital converters (ADCs) and sensors. Modulo sampling, with its high-resolution approach…

信号处理 · 电气工程与系统科学 2023-09-11 Arian Eamaz , Farhang Yeganegi , Mojtaba Soltanalian

Analog-to-digital converters (ADCs) play a critical role in digital signal acquisition across various applications, but their performance is inherently constrained by sampling rates and bit budgets. This bit budget imposes a trade-off…

信号处理 · 电气工程与系统科学 2025-09-10 Vaclav Pavlicek , Ayush Bhandari

Conventional analog-to-digital converters (ADCs) fail to capture high-dynamic-range (HDR) signals due to clipping. Modulo ADCs circumvent this limitation by folding the input prior to quantization and algorithmically reconstructing the…

信号处理 · 电气工程与系统科学 2025-12-01 Zeyuan Li , Wenyi Yan , Lu Gan , Guoquan Li , Hongqing Liu

In this paper, the trade-off between the quantization noise and the dynamic range of ADCs used to acquire radar signals is revisited using the Unlimited Sensing Framework (USF) in a practical setting. Trade-offs between saturation and…

信号处理 · 电气工程与系统科学 2023-07-03 Thomas Feuillen , Bhavani Shankar MRR , Ayush Bhandari

In high-dynamic range (HDR) analog-to-digital converters (ADCs), having many quantization bits minimizes quantization errors but results in high bit rates, limiting their application scope. A strategy combining modulo-folding with a low-DR…

信号处理 · 电气工程与系统科学 2023-11-23 Satish Mulleti , Resham Yashwanth Kumar , Laxmeesha Somappa

Shannon's sampling theorem is one of the cornerstone topics that is well understood and explored, both mathematically and algorithmically. That said, practical realization of this theorem still suffers from a severe bottleneck due to the…

信息论 · 计算机科学 2020-12-02 Ayush Bhandari , Felix Krahmer , Ramesh Raskar

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

The latest theoretical advances in the field of unlimited sampling framework (USF) show the potential to avoid clipping problems of analog-to-digital converters (ADC). To date, most of the related works have focused on real-valued modulo…

信号处理 · 电气工程与系统科学 2020-12-01 Yan He , Jifang Qiu , Chang Liu , Yue Liu , Jian Wu

The success of full-stack full-duplex communication systems depends on how effectively one can achieve digital self-interference cancellation (SIC). Towards this end, in this paper, we consider unlimited sensing framework (USF) enabled…

信号处理 · 电气工程与系统科学 2024-11-22 Ziang Liu , Ayush Bhandari , Bruno Clerckx

In the paper, we consider the line spectral estimation problem in an unlimited sensing framework (USF), where a modulo analog-to-digital converter (ADC) is employed to fold the input signal back into a bounded interval before quantization.…

信号处理 · 电气工程与系统科学 2024-08-14 Hongwei Wang , Jun Fang , Hongbin Li , Geert Leus

Conventional RGB-based high dynamic range (HDR) imaging faces a fundamental trade-off between motion artifacts in multi-exposure captures and irreversible information loss in single-shot techniques. Modulo sensors offer a promising…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Chu Zhou , Siqi Yang , Kailong Zhang , Heng Guo , Zhaofei Yu , Boxin Shi , Imari Sato

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

Key parameters of analog-to-digital converters (ADCs) are their sampling rate and dynamic range. Power consumption and cost of an ADC are directly proportional to the sampling rate; hence, it is desirable to keep it as low as possible. The…

信号处理 · 电气工程与系统科学 2023-01-31 Satish Mulleti , Eliya Reznitskiy , Shlomi Savariego , Moshe Namer , Nimrod Glazer , Yonina C. Eldar

High Dynamic Range (HDR) imaging is gaining increased attention due to its realistic content, for not only regular displays but also smartphones. Before sufficient HDR content is distributed, HDR visualization still relies mostly on…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Subhayan Mukherjee , Guan-Ming Su , Irene Cheng

High dynamic range (HDR) imaging is vital for capturing the full range of light tones in scenes, essential for computer vision tasks such as autonomous driving. Standard commercial imaging systems face limitations in capacity for well…

图像与视频处理 · 电气工程与系统科学 2025-04-08 Brayan Monroy , Kebin Contreras , Jorge Bacca

Analog to digital converters (ADCs) act as a bridge between the analog and digital domains. Two important attributes of any ADC are sampling rate and its dynamic range. For bandlimited signals, the sampling should be above the Nyquist rate.…

信号处理 · 电气工程与系统科学 2022-06-30 Eyar Azar , Satish Mulleti , Yonina C. Eldar
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