This document explores the significance of Direct Digital Synthesis (DDS) in radar signal processing, particularly in low-cost radar sensors. It discusses the advantages of DDS in improving production, accuracy, and cost savings. The document also includes a literature review on the technology used in this field, such as Xilinx FPGA and PLL stabilized FMCW radar systems. Additionally, it highlights the gaps in current methods and signal generation. References are provided for further reading.