Self-cross Phase Calibration Method of Oversized Front Distributed Phased Array Radar
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摘要: 针对传统的相控阵雷达定标算法无法适用于超大阵面分布式相控阵雷达的问题,该文提出了自定标、交叉定标相结合的相位定标算法。分析了超大阵面分布式相控阵雷达的误差来源;建立了超大阵面分布式天线阵列在工程约束下的误差模型,详细阐述了自定标和交叉定标的原理和方法,并将该方法从相位单元推广到雷达阵列。最后,对自-相交相位定标算法进行了仿真实验和工程应用。结果表明该算法能大幅提高超大阵面分布式相控阵雷达的主旁瓣电平比。Abstract: For oversized front distributed phased array radar, the conventional phased array radar calibration algorithm can not work. This paper presents the combination of self-calibration and cross-calibration algorithm. Analyzed the error sources of the oversized front distributed phased array radar. Established the error model of the oversized front distributed phased array radar. Elaborated the self-calibration and cross-calibration principles and methods. This method is extended to the phase array radar from units. Finally, we carry out the self-intersecting phase calibration simulation experiments. The simulation results show that the algorithm can significantly improve the oversized front distributed phased array radar sidelobe level.
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