Calculating Time Delay t and Embedding Dimension m

Resource Overview

This program calculates both time delay t and embedding dimension m simultaneously, offering a more efficient alternative to conventional autocorrelation function and GP methods. The algorithm is particularly useful for Lyapunov exponent computation where both parameters need to be determined beforehand. The implementation involves phase space reconstruction techniques and mutual information optimization for optimal parameter selection.

Detailed Documentation

In scientific computing, numerical solution methods are frequently employed for various applications. One common requirement involves calculating time delay t and embedding dimension m parameters. Traditional approaches like autocorrelation function methods and GP (Grassberger-Procaccia) methods can only determine either t or m separately, requiring sequential calculations. This program implements an innovative approach that simultaneously computes both time delay t and embedding dimension m values through coordinated optimization algorithms. The methodology employs mutual information criteria for time delay selection and false nearest neighbor analysis for dimension determination, integrated into a unified computational framework. This integrated approach proves particularly valuable when computing Lyapunov exponents, as accurate Lyapunov calculations fundamentally depend on proper preliminary determination of both t and m parameters. The program's implementation includes phase space reconstruction algorithms with automatic parameter optimization, making it significantly more convenient than traditional segmented approaches. Therefore, this computational tool holds substantial importance in scientific computing applications involving nonlinear dynamics and chaos analysis.