Explore MATLAB source code curated for "干涉仪测向" with clean implementations, documentation, and examples.
Multiple MATLAB programs for interferometer direction finding with cross-compatibility features. Includes FFT-based implementations and five core algorithms with essential computational modules for signal processing and direction of arrival estimation.
This project presents interferometer direction finding using the omnidirectional amplitude comparison method, complete with MATLAB simulation source code. The implementation includes two key files: a function file containing the core algorithm and a main script file. Executing the main script generates direction finding errors under various cross-interference scenarios and analyzes how different numbers of antenna elements affect measurement accuracy in omnidirectional amplitude comparison.
Interferometer direction finding offers high precision and rapid response, making it widely applicable in passive detection and positioning systems. Traditional interferometers utilize short baselines to ensure unambiguous direction-finding range and long baselines to guarantee accuracy, typically employing integer baseline ratios. However, this method faces implementation challenges in broadband applications and exhibits high sensitivity to antenna array placement. This research focuses on fractional-order interferometer direction-finding algorithms that simultaneously achieve broadband operation, high precision, and ambiguity resolution. The study investigates the impact of different fractional ratios and phase measurement errors on direction-finding accuracy, supported by simulation-based verification.