锁相环在捷变频率合成中的应用

捷变频率合成是雷达、通信、电子对抗等领域中极为重要的技术。锁相频率合成（PLL）具有比DDS更优秀的杂散抑制能力,常用于捷变频率合成。本文介绍了捷变合成常用方法,分析了PLL的原理及PLL频率捷变的影响因素。最后讨论了PLL在捷变频率合成中的基本方法,并分别举例说明其特点,对捷变频率合成的研究有很高的参考价值。

Applications of PLL in Frequency Agile Synthesis

The frequency agile synthesis technique plays an important role in radar,communication and electronic countermeasure areas.Because of the better spur control than DDS,the Phase Locked Loop (PLL) frequency synthesis is usually used in frequency agile synthesis.In this paper,the basic methods of Frequency agile signal synthesis are introduced at first.Then the principle of PLL and the influencing factors of PLL frequency agile are analysed.At last the basic methods of PLL in frequency agile synthesis are disc...