Abstract: Nowadays image analysis is not only applicable in medical field but also it is most effectively used in the fields such as Military monitoring system, land examination, to track geostationary position, weather analysis etc. to get all these information we require images and which are captured by using RADAR technology we have focused on detailed discussion of RADAR image formation and its different technologies which are used to get RADAR images and their fusion using wavelet transform.

Keywords: RADAR, SAR, RAR, DWT, Active radar, Passive radar, Swath, Nadir Point.