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110年 - 110 國立中央大學_碩士班招生考試_通訊工程學系：通訊系統#110494
> 申論題
題組內容
3. [15%] For M-ary PSK, the transmitted signal with equal probability is of the form
(b) Please sketch the observation space and show the optimal partitioning of the observation
相關申論題
(a) Please briefly describe what the scenario is in communications to have such a model. (5%)
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(b) Please write the transfer function of the system. (5%)
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(c) Please write the impulse response of the system. (5%)
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(d) If y(t) is further processed to have the output z(t) for recovering x(t), please draw the processing structure. (5%)
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(a) Write the expression for y(t) in terms of m(t), cos(·), ωc, and t. (5%)
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(b) Describe the filter that yields an AM signal for g(t). Give the necessary filter type and the frequencies of interest. (5%)
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(c) What is the value of M to yield a modulation index of 0.2? (5%)
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(a) Find a set of basis functions for this signaling scheme. What is the dimension of the signal space? Express si(t) by the form of the data vector, in terms of these basis functions and the mathematical symbols in the above expression. (5%)
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(c) Please sketch a block diagram of the optimal (minimum symbol error probability) receiver for M=8.(5%)
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(a) Write the expression of the spectrum of y(t) in terms of.(10%)
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相關試卷
110年 - 110 國立中央大學_碩士班招生考試_通訊工程學系：通訊系統#110494
110年 · #110494
110年 - 110台灣聯合大學系統_碩士班招生考試_電機類:通訊系統(通訊原理)#105574
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