改进的干涉仪测向相位一致性校正技术

Correction Technique of Improved Phases Consistency Based on Interferometer Direction Finding Receiver

通道相位不一致是影响测向精度的重要因素之一。提出了一种改进相位一致性校正技术。与传统测向校正技术不同,系统增加了一个自检源,通过实时校正解决了温度、振动等环境条件改变引入的相位不一致性误差。改进的相位一致性校正具有计算量小、工程易实现等特点,不需要重新生成静态校正表,同时也降低了微波通道一致性要求。试验计算分析表明,该校正技术是可行的,并已在实际工程中得到了广泛的应用。

Channel phase inconsistency a new correcting technology of phase is the key factor to affect the direction finding（DF） accuracy,so consistency is proposed. The technology is different from traditional DF technology,because in the system a new self- check source is added to correct the DF error resuited from the environment such as temperature, vibration and so on. Meanwhile, the correction technology of phase consittency has the feature of low computing intensity and is easy to be realized in projects. Because the technology of phase consistency is adopted,in the process static correcting list is not necessary to be generated,at the same time the requirement to microwave channel is reduced. Analysis shows that the correction technology of phase consistency is feasible ,and can be applied widely.