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本文介绍一种加快频率合成器跳频速度的新方法,该方法能确保环路的初始频差在快捕带以内,使环路迅速捕获锁定。同时,这种方法降低了对VCO性能的要求,只要在VCO振荡频率的范围内,都能保证环路实现快捕。本方法硬件结构简单、容易实现,并有较大的灵活性,在未来工程中将具有广泛的应用前景。
This article describes a new method to speed up the frequency synthesizer frequency hopping that ensures that the initial frequency offset of the loop is within the fast acquisition band and allows the loop to quickly capture the lock. At the same time, this method reduces the VCO performance requirements, as long as the oscillation frequency in the range of VCO, to ensure that the loop to achieve fast capture. The method has the advantages of simple hardware structure, easy realization, great flexibility and broad application prospect in the future engineering.