luckyvictor
Member level 4
Hi all
I have a question on the effect of ISI. As far as my understanding, the cause of ISI is due to the fact that symbol in time domain spreads, so it interferences with its neighbours, therefore causing the receiver makes incorrect decision.
However, this is what I don't understand. According to another material, it says in the frequency domain, we need to guarantee that the fourier transform of the sampled response is flat, why? what does it really mean please?
I have a question on the effect of ISI. As far as my understanding, the cause of ISI is due to the fact that symbol in time domain spreads, so it interferences with its neighbours, therefore causing the receiver makes incorrect decision.
However, this is what I don't understand. According to another material, it says in the frequency domain, we need to guarantee that the fourier transform of the sampled response is flat, why? what does it really mean please?