Radar Tracking Continuous Wave

My teacher ask me to make a presentation about Radar Tracking Using continuous wave and i have no idea where to start.
Kindly post some ideas where to start or some terms. Thank you Very much and im not sure if i posted it on the right topic. :(

I would best start with some reading. CW signals are used in Doppler radars.

Google can help you.
Try the search terms 'CW radar' or 'FMCW radar'.
The latter is now becoming common for small boat radar.