FTB-C000338 / Formula component

Instantaneous Phase

Instantaneous Phase is an estimated angular position derived from signal-processing components at a given observation.

Also known ascycle phase

Advanced 1 linked topicPublished

Definitions

In plain terms

MAMA uses changes in estimated phase to vary its smoothing rate.

Technical

The phase convention, units, quadrant handling, unwrapping, clamps, delays, invalid states, and warm-up must be frozen.

Scope

Phase estimates can be unstable during warm-up or weak cyclic structure.

Examples

  • A governed lesson uses Instantaneous Phase only with declared inputs, timing, parameters, and edge-case behavior.

Common misconceptions

  • Phase estimates can be unstable during warm-up or weak cyclic structure.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D07-F01-A09 Important

Evidence and governance

  1. MESA Adaptive Moving Averages John F. Ehlers / Technical Analysis of Stocks and Commodities · first party methodology

    Supports: preferred label, short definition, technical definition

    Limits: The abstract alone is insufficient for code parity; exact coefficients, state, clamps, and warm-up require a pinned implementation contract.

Reviewed by
fintech-builder-batch-006
Last reviewed
2026-07-27
Next review
2027-07-27
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.