Drone Communication Efficient Realisation of Digital I-Q Modulation with Digital Signal Controller

Abstract

Drones are used in many areas. Almost every application requires drones to receive or send information to another drone or to the ground segment. On the analogue transmission channel, information described by digital signals can be transmitted by digital modulation techniques.
In this article, I present an effective multilevel digital modulator that can be implemented with a low-cost signal controller using fixed-point representations of numbers. The presented DSP algorithm produces an analogue I-Q output signal that can be converted to an RF radio signal by an analogue AM-DSB/SC method with orthogonal carriers.