本振频率

There are two kinds of errors, cold tracking error and post-hot-tracking error.

文中着重讨论了本振频率冷跟踪误差问题。

The´ main factors resulting in local frequency tracking error are analyzed based on the principles of the tracking local oscillator for frequency agile radars of rotary tuning magnetron type.

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。

The author´s main work is the development of the lo (local oscillator) in DTV transmitter, it is one of the important research projects planned by Shanghai Mingzhu Company.

作者的主要工作就是设计数字电视发射机中的本振频率源，这是上海明珠公司数字电视发射机开发项目的一个重要部分。

The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.

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。

high frequency drift of the first IF signal offset, put a lot down. Should adjust its local oscillator frequency, so that clutter disappear.

高频头频率漂移引起中频信号偏移，放大量下降。应调整其本振频率，让杂波消失。