Abstract:Frequency diverse array radar has the problem of ambiguity in angle and range localization.Based on the same ranging principle as early multi-frequency continuous wave radar, a model for the multi-frequency continuous wave (MFCW) radar is proposed, which overcomes the ambiguity of the angle-range beampattern of the traditional frequency diverse array (FDA).The signal models of the MFCW radar under four operating modes are deduced according to the number of transmitting and receiving elements, and the reason for the decoupled angle-range localization is analyzed compared with the traditional FDA.A joint angle-range localization method based on iterative interpolation Fourier coefficients (IIFC) is proposed for the single-input multiple-output (SIMO) mode.The performance of the algorithm is analyzed theoretically.Simulation results show the effectiveness of the proposed scheme and the algorithm.
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