Implementation of Rational Sampling Rate Conversion

This software implements rational sampling rate conversion, enabling transformation of input signal sampling rates to desired output rates using ratio-based algorithms. The system employs efficient interpolation and decimation techniques combined with anti-aliasing filtering to maintain signal integrity during conversion. Key functions include calculateConversionRatio() for rational factor determination and applyPolyphaseFilter() for efficient multirate processing.

Beyond basic conversion, the software provides comprehensive input/output analysis through analyzeSignalCharacteristics() function, allowing users to examine spectral changes, signal-to-noise ratios, and distortion metrics. Users can configure input and output sampling rates through setInputRate() and setOutputRate() methods, with validation checks ensuring compatible rate relationships.

The comparison module utilizes compareSignals() algorithm to evaluate conversion quality through metrics like Mean Squared Error and spectral coherence. Additional advanced features include customizable FIR/IIR filtering through designFilter() function, signal preprocessing options, and real-time visualization tools for monitoring conversion effects. This makes it an essential tool for applications requiring precision sampling rate adaptation and thorough signal analysis.

Overall, this represents a robust solution for engineers and researchers working with multirate signal processing, digital communications, and audio processing systems where accurate sampling rate conversion and detailed signal analysis are critical requirements.