tion based on multidimensional iterative is selected, which is analyzed specifically and the results is applied pensate array errors. The relationship between the parameters of the iterative is analyzed through simulation, the results verify the improvement of direction finding performance through array calibrating.РAccording to the nonuniform circular antenna array of actual system, measured data is collected. Based on the improved method, the applicative model of mutual coupling errors is established, self calibration is applied pensate the errors, the simulation results verify the improvement of system performance through improved algorithm and array calibration.РKey words:direction finding errors; spatial baseline; nonuniform circular antenna array; ambiguity solving; array calibration
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