Visualization of digital modulation techniques

Abstract: Digital communication has gone through much development in the past decade. The literature in this field has developed and improved as well, but the educational materials still lack illustrative descriptions. The modulation techniques are a very complex area that needs practical implementation to facilitate intuitive understanding for engineering students. This thesis presents an educational application where users conduct experiments in digital modulation techniques, ASK, PSK, QAM, and OFDM. The product is a simulation application of the transmission of information from transmitter to receiver with a theoretical description. The application is programmed within the MATLAB environment, and the result is presented with a GUI that contains signal diagrams for each step of the modulation and demodulation process. This tool provides an illustrative description of the modulation techniques without any need for more extensive mathematical knowledge.