说明：  The aim of this project was to determine whether new direct digital synthesis (DDS) technology can be used as the base for low cost, high performance linear FM-CW radar systems. The system should be analysed mathematically, and simulated. Suitable components should be researched and the antennas will need to be designed. The system should be designed and built to be used as a radar demonstration in undergraduate courses. The system specifications are: range resolution of 1 m, with a maximum range 1000 m, with pedestrians as the target. It is to be operated from a laptop computer. An analog to digital converter (ADC) will therefore be required to capture the data. An FFT is then to be used to calculate the range to the target [4]. A second system should also be built to determine the suitability of the system to GPR [5]. This system will use as many common components from the first system as possible.