通信原理练习题05.doc-综合文档
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Chapter5
1. Assume there are four overall transfer functions of the baseband transmission
systems shown as Fig.5.1, if it should transmit the digital signals with symbol
rate 2/Ts Baud, please illustrate whether they can guarantee the transmission
without ISI?
2. Assume the overall transfer characteristic of a baseband transmission system is
shown as Fig. 5.2. Where, is a constant. ( )
(1) Find .
(2) When symbol rate is , does it exist ISI at the sampling instant?
(3) Find the rate of frequency band utilization of the system.
Solution:
解 ：（ 1 ） can be seen as the difference between two triangle
characteristics,
Where
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