MATLAB Implementation of Frequency Modulation Spread Spectrum

Frequency Modulation Spread Spectrum (FM-SS) and Differential Frequency Hopping (DFH) represent emerging spread spectrum communication technologies that integrate frequency hopping patterns, information modulation, and demodulation functionalities into a unified framework. This creates a fundamentally different technical architecture compared to traditional frequency hopping systems. This article provides a comprehensive introduction to DFH technology, analyzing its core technical components while highlighting both advantages and unresolved challenges in practical implementation through MATLAB code examples.