Abstract: This paper presents the design of a 50MHz Wind Profiler with focus on modularity, signal processing needs to be done and the major hardware blocks involved in the signal processing. Wind profiler radars are vertically directed pulsed Doppler radars capable of analyzing the back-scattered signals to determine the velocity of air along the beams. By steering the beams typically 15° from zenith, the horizontal and vertical components of the air motion can be obtained. The bands around 50 MHz are ideally suited for high altitude measurements. In view of the physics involved, for measurements above 20 km, only the 50 MHz band can be used. The paper discusses the issues such as the principle of wind profiler radar, How wind profilers estimate the horizontal wind as a function of altitude in ‘clear air’, Doppler Beam Swinging (DBS) technique for Wind velocity measurement, Signal processing done on transmitted signal, Signal processing done on received signal, necessity of the signal processing and the hardware used for the signal processing.