GMSK Modulation and Demodulation

In an ideal channel environment, GMSK modulation and demodulation techniques can be implemented to plot the power spectral density graph. This digital modulation scheme is commonly used in wireless communication systems for transmitting digital signals. GMSK modulation operates by gradually shifting the phase of the carrier frequency through Gaussian filtering of the input data stream, while demodulation typically employs coherent detection methods like differential detection or Viterbi algorithm-based approaches. The modulation process involves continuous phase modulation with minimal frequency deviations, resulting in excellent spectral efficiency and strong anti-interference capabilities. Implementation typically requires pulse shaping filters with BT product optimization and may involve MATLAB functions like gmskmod() for modulation and gmskdemod() for demodulation. Due to these superior characteristics, GMSK finds widespread application in wireless communication domains including GSM systems and satellite communications.