| 姓名 |
蕭力豪(Li-Hao Hsiao)
查詢紙本館藏 |
畢業系所 |
光電科學與工程學系 |
| 論文名稱 |
雜訊擷取分離放大抵銷法實現低失真濾波系統
(Noise Extraction, Separation, Amplification and Offset to Realize Low Distortion Filtering System)
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| 相關論文 | |
| 檔案 |
 [Endnote RIS 格式]
[Bibtex 格式]
 [相關文章]  [文章引用]  [完整記錄]  [館藏目錄]  至系統瀏覽論文 ( 永不開放)
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| 摘要(中) |
本文提出一方式是透過並聯兩路訊號，其中一路將雜訊分離後擷取放大，另一路為一緩衝電路，再將兩訊號調整至同相位，最後將分離出的雜訊與緩衝器之輸出訊號以電壓差放大器與相抵銷。本文透過Multisim 13.0進行電路的返真模擬，以10KHz/2V之訊號混合6V_(p-p)的雜訊作為我們的輸入，可得到極高的訊號雜訊比SNR=44.68dB，極小的相位差(<100kHz ∅≈ 0°)，以及良好的電壓轉換率Slew Rate=3.58V/μs。因本文所設計之濾波系統沒有截止頻率，相對於傳統濾波器，可保留原始訊號的高次項諧波，也意味著能保留較完整的輸入訊號之資訊。本文所設計之濾波系統，不需要使用DSP，只需要簡易的電子元件即可完成，經本文之濾波系統後，輸入訊號 V_(in(p-p)) = 715mV，輸出訊號V_(out(p-p)) = 16mV，將雜訊抑制為原訊號之2.2%。 |
| 摘要(英) |
This paper proposes a way to connect two signals in parallel, one of which is to separate and extract the noise, and the other is a buffer circuit, and then adjust the two signals to the same phase, and finally the separated noise and the output of the buffer The signal is offset by a voltage difference amplifier. This article uses Multisim 13.0 to carry out the simulation of the circuit. Using 10KHz/2V signal mixed with 6V_(p-p) noise as our input, we can get a very high signal noise ratio SNR=44.68dB, and a very small phase difference(<100kHz ∅≈ 0°),and a good Slew Rate=3.58V/μs. Because the filter system designed in this paper does not have a cut-off frequency, compared with traditional filters, it can retain the higher order harmonics of the original signal, which also means that it can retain more complete input signal. The filtering system designed in this article does not need to use DSP, and only needs simple electronic components to complete. After the filtering system in this article, the input signal V_(in(p-p)) = 715mV, the output signal V_(out(p-p)) = 16mV, the noise is suppressed to 2.2% of the original signal. |
| 關鍵字(中) |
★ 雜訊
★ 濾波器
★ 諧波 |
關鍵字(英) |
★ Noise
★ Filter
★ Harmonic |
| 論文目次 |
目錄
摘要 i
Abstract ii
我的貢獻 iii
誌謝 iv
目錄 v
圖目錄 vii
表目錄 x
第一章 緒論 1
1.1研究動機與目的 1
1.2論文架構 3
第二章 訊號雜訊與濾波器 4
2.1 簡介 4
2.2 訊號(Signal) 4
2.2-1 波形(Waveform) 5
2.2-2 諧波(Harmonic) 6
2.2-3 方波(Square wave) 8
2.3 雜訊 (Noise) 10
2.3-1 訊號雜訊比(Signal-to-noise ratio , SNR) 16
2.3-2 動態範圍 (Dynamic Range, DR) 16
2-4 電子濾波器(Electronic Filters) 17
2-4.1 無源濾波電路(Passive Electronic Filter) 18
2-4.2 有源濾波電路(Active Electronic Filter) 21
第三章 濾波器電路架構與設計 24
3-1 雜訊擷取放大抵銷濾波系統之架構 24
3-2 系統架構圖 25
3-2.1 零件選擇 26
3-3 電路原理與動作 27
3-3.1 實驗步驟 27
3-3.2 實驗分析 31
3-3.3 濾波系統模型比較 34
3-3.4 模擬驗證 38
第四章 結論與未來展望 51
4-1結論 51
4-2未來展望 53
參考文獻 54 |
| 參考文獻 |
Adel S Sedra & Kenneth Carless Smith , “Microelectronic Circuits , 6th edition” Oxford University Press, USA, 2009.
D. A. Neamen, ”Electronic Circuit Analysis and Design, 2nd edition”, McGraw -Hill, 2001.
LIN, HAN-CHIH” Design of the high attenuation low pass filter with wide stopband and ultra-wide bandpass filter with broad stopband”,2017
JUNG-TAI SHIH “A 3rd Order Butterworth Gm-C Filter for Ultrasound Systems” ,2018
En-Hao Tong, “Design and Applicantion of Low Pass Filter,”, 2015.
C. D. Motchenbacher and F. C. Fitchen, “Low-Noise Electronic Design”, New York: Wiley, 1973
LIN JUNYI, “Low Distortion Noise Filter Realized with Average High and Low Peaks Method”, 2018
Lei Liu, Jianyue Ren,Ko-Wen Jwo,Yu Zhang, and Xianfeng Li. ”Low Distortion Harbin of technology” 2016
Online resources︰Texas Instruments , https://www.ti.com/, RM4136 datasheet
Online resources︰Wikipedia
https://zh.wikipedia.org/wiki/%E8%B0%90%E6%B3%A2
B. Razavi, “Design of analog CMOS integrated circuits,” New York: McGraw-Hill, 2001.
Chen Kunming, “電子元件的雜訊從何而來,” 奈米通訊23卷No.4
Online resources︰ELECTRONICS HUB
https://www.electronicshub.org/tutorials/#3_Filters
Online resources︰Electronics-tutorials
https://www.electronics-tutorials.ws/filter/second-order-filters.html
Online resources︰Electronics-tutorials
https://zh.wikipedia.org/wiki/傅里叶级数 |
| 指導教授 |
張榮森(Rong-Seng Chang)
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審核日期 |
2020-7-29 |
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