An Excellent Simulation Program for GMSK-1DD Digital Modulation

GMSK-1DD, as an efficient digital modulation technique, is widely used in communication systems. This simulation program accurately models the entire process of GMSK signal generation, transmission, and demodulation through a carefully designed signal processing chain. The implementation employs a 1-bit differential detection (1DD) algorithm within an innovative simulation architecture that achieves performance close to theoretical values. The core algorithm processes phase differences between consecutive symbols, demonstrating robust Bit Error Rate (BER) characteristics even under low Signal-to-Noise Ratio (SNR) conditions through Monte Carlo simulation methods. The most distinctive feature of this simulation is its precise channel modeling capability, which realistically simulates common communication impairments including Additive White Gaussian Noise (AWGN) and multipath effects using Rayleigh fading models. By adjusting key parameters through a configuration interface, users can visually observe system performance variations under different conditions. Simulation results are presented through a clear graphical interface containing professional analysis tools such as eye diagrams, constellation plots, and BER curves. The program incorporates modular design principles with separate functions for signal generation, channel simulation, and detection algorithms, facilitating secondary development and performance comparisons for researchers studying GMSK modulation characteristics. The object-oriented architecture allows easy extension of modulation schemes and channel models.