一种实现快速跳频的方法  

A realization method of frequency-hopping

作　　者：万鸣 魏萍 王贵昌 

机构地区：[1]成都西科微波通讯有限公司,四川成都610036

出　　处：《太赫兹科学与电子信息学报》2013年第5期762-764,共3页Journal of Terahertz Science and Electronic Information Technology

摘　　要：介绍了一种简洁可靠的数字锁相频综快速跳频的原理、组成及实现,采用电阻开关网络对锁相环(PLL)进行预置,在保证相位噪声、杂散等指标不变的前提下提高了跳频速度,并通过了实际的测试。该方法实现了锁相电路跳频过程中的快速预置,加速了频综的跳频速度。The fast frequency hopping principle, composition and implementation of a simple and reliable digital phase-locked frequency synthesizer is introduced. A resistance switching network is adopted for Phase-Locked Loop（PLL） presets. The hopping speed is improved under the premise of keeping the phase noise, spurs and other indicators unchanged. The actual tests indicate that the proposed method can realize the fast frequency hopping process preset of phase-locked circuit, and accelerate the frequency hopping speed.

关 键 词：锁相环 预置 跳频 电阻网络 

分 类 号：TN914.41[电子电信—通信与信息系统]