I want to up-sample my input signal by a factor of $2$. I saw zero padding followed by low pass filter method being used in few cases. But still I need some help in this.
- Say I have $10$ input samples and my interpolating factor is $2$, then if I am doing interpolation using above method, will I get $20$ samples at the output?
- Also how to increase the pass-band gain of the low pass filter to $6.02\textrm{ dB}$?
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