舰船电子对抗

分析了电磁环境、前端元器件以及阵元耦合等因素对干涉仪系统相位误差的影响,提出一种新型的干涉仪系统相位误差校准方法,通过自检对全频段雷达信号进行相位校正,采用置信度评价准则对实测结果进行判定。实际测量结果表明,该方法能够快速准确地校准系统误差,极大地提高了系统的测向精度,为系统的功能实现提供了重要的技术手段,具有一定的工程应用价值。

The influence of electromagnetic environment,front-end components and array element coupling,etc.on the phase error of the interferometer system are analyzed,and a novel phase error calibration method for interferometer system is proposed.The phase correction of full-band radar signal is performed through self-test,and the confidence evaluation criterion is used to determine the measured results.The actual measurement results indicate that this method can calibrate the system errors quickly and accurately,improve the direction finding accuracy of the system greatly,provide important technical means for the realization of system function,and has certain engineering application value.