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DRDO Questions for ECE 2008
There where five members in my panel...
They asked my area of interest I said
1) Communication theory
2) EMT
3) Signal processing
4) Wireless Communication
First
He asked me about project?
My project was about channel estimation there was nearly 10 question about that.

Second a lady (Signal processing)
1) Can you write the difference equation?
2) What is causal system and non causal system?
3) What is ideal filter is that realisable if not why?
4) What is windowing? What windowing u will prefer?
5) For steep cut off what window u will prefer?
6) How will you convert a analog filter to digital filter?
7) What transformation you will use to convert to digital filter why not others?
8) What is FIR and IIR filter
9) For a system to be simple what filter u will choose (IIR or FIR) and why?
10) What filter will produce linear phase?

Communication:
1) What will be the circuit to amplify micro volt signal?
2) What is gain bandwith product?
3) What is opamp?
4) What is the gain and BW of opamp?
5) What type of circuit does opamp have?
6) What is CMRR and why its important?
7) Why practical opamp does not have infinite BW?
8) When doppler shift can seen in a signal?
9) When tx is fixed and receiver moves what will be the doppler shift and vice versa?
10) I am receiving a signal from chandrayaan which is very noisy what you will do ?
some question about 8085:
1) What are the registers in 8085?
2) What are the interrupts in 8085?
3) Priority of these Interrupts?
4) How will you find the interrupt address?

I attended in Nov 22 2008. Now waiting for interview result.




  
Total Answers and Comments: 0 Last Update: November 24, 2008     Asked by: mathiyazhagan123 
  
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