sorry i ve gone very busy so i cudnt continue i will give u some last yr questions of EC.
SUGGESTION: For interview only basics can save you. if u are not able to answer a standard question you will be forgiven, but if you miss a fundamental question only god can save you.
- formula of DFT
- Sampling thm.
- peroidicity of DFT.
- Y(w) = exp(jw), interpret it.
- how does FFT reduces computational complexity.
- convolution formula nd does it apply to all kind of system, if not write convolution formula for LTV system (Answer is in oppenhiem & wilsky).
- Define LTV system, give examples
- spectrum of white noise.
- two systems were given, cascaded, transfer func in z domain, find net impulse response.
- Relation between i/p & o/p PSD.
- Nyquist rate in practical systems.
- draw voltage divider bias, why its called so, how u will increase bandwidth in dis ckt.
- range of visible light(frequency)
- waveform of bsk.
- a bit stream was given, draw qpsk
- how will u find B.W of a signal.
- Define probability. (dnt give formula of probability i.e fav. otcome divided by total, there are three definitions of probabilty, find in any standard book)
- Define Random variable.
- what are stochastic process.
- graph & laplace ofsome basic signals.
- What is need of VLSI.
then
brush up ur basics in semiconductor physics from streetman & banerjee
Analog basics (gain , operating pt. op amps, biasing)
Digital basics, special focus on RC ckts.
if i will get time i will arrange some more questions from other syudents.
Best wishes