DSP Quiz 2

Which signal is non-periodic?

• Power signal

• Energy signal

• Both a and b

• None of the above

The Z-transform of δ[n] is ________

• One

• Zero

• Finite

The quality of output signal from A/D converter is measured in terms of ___________

• Quantization error

• Quantization to signal noise ratio

• Signal to quantization noise ratio

• Conversion constant

Which bit coder is required to code a signal with 16 levels?

• 8 bit

• 4 bit

• 2 bit

• 1 bit

If x(n) is a discrete-time signal, then the value of x(n) at non integer value of ‘n’ is?

• Zero

• Positive

• Negative

• Not defined

The discrete time function defined as u(n)=n for n≥0;u(n)=0 for n<0 is an ___________

• Unit sample signal

• Unit step signal

• Unit ramp signal

• None of the mentioned

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

• tan(nθ)

• nθ

• tan-1(nθ)

• none of the mentioned

 $\sum_{n=-\infty}^{\infty}\left|x\left(n\right)\right|^2$  The signal given by the equation is known as __________

• Energy signal

• Power signal

• Work done signal

• None of the mentioned

A real valued signal x(n) is called as anti-symmetric if ___________

• x(n)=x(-n)

• x(n)=-x(-n)

• x(n)=-x(n)

• none of the mentioned

The odd part of a signal x(t) is?

• x(t)+x(-t)

• x(t)-x(-t)

• (1/2)*(x(t)+x(-t))

• (1/2)*(x(t)-x(-t))