V2EX bang-bang detector

Bang-Bang Detector

释义 Definition

bang-bang detector(邦邦检测器/开关式检测器):在信号处理或控制系统中,用于判断某个量是否越过阈值、并将其输出为两种离散状态(如 0/1、开/关、正/负)的检测/判别模块;常见于“bang-bang(开关式、二值式)”控制、锁相环/时钟数据恢复(CDR)等场景。(不同领域实现细节会有所差异。)

发音 Pronunciation (IPA)

/b b dtktr/

例句 Examples

The receiver uses a bang-bang detector to convert the noisy signal into clean 0s and 1s.
接收机使用 bang-bang detector 将含噪信号转换为干净的 0 和 1。

In a clock recovery loop, a bang-bang detector makes a binary early/late decision, which simplifies hardware but can introduce jitter due to quantization.
在时钟恢复环路中,bang-bang detector 给出“提前/滞后”的二值判决,这能简化硬件,但也可能因量化而引入抖动。

词源 Etymology

bang-bang 原本用来形容一种“不是连续调节、而是在两个极端之间切换”的方式(类似开关反复“啪啪”地切换),在控制理论里常指 on-off(开/关)two-level(二值 的控制/判决;detector 则是“检测器/检波器”。合起来就是“输出呈二值切换特性的检测器”。

相关词 Related Words

文学与著作 Notable Works

  • Modern Control Engineering(Katsuhiko Ogata)
  • Feedback Control of Dynamic Systems(Franklin, Powell, Emami-Naeini)
  • Automatic Control Systems(Kuo;或 Kuo & Golnaraghi 的版本)
  • Nonlinear Systems(Hassan K. Khalil)(涉及二值/开关型非线性与相关分析语境)
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