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相关概念视频

Drug Concentration Versus Time Correlation01:15

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The plasma drug concentration-time curve is a crucial tool in pharmacokinetics, representing the drug's concentration in plasma at different time intervals post-administration. This curve illustrates the drug's journey from absorption into the systemic circulation, distribution to body tissues, and eventual elimination through excretion or biotransformation.
Two pivotal parameters are the minimum effective concentration (MEC) and the minimum toxic concentration (MTC). The MEC is the...
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Mass Analyzers: Common Types01:19

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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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2D NMR: Overview of Homonuclear Correlation Techniques01:16

2D NMR: Overview of Homonuclear Correlation Techniques

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Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
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Double Resonance Techniques: Overview01:12

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Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
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Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
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The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
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对相关联辅助直飞时间的噪声分析.

Ayman Morsy1, Jonathan Vrijsen1, Jan Coosemans1

  • 1Department of Electronics and Informatics, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.

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概括
此摘要是机器生成的。

一个新的关联辅助直接飞行时间 (CA-dToF) 像素为飞行时间应用提供低功耗和噪声抑制. 本研究分析了其性能局限性,并提出了提高可靠性和实施的解决方案.

关键词:
深度感应 感应深度感应光探测和距离测定 (LiDAR) 系统像素噪声分析分析一个光子雪崩二极管 (SPAD)飞行时间 (ToF)

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科学领域:

  • 光子学和传感器技术技术
  • 集成电路设计 集成电路设计

背景情况:

  • 直接飞行时间 (dToF) 传感器对于需要精确距离测量的应用至关重要.
  • 现有的dToF像素面临电力消耗,环境光噪声和系统错误的挑战.
  • 相关联辅助直接飞行时间 (CA-dToF) 像素提供了一个有希望的替代方案,具有增强的功能.

研究的目的:

  • 为了研究CA-dToF像素对各种噪声源的稳定性.
  • 识别和分析性能限制,包括SPAD截止时间和组件不匹配.
  • 提出方法来提高CA-dToF像素的可靠性和实施.

主要方法:

  • 对CA-dToF像素架构的系统错误分析.
  • 对噪声影响的调查:定时动,kTC噪声,切换噪声和光子射击噪声.
  • 限制的评估:SPAD截止时间,源追随者增益不匹配,和偏移.

主要成果:

  • CA-dToF像素在低功耗和环境射击噪声抑制方面表现出有效性.
  • 确定了关键的系统错误及其对dToF测量准确性的影响.
  • 量化了定时动,kTC噪声,切换噪声和光子射击噪声的影响.

结论:

  • CA-dToF像素为先进的飞行时间应用提供了一个可行的解决方案.
  • 了解和减轻发现的系统错误对于最佳性能至关重要.
  • 建议的解决方案可以显著提高CA-dToF像素的可靠性和实际实施.