SIMULINK Implementation of DDS Simulation Model with Constant Control Word

This implementation uses MATLAB's SIMULINK tool to create a simulation model for Direct Digital Synthesis (DDS). The model is configured with a constant control word parameter, which determines the phase increment for frequency generation. The simulation demonstrates DDS operational principles by utilizing a phase accumulator and lookup table approach, where the phase accumulator increments by the fixed control word value each clock cycle, and the lookup table converts phase information into corresponding amplitude values for waveform synthesis.

The primary objective of this model is to simulate the fundamental working mechanism of DDS systems. Users can modify input parameters to observe system responses and analyze frequency resolution characteristics. Through this simulation platform, engineers can gain deeper insights into DDS operation principles, enabling further research and optimization of frequency synthesis techniques. The model incorporates key DDS components including phase accumulator implementation, sine/cosine waveform generation algorithms, and digital-to-analog conversion simulation blocks.