Difference between revisions of "Numerical Analysis of Interference Patterns"
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== Artificial Neural Network Method == | == Artificial Neural Network Method == | ||
| + | * requires carrier phase | ||
| + | * non-algorithmic (i.e. must have learning phase) | ||
| + | * types of learning include: supervised, unsupervised and reinforcement | ||
| + | * multi-layer: input, output, hidden neurons present | ||
== Genetic Algorithm == | == Genetic Algorithm == | ||
Revision as of 15:10, 19 September 2007
This page is currently a work in progress.
Phase Shifting Technique
- requires three phase shifted fringe patterns
- the phase shift must be known
- carefully controlled conditions must be maintained
Fourier Analysis Method
- requires carrier frequency, narrow frequency, low noise and open fringes
- estimates the phase wrapped (via arctan)
Phase-Locked Loop Algorithm
- computer simulated oscillator (VCO) needed
- phase error b/w the fringe pattern and the VCO vanishes
Artificial Neural Network Method
- requires carrier phase
- non-algorithmic (i.e. must have learning phase)
- types of learning include: supervised, unsupervised and reinforcement
- multi-layer: input, output, hidden neurons present