A 94 GHz OFDM Frequency Scanning Radar for Autonomous Landing Guidance

Autonomous landing guidance (ALG) is an airborne navigation radar developed by BAE Systems North America in collaboration with MBDA UK. The 94 GHz ALG radar reduces dependence on ground-based instrument landing system (ILS) and space-borne GPS in landing the aircraft by allowing pilots to map the runway even under adverse weather conditions. In this paper, a novel 94 GHz orthogonal frequency division multiplexing (OFDM) frequency scanning radar (FSR) concept is presented, which offers potential cost and size reductions over the legacy design.