论文部分内容阅读
本文提出一种小数分频自适应锁相频率合成方案,以提高鉴相频率和自适应改善环路自然角频率ω_n两方面去提高频率转换速度.并针对小数分频中模拟相位内插补偿时D/A变换的问题,采用数码-脉宽-电荷变换法进行电荷补偿.最后分析了环路的性能,证明该系统是能胜任跳频频率合成任务的.
In this paper, a novel fractional frequency adaptive phase-locked frequency synthesis scheme is proposed to improve the phase frequency and adaptively improve the loop natural angle frequency ω_n to improve the frequency conversion rate. D / A conversion problem, using digital - pulse-charge-charge method of charge compensation.Finally, the performance of the loop is analyzed to prove that the system is capable of frequency hopping frequency synthesis task.