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- In order to view a signal (taken to be a function of time) represented over both time and frequency axis, time–frequency representation is used. Spectrogram is one of the most popular time-frequency representation, and generalized spectrogram, also called "two-window spectrogram", is the generalized application of spectrogram. (en)
- 廣義頻譜圖(Generalized spectrogram),為頻譜圖的通用型。為了得知信號隨著時間的頻率分布狀態,以頻譜圖觀察時,其解析度受到測不準原理影響,頻率解析度與時間解析度相乘為定值。為解決此問題,於是將頻譜圖推廣至廣義頻譜圖。 一段隨時間變化的信號,同時具有時域和頻域的特徵,若想要了解一個信號在某段時間內的頻率特徵,最好的方式就是使用時頻分析,觀察一段信號的時頻分布圖。頻譜圖(Spectrogram)就是其中一種同時表示時間和頻率特徵的分布圖。 (zh)
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- 3968 (xsd:nonNegativeInteger)
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rdfs:comment
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- In order to view a signal (taken to be a function of time) represented over both time and frequency axis, time–frequency representation is used. Spectrogram is one of the most popular time-frequency representation, and generalized spectrogram, also called "two-window spectrogram", is the generalized application of spectrogram. (en)
- 廣義頻譜圖(Generalized spectrogram),為頻譜圖的通用型。為了得知信號隨著時間的頻率分布狀態,以頻譜圖觀察時,其解析度受到測不準原理影響,頻率解析度與時間解析度相乘為定值。為解決此問題,於是將頻譜圖推廣至廣義頻譜圖。 一段隨時間變化的信號,同時具有時域和頻域的特徵,若想要了解一個信號在某段時間內的頻率特徵,最好的方式就是使用時頻分析,觀察一段信號的時頻分布圖。頻譜圖(Spectrogram)就是其中一種同時表示時間和頻率特徵的分布圖。 (zh)
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rdfs:label
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- Generalized spectrogram (en)
- 廣義頻譜圖 (zh)
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