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相关概念视频

Upsampling01:22

Upsampling

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Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
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Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
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Mesh Analysis for AC Circuits01:12

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In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
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An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
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相关实验视频

Updated: Jul 24, 2025

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
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在使用一位ADC的MIMO系统中提高了概率概率.

Tae-Kyoung Kim1

  • 1Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea.

Sensors (Basel, Switzerland)
|July 8, 2023
PubMed
概括
此摘要是机器生成的。

这项研究提高了使用一位模拟数字转换器 (ADC) 的多输入多输出 (MIMO) 系统的概率概率. 新方法通过改进概率概率估计来提高信号噪声比,提高系统性能.

关键词:
最大的可能性概率概率.多输入多输出的多输出系统.一位比特模拟数字转换器有权重的组合组合.

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科学领域:

  • 电气工程 电气工程
  • 信号处理 信号处理
  • 无线通信无线通信

背景情况:

  • 带有单位模拟数字转换器 (ADC) 的多输入多输出 (MIMO) 系统由于不准确的概率概率而遭受性能退化.
  • 准确的概率概率估计对于MIMO系统中可靠的信号检测至关重要.

研究的目的:

  • 开发一种改进的方法来估计一个位ADC MIMO系统中的概率概率.
  • 为了减轻不准确的概率估计造成的性能恶化.

主要方法:

  • 利用检测到的符号,通过将其与初始的概率概率相结合来估计真正的概率概率.
  • 制定一个优化问题,以最大限度地减少真和组合概率概率之间的平均平方误差.
  • 使用最小平方法推导一个解决方案.

主要成果:

  • 拟议的方法实现了约0.3dB的信号对噪声增益,误率为10-1.
  • 与传统方法相比,在一位ADC MIMO系统中表现出更好的性能.

结论:

  • 概率概率的增强可靠性是观察到的性能改善的关键.
  • 拟议的方法提供了一种可行的解决方案,用于提高MIMO系统性能,使用一位ADC.