【摘要】：離散傅里葉變換是計(jì)算機(jī)對(duì)信號(hào)頻譜進(jìn)行分析的理論基礎(chǔ),在《數(shù)字信號(hào)處理》這門課程中進(jìn)行了詳細(xì)的理論推導(dǎo)。學(xué)生在對(duì)這部分內(nèi)容做實(shí)驗(yàn)的過程中,往往會(huì)忽視實(shí)驗(yàn)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(diǎn)闡述連續(xù)周期信號(hào)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(shí)際的例子在MATLAB環(huán)境下進(jìn)行了分析和驗(yàn)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(zhǎng)江大學(xué)電子信息學(xué)院;
【分類號(hào)】：TN911.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 喬建華;張雪英;;用DFT對(duì)連續(xù)信號(hào)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(xiàn)】

相關(guān)期刊論文 前10條

1 劉永紅;王娜;;“數(shù)字信號(hào)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(bào);2014年02期

2 王海濱;解傳軍;梁明s，

本文編號(hào)：2362236