宽带DBF测向设备通道校正方法及工程实现

Channel Calibration Method and Engineering Implementation of Wideband DBF Direction Finding Equipment

针对数字波束形成技术特点和宽带DBF测向设备通道一致性影响因素,结合宽带DBF测向设备工作原理,提出了一种基于外场辐射校正和内场微波通道校正相结合的多通道校正方法。通过实际宽带DBF测向设备研制以及对样机进行测试等相关工作,可知该通道校正方法可以有效完成测向设备幅相一致性通道的校正工作,实用性强。

Aiming at the characteristics of digital beamforming technology and the influencing factors of the channel consistency of broadband DBF direction finding equipment,combined with the working principle of broadband DBF direction finding equipment,a multi-channel based on the combination of external field radiation correction and internal field microwave channel correction is proposed. The calibration method is based on the development of actual wideband DBF direction finding equipment and testing of prototypes. The test results show that the channel calibration method can effectively complete the calibration of the amplitude and phase consistency channels of the direction finding equipment,and is highly practical.