Implementation Issues of Adaptive Array Processing for Space borne GPS Receiver

Research and development continues to extend the capabilities and to increase the robustness of global positioning systems (GPS) receivers. Adaptive array antenna have been widely used for GPS receiver for antenna beam-forming & nulling due to its sensitivity to signal multipath and intentional & non-intentional noise sources. It is obvious that the optimum array processing is the best suitable mitigation technique. This RF beam-forming employed in the GPS receiver leads the recent research methodology to mixed mode signal processing. A real time field programmable gate array (FPGA) implementation of MVDR beam-forming were presented here.