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本文叙述了雷达角跟踪问题,简略介绍了现代雷达减少和抑制多经误差所采用的几种方法。并详细推导了连续波调频体制多径相位误差与调制指数的基本关系式,证明增大调制指数β可使引入多径相位误差减小。并概述了连续波调频体制在跟踪测量方面的应用。
This paper describes the problem of radar angular tracking and briefly introduces several methods used by modern radars to reduce and suppress multiple errors. The basic relation between multipath phase error and modulation index of continuous-wave FM system is deduced in detail. It is proved that increasing the modulation index β can reduce the phase error of the introduced multipath. The application of CW FM system in tracking measurement is also summarized.