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DSP筆試題目
DSP題目
1.H(n)??a*h(n?1)+b*δ(n)
(1)求h(n)的z變換
(2)該系統(tǒng)是否為穩(wěn)定系統(tǒng)
(3)寫(xiě)出FIR數(shù)字濾波器的差分方程
2.寫(xiě)出下面模擬信號(hào)所需的最小采樣帶寬
(1)模擬信號(hào)的頻率范圍是0~4kHz
(2)模擬信號(hào)的頻率范圍是2~4kHz
3.名詞解釋
(1)量化誤差
(2)直方圖
(3)白平衡
(4)MMX
4.寫(xiě)出下面幾種格式中用到的壓縮技術(shù)
(1)JPEG
(2)MPEG2
(3)MP3
高通筆試題
1. Can you describe the trend of wireless mobile communication industry? ( 2000 letters)
2. Compare the major third generation technologies.(2000 letters)
3. Describe the characteristics of Walsh function. Explain how to generate Walsh Function. (2000 letters)
4. List factors that will affect the capacity of forward and reverse links of a CDMA system. (2000 letters)
5. What are the differences between IS-95 A/B and cdma2000 1X? (2000 letters)
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