宽带快速跳频频率合成器的研究与实现  

Design and Realization of Wide-band Fast Frequency Hopping Synthesizer

作　　者：应鲁曲[1] 卢西义[2] 王欢[3] 苟亮[4] 

机构地区：[1]解放军理工大学通信工程学院卫星通信系,江苏南京210007 [2]解放军理工大学通信工程学院研究生4队,江苏南京210007 [3]总参谋部第63研究所,江苏南京210007 [4]解放军理工大学通信工程学院研究生2队,江苏南京210007

出　　处：《军事通信技术》2007年第4期55-57,99,共4页Journal of Military Communications Technology

摘　　要：文章概述了宽带快速跳频频率合成器的技术种类,讨论了分数分频锁相环频率合成器和基于DDS的分数分频锁相环频合器的结构、原理和各自的特点,采用DDS分数分频频率合成方案,设计和实现了基于AD9956芯片、频率范围为1800MHz^2300MHz的快速跳频频率合成器。测试结果表明该频率合成器相噪低、频谱纯度高、频率转换速度快,满足低功耗、小型化要求,方便与应用系统相连,可大大提高卫星通信的抗干扰能力,也可应用于其他无线通信系统。Several schemes of wide-band fast frequency hopping synthesizer were briefly described. The architectures, principles and characteristics of fractional phase-locked loop frequency synthesizer and fractional phase-locked loop frequency synthesizer based on DDS were discussed. A scheme of fast frequency hopping synthesizer was designed and realized based on AD9956 with a frequency range of 1800MHz to 2300MHz. The test results proves that it provides low phase noise, pure frequency and fast convert signals, which meet the requirements of low power, small size, and easy use. The frequency synthesizer can greatly improve the anti-jamming capability of satellite communication systems and can also be used in many other wireless communication systems.

关 键 词：锁相环 直接数字频率合成 分频 跳频 

分 类 号：TN92[电子电信—通信与信息系统]