X-band Radar Detection of Point Scatterers David Breton Nicholas Buckminster Michael Leuchtenburg Advisor: S. Frasier

Now…. Current System –FMCW –S-band –Clear-air scatter –Watch atmospheric boundary layer turbulence –Current system observes different types of scattering from other sources

The Problem Readings obscured by responses of small airborne objects in beam path Measurements appear inconclusive without consistent data

A Solution X-band signal would produce much more intense response from point scatterers Locations of insects could be used to resolve irregularities of S-band data FMICW radar –available materials –development of control, processing, and storage systems

Some Existing Systems FMCW –Two Antenna Method –Leakage Saturation of receiver –Isolation difficult FMICW –One Antenna Method T/R Switching

The System Transmitting –Oscillator –DDS –Amplifier –Antenna

The System Receiving –Band-pass filter –Amplifier –Mixer –Sampling

Putting it all together

Requirements Interconnections…

Requirements X-band Variable chirp bandwidth Variable range resolution Mobile/low power Low Cost –Existing Hardware –Purchases

Upcoming Events MDR –Subsystems obtained and assembled –Interconnection requirements satisfied –Software interface designed CDR –Processing software operational –Functional prototype Demonstration Day Thank You - Questions, please