In the process of signal digital intermediate-frequency received, digital down convertion, frequency tracking of carrier and phase locked loop are the keys.
在信号的中频数字接收过程中，数字下变频、载波频率与相位跟踪是设计的关键所在。
High precise measuring and tracking of carrier frequency-deviation is necessary to the realization of a high performance phase locked loop in carrier recovery.
载波恢复中高精度的频偏检测与跟踪是高性能锁相位环路实现的必要条件。
High precise measuring and tracking of carrier frequency-deviation is necessary to the realization of a high performance phase locked loop in carrier recovery.
载波恢复中高精度的频偏检测与跟踪是高性能锁相位环路实现的必要条件。
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