Interferometer Direction Finding MATLAB Programs

This documentation describes multiple MATLAB programs designed for interferometer direction finding applications. These programs are architecturally compatible and can be integrated with each other to create comprehensive direction finding systems. The suite includes Fast Fourier Transform (FFT) implementations for efficient spectral analysis and signal processing. Five core programs feature fundamental algorithmic components ("zhenyuan" modules) that handle critical operations such as phase difference calculation, array manifold processing, and direction of arrival estimation. Additional MATLAB programs in the collection also support interferometer direction finding tasks with similar integration capabilities, all incorporating FFT functionality and essential computational modules for robust performance in electromagnetic signal analysis and source localization. The codebase utilizes MATLAB's signal processing toolbox for implementing phase interferometry algorithms, including cross-correlation methods and phase-based direction finding techniques with array calibration routines.