Hilbert Transform SineWave (HT SINE)
The Adaptive Cycle Oscillator That Tunes Itself to Market Rhythm
John Ehlers' Hilbert Transform SineWave (HT SINE) is an adaptive oscillator that dynamically adjusts to the market's current cycle length instead of using a fixed period. Unlike traditional oscillators like RSI or Stochastic that assume a constant timeframe, HT SINE measures the dominant cycle period in real-time and generates sine and cosine waves that perfectly match the market's rhythm. The result? An oscillator that leads price turns in trending markets and provides clean overbought/oversold signals in ranging markets – all while automatically adapting as cycle lengths change.
The Adaptive Advantage
Traditional oscillators use fixed periods (e.g., RSI(14), Stochastic(14)), assuming the market's cycle length stays constant. HT SINE breaks this limitation by:
- Measuring the current dominant cycle period using Hilbert Transform
- Generating sine and cosine waves that match this period exactly
- Automatically adjusting as the cycle length changes
This makes HT SINE responsive in fast markets and smooth in slow markets – without manual period adjustments.
How It Works
HT SINE generates two waves:
- Sine Wave: The primary oscillator that leads price by approximately 90 degrees
- Lead Sine Wave: Advanced version that leads price by even more, providing earlier signals
When the Sine Wave crosses above the Lead Sine Wave, it signals a potential upward move. When it crosses below, it signals a potential downward move.
Trading Applications
- Cycle identification: Sine wave peaks and troughs mark cycle tops and bottoms
- Entry signals: Crossovers between Sine and Lead Sine provide entry timing
- Trend confirmation: Sine wave direction confirms trend strength
- Adaptive overbought/oversold: Levels adjust automatically to current cycle length
Advantages Over Fixed Oscillators
- No lag in trending markets: Adapts to cycle length changes immediately
- Reduced whipsaws: Better filtering in choppy conditions
- Leading signals: Sine wave leads price turns by design
- Works across timeframes: Same logic applies from minutes to months
Key Takeaways
HT SINE is an adaptive oscillator that dynamically adjusts to the market's current cycle length.
It generates sine and cosine waves that perfectly match the market's rhythm in real-time.
The crossover between Sine and Lead Sine waves provides entry and exit signals.
Unlike fixed-period oscillators, HT SINE adapts automatically as market conditions change.
It's particularly powerful in trending markets where cycle lengths are more stable.
Hilbert Transform SineWave (HT SINE)
The Adaptive Cycle Oscillator That Tunes Itself to Market Rhythm
John Ehlers' Hilbert Transform SineWave (HT SINE) is an adaptive oscillator that dynamically adjusts to the market's current cycle length instead of using a fixed period. Unlike traditional oscillators like RSI or Stochastic that assume a constant timeframe, HT SINE measures the dominant cycle period in real-time and generates sine and cosine waves that perfectly match the market's rhythm. The result? An oscillator that leads price turns in trending markets and provides clean overbought/oversold signals in ranging markets – all while automatically adapting as cycle lengths change.
Table of Contents
The Adaptive Advantage
Traditional oscillators use fixed periods (e.g., RSI(14), Stochastic(14)), assuming the market's cycle length stays constant. HT SINE breaks this limitation by:
- Measuring the current dominant cycle period using Hilbert Transform
- Generating sine and cosine waves that match this period exactly
- Automatically adjusting as the cycle length changes
This makes HT SINE responsive in fast markets and smooth in slow markets – without manual period adjustments.
How It Works
HT SINE generates two waves:
- Sine Wave: The primary oscillator that leads price by approximately 90 degrees
- Lead Sine Wave: Advanced version that leads price by even more, providing earlier signals
When the Sine Wave crosses above the Lead Sine Wave, it signals a potential upward move. When it crosses below, it signals a potential downward move.
Trading Applications
- Cycle identification: Sine wave peaks and troughs mark cycle tops and bottoms
- Entry signals: Crossovers between Sine and Lead Sine provide entry timing
- Trend confirmation: Sine wave direction confirms trend strength
- Adaptive overbought/oversold: Levels adjust automatically to current cycle length
Advantages Over Fixed Oscillators
- No lag in trending markets: Adapts to cycle length changes immediately
- Reduced whipsaws: Better filtering in choppy conditions
- Leading signals: Sine wave leads price turns by design
- Works across timeframes: Same logic applies from minutes to months
Key Takeaways
HT SINE is an adaptive oscillator that dynamically adjusts to the market's current cycle length.
It generates sine and cosine waves that perfectly match the market's rhythm in real-time.
The crossover between Sine and Lead Sine waves provides entry and exit signals.
Unlike fixed-period oscillators, HT SINE adapts automatically as market conditions change.
It's particularly powerful in trending markets where cycle lengths are more stable.
Related Terms
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