CAJ | 학술논문

快速跳频锁相环技术已经广泛应用于短波、超短波、卫星通信以及雷达等军用领域。从频域上来看，跳频信号的频谱是一个在很宽频带上以不等间隔随机跳变的。与定频通信相比，跳频通信比较隐蔽也难以被截获。同时，跳频通信也具有良好的抗干扰能力，即使有部分频点被干扰，仍能在其他未被干扰的频点上进行正常的通信。文中主要介绍了下列四种跳频方式：1、直接混频法；2、高速单锁相环；3、DDS＋ PL L快速跳频法；4、乒乓环交替输出法。
쾌속도빈쇄상배기술이경엄범응용우단파、초단파、위성통신이급뢰체등군용영역。종빈역상래간，도빈신호적빈보시일개재흔관빈대상이불등간격수궤도변적。여정빈통신상비，도빈통신비교은폐야난이피절획。동시，도빈통신야구유량호적항간우능력，즉사유부분빈점피간우，잉능재기타미피간우적빈점상진행정상적통신。문중주요개소료하렬사충도빈방식：1、직접혼빈법；2、고속단쇄상배；3、DDS＋ PL L쾌속도빈법；4、핑퐁배교체수출법。
Fast frequency hopping phase locked loop technique has been widely used in U HF satellite communications and radar and military field .From the frequency domain ,the frequency hopping signal spectrum is a range in a broadband bring to interval random jump .Compared with the fixed frequency communication ,frequency hopping communication is hidden and difficult to be intercepted .At the same time ,the frequency hopping communication also has a good anti -jamming ability ,even if is interference with some frequency points ,still can be in other undisturbed frequency point for regular communication . This paper mainly introduces the following four kinds of frequency hopping mode :1 ,direct mixing method;2 ,high speed single phase locked loop ;3 ,DDS+ PLL for fast frequency hopping method ;4 , table tennis loop alternating output method .