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相关论文: Improved Calibration of Instruments for Small Dire…

200 篇论文

The accurate calibration of photomultiplier tubes is critical in a wide variety of applications for which it is necessary to know the absolute number of detected photons or precisely determine the resolution of the signal. Conventional…

仪器与探测器 · 物理学 2017-06-20 R. Saldanha , L. Grandi , Y. Guardincerri , T. Wester

In the past few years, advancements in the field of nano circuit design has become tougher than the demand. Low power devices have emerged tremendously.Both voltage mode aswell as current mode devices have proven alternative to each other…

信号处理 · 电气工程与系统科学 2018-11-07 Umar Mohammad , Mir Aamir Shafi

This article presents an interactive system for stage acoustics experimentation including considerations for hearing one's own and others' instruments. The quality of real-time auralization systems for psychophysical experiments on music…

音频与语音处理 · 电气工程与系统科学 2026-03-30 Ernesto Accolti , Lukas Aspöck , Manuj Yadav , Michael Vorländer

In this lecture, we describe a number of advanced gain calibration techniques. In particular, self-calibration is an important tool in interferometric imaging at all wavelengths. It allows the observer to determine and remove residual phase…

天体物理仪器与方法 · 物理学 2018-05-15 Crystal L. Brogan , Todd R. Hunter , Ed B. Fomalont

A well-characterised sample of silicon tunable-barrier electron pump has been operated at a frequency of 2 GHz using a custom drive waveform, generating a pump current of 320 pA. Precision measurements of the current were made as a function…

介观与纳米尺度物理 · 物理学 2023-08-02 Stephen Giblin , Gento Yamahata , Akira Fujiwara , Masaya Kataoka

A low cost, stable, programmable, unipolar current source is described. The circuit is designed in view of a modular arrangement, suitable for applications where several DC sources must be controlled at once. A hybrid switching/linear…

Recently, Adaptive Secondary Mirrors showed excellent on-sky results in the Near Infrared wavelengths. They currently provide 30mm inter-actuator spacing and about 1 kHz bandwidth. Pushing these devices to be operated at visible wavelengths…

We make two contributions to the problem of estimating the $L_1$ calibration error of a binary classifier from a finite dataset. First, we provide an upper bound for any classifier where the calibration function has bounded variation.…

This paper presents the analytical design of a new wide tuning range and low-noise millimeter-wave voltage control oscillators (VCO) for 5G technology. The small signal model analysis and phase noise of the VCOs will be presented to…

信号处理 · 电气工程与系统科学 2025-11-13 Minh Xuan Bui , Nguyen Thien Dat , Van Hong Lam , Tran Le Anh Quan , Pham Hung Anh , Mai Dong Xuan , Ke Wang

Accurate extrinsic calibration of multiple LiDARs is crucial for improving the foundational performance of three-dimensional (3D) map reconstruction systems. This paper presents a novel targetless extrinsic calibration framework for…

机器人学 · 计算机科学 2025-07-15 Han Ye , Yuqiang Jin , Jinyuan Liu , Tao Li , Wen-An Zhang , Minglei Fu

The high frequency primary power standard is univocally realized by means of a coaxial microcalorimeter, at least up to 40 GHz. The coaxial microcalorimeter is a broadband measurement system adjusted for effec-tive efficiency measurement of…

仪器与探测器 · 物理学 2021-03-09 Luciano Brunetti , Luca Oberto , Marco Sellone

We present a candidate sensor for future spectroscopic applications, such as a Stage-5 Spectroscopic Survey Experiment or the Habitable Worlds Observatory. This type of charge-coupled device (CCD) sensor features multiple in-line amplifiers…

The data from ground based gravitational-wave detectors such as Advanced LIGO and Virgo must be calibrated to convert the digital output of photodetectors into a relative displacement of the test masses in the detectors, producing the…

广义相对论与量子宇宙学 · 物理学 2021-03-24 Salvatore Vitale , Carl-Johan Haster , Ling Sun , Ben Farr , Evan Goetz , Jeff Kissel , Craig Cahillane

Absolute calibration of the Pierre Auger Observatory fluorescence detectors uses a 375 nm light source at the telescope aperture. This end-to-end technique accounts for the combined effects of all detector components in a single…

In this paper, robust detection, tracking and geometry estimation methods are developed and combined into a system for estimating time-difference estimates, microphone localization and sound source movement. No assumptions on the 3D…

Flow cytometry measurements are widely used in diagnostics and medical decision making. Incomplete understanding of sources of measurement uncertainty can make it difficult to distinguish autofluorescence and background sources from signals…

We measure the rectified dc currents resulting when a 3-terminal semiconductor device with gate-dependent conductance is driven with an ac gate voltage. The rectified currents exhibit surprisingly complex behaviour as the dc source-drain…

介观与纳米尺度物理 · 物理学 2018-09-28 S. P. Giblin , M. Kataoka , J. D. Fletcher , P. See , T. J. B. M. Janssen , J. P. Griffiths , G. A. C. Jones , I. Farrer , D. A. Ritchie

We present LUCAS (Low power Ultra-low jitter Compact ASIC for SiPM), an analog front-end for Silicon Photomultipliers (SiPM) targeting fast timing detectors in Time-of-Flight Computed Tomography (ToF-CT). LUCAS features a very low input…

仪器与探测器 · 物理学 2025-01-15 Seyed Arash Katourani

We study post-calibration uncertainty for trained ensembles of classifiers. Specifically, we consider both aleatoric (label noise) and epistemic (model) uncertainty. Among the most popular and widely used calibration methods in…

In this paper, we address the calibration of the quantum efficiency of single-photon cameras using radioluminescent light sources. The proposed methods are subsequently compared with absolute calibration techniques based on the detection of…

量子物理 · 物理学 2025-11-20 Radek Machulka , Václav Michálek , Ondřej Haderka , Jan Peřina