Bistatic Radar Measurement and Inversion Modeling

The use of microwave sensors for imaging continues to grow for applications such as target detection, airport screening, soil moisture estimation, etc. Hence, there is a need for indoor microwave imaging facilities but current facilities are not flexibleenough to work in many different imaging scenarios such as bistatic and monostatic , 2D and 3D and full polarimetric imaging over a large range of frequencies (45 MHz - 20 GHz). These scenarios are important for many applications such as volumetricscattering, interferometric processing, ground penetrating analysis, etc.In Phase II we will develop a semi-portable microwave imaging device that works in all the scenarios mentioned above in order to satisfy a large variety of users. The flexibility of the device relies on our modified convolution backprojection (MCBP)imaging algorithm developed in Phase I and results will be presented. The MCBP can form a 2D and 3D image using both bi- or monostatic data and for any combination of transmit and receive antenna locations. In Phase II we will construct the prototype andintegrate it with the MCBP then use the prototype in a bistatic and monostatic facility to form 2- and 3D imagery of targets. Potential customers expressed strong interest in our proposed product.Benefits commercial and military users of RF/microwave sensors that operate between 45 MHz - 20 GHz for such application as concealed weapon detection, soil moisture estimation, camouflage concealment and deception (CCD) research, materials research,buried mine detection, non-destructive evaluation (NDE) of bridges and roads, automobile guidance, medical imaging, and more.