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dsPIC FFT 輸出異常
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中級會員
 
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版上前輩們好
我參考網路CE018範例來做256點的FFT 範例執行上沒有問題 但將輸入訊號從範例的方波替換為其他訊號 相同輸入訊號 , dspic的輸出訊號 卻和matlab的輸出訊號不一樣 感覺較低的訊號 , dspic無法顯示出來 附檔中有程式碼與輸出訊號圖 再請各位幫忙看看有哪裡需要修改嗎 感謝 (原程式右移1位元 更改為*30,避免輸入訊號太小,FFT輸出皆為0) Attach file: Link only for registered users
發表於: 2021/7/21 14:21
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