發(fā)布時間：2019-03-23 18:14

【摘要】：鎖相環(huán)的跟蹤性能是"鎖相技術(shù)"課程教學(xué)中的重點(diǎn)內(nèi)容。本文首先對鎖相環(huán)的跟蹤性能進(jìn)行理論分析,然后基于VisSim仿真軟件建立了二階鎖相環(huán)的仿真模型,并對鎖相環(huán)的跟蹤性能進(jìn)行了仿真。給出了鎖相環(huán)的輸入信號存在相位階躍和頻率階躍兩種情況下的相位誤差變化曲線和動態(tài)跟蹤輸出波形。通過仿真,學(xué)生更容易理解鎖相環(huán)的動態(tài)跟蹤性能,有助于為今后工作中進(jìn)行鎖相環(huán)電路的設(shè)計(jì)與應(yīng)用打下良好的基礎(chǔ)。
[Abstract]:The tracking performance of phase-locked loop is the key content in the course of phase-locked technology. In this paper, the tracking performance of PLL is analyzed theoretically, then the simulation model of second-order PLL is established based on VisSim simulation software, and the tracking performance of PLL is simulated. The phase error curve and the dynamic tracking output waveform of the input signal of PLL are given under the conditions of phase step and frequency step. Through simulation, it is easier for students to understand the dynamic tracking performance of PLL, which is helpful to lay a good foundation for the design and application of PLL circuit in future work.
【作者單位】： 大連海事大學(xué)信息科學(xué)技術(shù)學(xué)院;
【基金】：遼寧省普通高校本科重點(diǎn)建設(shè)專業(yè)項(xiàng)目(ZG201409) 大連海事大學(xué)教改項(xiàng)目(2014Q10)
【分類號】：TN911.8-4;G642
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本文編號：2446113