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zero pad interpolation
Interpolation and 'Zero padding + filtering' are one and the same, they are just two means of achieving the same thing.
Zero padding alone will not increase sampling frequency, you need to pass the zero padded samples though a low pass filter to get the higher sampled...
Hard detection receives input in the form of '0' and '1', hence the name 'hard'.
Whereas Soft detection can work on input having many levels.
Soft detectors perform better than Hard detectors but at the cost of more complexity.
take a look at the above thread where the difference is explained...
Alias concept in DSP
Aliasing in the context of signal processing is a direct inference from the Nyquist sampling theorem.
The Nyquist theorem states that any continuous time signal which is band-limited to a frequency Fc can be reproduced from its discrete samples if it is sampled at a rate...
The underlying philosophy of both time domain and frequency domain equalizers are the same - to equalize the channel frequency response, but the latter achieves the job in the frequency domain.
In a frequency domain equalized system the reference signal (pilot) is usually sent in the frequency...
If I understand your Question correctly - you are asking how to generate a noise signal with a specific noise variance [Standard Deviation = sqrt(variance)].
if 'No' is the required noise variance then the following Matlab code will generate a noise stream with variance of No.
noise_stream =...
Re: Fm/ Am
An interesting problem.
From what I know, if conventional Demodulation techniques are used for demodulating AM and FM, the demodulation of one Modulation results in the loss of the other modulation technique. This eliminates cascading demodulation techniques.
Therefore, both...
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