[問題] 非週期隨機訊號如何做離散傅立葉轉換?
各位大神好 小弟非電資背景所以上來請教一下
假如我有一組訊號 每隔一段時間會發出一個脈衝波過來
發送的頻率和脈衝的振幅每次都會有一點差異
現在我想對這個脈衝波做取樣分析 例如10個點好了
我看課本上FFT似乎只能用在週期訊號上
如果想得知這個脈衝訊號的頻率分布 我該如何做轉換呢?
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※ 編輯: yujawe (140.112.229.3), 12/24/2015 00:06:11
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我現在想要知道每個脈衝波他獨自的頻譜 因為我要做脈衝波頻率變化的比較
※ 編輯: yujawe (140.112.229.3), 12/24/2015 00:21:55
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