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DSP笔试题目
DSP题目
1.H(n)??a*h(n?1)+b*δ(n)
(1)求h(n)的z变换
(2)该系统是否为稳定系统
(3)写出FIR数字滤波器的差分方程
2.写出下面模拟信号所需的最小采样带宽
(1)模拟信号的频率范围是0~4kHz
(2)模拟信号的频率范围是2~4kHz
3.名词解释
(1)量化误差
(2)直方图
(3)白平衡
(4)MMX
4.写出下面几种格式中用到的压缩技术
(1)JPEG
(2)MPEG2
(3)MP3
高通笔试题
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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