FDA radar ambiguity function optimization with simulated annealing algorithm

Different from phased-array providing range-independent beampattern, frequency diverse array (FDA) yields range-dependent transmit beampattern. Since ambiguity function is an effective tool to analyze the time-delay (range) and Doppler resolution performance of various radar systems, this paper derives the FDA radar ambiguity function and optimizes the ambiguity function with simulated annealing algorithm, with an aim to focus the transmit energy to the desired range-angle section and suppress undesired sidelobes. The proposed method is verified by numerical results.