V2EX signal line

Signal Line

Definition / 释义

signal line(信号线):常指技术分析指标中的一条辅助线,通常是对某个指标(如 MACD 线)的平滑移动平均线,用来与主线比较并产生买卖“信号”(如“金叉/死叉”)。
(在电子/工程语境中也可指“传递控制/信号的线路”,但金融技术分析用法更常见。)

Pronunciation / 发音(IPA)

/snl lan/

Examples / 例句

The signal line helps confirm trend changes.
信号线有助于确认趋势变化。

When the MACD crosses above the signal line, some traders treat it as a bullish signal, though false signals can occur in choppy markets.
当 MACD 向上穿越信号线时,一些交易者将其视为看涨信号,不过在震荡行情中也可能出现假信号。

Etymology / 词源

signal 来自拉丁语 signum(“标记、符号”),引申为“信号、提示”;line 源自拉丁语 linea(“线、线条”)。组合成 signal line 字面即“用于给出信号的线”,在技术分析中进一步固定为“用于触发/确认交易信号的那条线”。

Related Words / 相关词

Notable Works / 文学与著作中的用例

  • Technical Analysis of the Financial Markets(John J. Murphy)在讲解 MACD 等指标时使用并解释 signal line
  • New Trading Systems and Methods(Perry J. Kaufman)讨论动量/均线类指标及其“信号线”用法。
  • The MACD Book(William Blau)围绕 MACD 结构(含 signal line)展开说明与应用。
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