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本文从旋转变频磁控管式频率捷变雷达的本振频率跟踪原理出发,分析了产生本振频率跟踪误差的主要因素。文中着重讨论了本振频率冷跟踪误差问题。同时也提出了热跟踪后本振频率跟踪误差项。分析前者,可以决定热跟踪电路应予修正的频率范围,而后者则是跟踪本振最终的误差。以上分析对如何采取措施提高系统的跟踪精度是有参考作用的。
In this paper, based on the principle of local frequency tracking of a rotating frequency conversion magnetron frequency agile radar, the main factors that produce the tracking error of local frequency are analyzed. This paper focuses on the issue of cold tracking error of local oscillator frequency. At the same time, the tracking error of local oscillator frequency is also proposed. The former analysis, you can determine the thermal tracking circuit should be corrected frequency range, while the latter is to track the final local oscillator error. The above analysis on how to take measures to improve the tracking accuracy of the system is a reference.