(Solved): AM demodulation (25 points) In the demodulation process, the aim is to proces ...

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AM demodulation (25 points) In the demodulation process, the aim is to process the received signal $$y(t)$$ in order to extract each of the symbols $$a=\left\{a_1,a_2,\dots ,a_K\right\}$$, and then the binary sequence $$b=\left\{b_1,b_2,\dots ,b_K\right\}$$. The demodulator system's main function is depicted in Fig. 3 Figure 3. AM demodulation system Derive the expression of: $$z(t),h(t)$$, and $$f(k,t)$$ as such $$a_k=((y(t)z(t))?h(t))f(k,t)$$ where * denotes the convolution operator. PS. Some conditions may apply.