frequency plan频率计划frequencyn.频繁；频率frequency particle distribution频率粒度分布frequency changed to adjust rev变频调速frequency modulation integrator调频积分器frequency dispersion correction频散校正frequency dependent enhancement频率依赖性增强frequency translation equipment频率转换设备frequency-independent antenna非频变天线frequency-exchange modulation换频调制frequency-measuring equipment[电] 测频装备frequency selective attenuation频率选择性衰减

1. On the basis of introducing the basic principles of DFH, the process of frequency hopping is modeled as the homogeneous Markov chain.
   本文在介绍差分跳频基本原理的基础上，将差分跳频的频率跳变过程建模成齐次马尔可夫链。