信號波形處理設(shè)計論(已修改)
2025-06-19 07:42 本頁面
【正文】 信號波形合成實驗電路摘 要：本設(shè)計由六個模塊構(gòu)成：方波信號產(chǎn)生模塊，正弦信號產(chǎn)生模塊（濾波模塊），幅度調(diào)節(jié)模塊，波形疊加模塊，以及正弦波幅值測量。利用晶振和CD4060產(chǎn)生方波，以提高信號的頻率穩(wěn)定度，采用74LS161構(gòu)成分頻電路得到所需要的信號頻率。使用Filter Solution軟件設(shè)置RC參數(shù)實現(xiàn)具有較好截止特性的低通濾波器對方波進行濾波，以得到所需正弦信號，幅度、相位調(diào)節(jié)后用運算法放大器構(gòu)成加法電路實現(xiàn)正弦信號的合成，采用減法電路實現(xiàn)三角波。采用MSP430單片機控制TLV1544實現(xiàn)了電壓測量功能。關(guān)鍵詞：信號合成，濾波，TLC085,MSP430Abstract： This design consists of six blocks: pulse signal generated module, sine signal generated module (filter module), amplitude adjustment module, waveform modules,and the sine wave amplitude measurement modules. Use crystals and CD4060 produce square, in order to improve the signal frequency stability, using 74LS161 constitute frequency circuit receive required signal frequency. Using the software configuration separate RC parameters have good by the characteristics of wavelet to other lowpass Filter to get Filter for sinusoidal, amplitude, phase adjusting method of operation amplifier prise by addition of sine signal circuit implementation,
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