柵欄效應(yīng)在連續(xù)周期信號譜分析中的研究
發(fā)布時間:2018-11-28 07:36
【摘要】:離散傅里葉變換是計算機對信號頻譜進行分析的理論基礎(chǔ),在《數(shù)字信號處理》這門課程中進行了詳細(xì)的理論推導(dǎo)。學(xué)生在對這部分內(nèi)容做實驗的過程中,往往會忽視實驗結(jié)果里面出現(xiàn)的一些由柵欄效應(yīng)引起的細(xì)小差別。本文重點闡述連續(xù)周期信號頻譜由柵欄效應(yīng)導(dǎo)致的誤差并提出相應(yīng)的改善方法。文章還結(jié)合了實際的例子在MATLAB環(huán)境下進行了分析和驗證。
[Abstract]:Discrete Fourier transform (DFT) is the theoretical basis for the analysis of signal spectrum by computer. The theoretical derivation is carried out in the course of Digital signal processing. In the course of doing experiments on this part, students tend to ignore the small differences caused by the fence effect in the experimental results. This paper focuses on the error caused by the fence effect in the frequency spectrum of the continuous periodic signal and puts forward the corresponding improvement methods. The paper also analyzes and verifies it in MATLAB environment with practical examples.
【作者單位】: 長江大學(xué)電子信息學(xué)院;
【分類號】:TN911.6
[Abstract]:Discrete Fourier transform (DFT) is the theoretical basis for the analysis of signal spectrum by computer. The theoretical derivation is carried out in the course of Digital signal processing. In the course of doing experiments on this part, students tend to ignore the small differences caused by the fence effect in the experimental results. This paper focuses on the error caused by the fence effect in the frequency spectrum of the continuous periodic signal and puts forward the corresponding improvement methods. The paper also analyzes and verifies it in MATLAB environment with practical examples.
【作者單位】: 長江大學(xué)電子信息學(xué)院;
【分類號】:TN911.6
【參考文獻】
相關(guān)期刊論文 前1條
1 喬建華;張雪英;;用DFT對連續(xù)信號譜分析的誤差問題[J];現(xiàn)代電子技術(shù);2014年13期
【共引文獻】
相關(guān)期刊論文 前10條
1 劉永紅;王娜;;“數(shù)字信號處理”課程學(xué)習(xí)興趣的培養(yǎng)[J];電氣電子教學(xué)學(xué)報;2014年02期
2 王海濱;解傳軍;梁明s,
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