Digital Signal Processing Practice Test 1

1. What is the period of cos2t+sin3t?

2. If x(n)=(0,1,2,3,3,0,0,0) then x(2n) is?

3. The Z-Transform X(z) of a discrete time signal x(n) is defined as ____________

4. Which of the following is the auto correlation of x(n)?

5. If x(n) is the input signal of a system with impulse response h(n) and y(n) is the output signal, then the auto correlation of the signal y(n) is?

6. The process of converting discrete-time continuous valued signal into discrete-time discrete valued (digital) signal is known as ____________

7. The block denoted as follows is known as __________

8. Zero-input response is also known as Natural or Free response.

9. The phase function of a discrete time signal x(n)=aⁿ, where a=r.e^jθ is?

10. If the sampling rate Fs satisfies the sampling theorem, then the relation between quantization errors of analog signal(eq(t)) and discrete-time signal(eq(n)) is?