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Signals-and-systems Questions Set 37:

Quiz Mode

The period of the signal 14cos(7t) - 6sin(3t) is

4π/5

8π

2π

Not a periodic signal

Solution:

Find the value of 2·sgn(0)·d[0] + d[1] + d[45],

where sgn(x) is the signum function.

-2

Solution:

Find the Nyquist rate of the given signal f(t) = 5 sin 200πt cos 500πt.

500 Hz

200 Hz

1000 Hz

1400 Hz

Solution:

If the Laplace Transform of f(t) is F(s), what is the value of L{∫₀^t f(t) dt}?

F(1/s)

F(s)/s

s⋅F(s)

s⋅F(1/s)

Solution:

The function y(t) = log[x(t)] is:

Causal and linear

Non-causal and linear

Non-causal and non-linear

Causal and non-linear

Solution:

Which of the following is neither a power signal nor an energy signal?

Impulse function

Ramp function

Both 1 and 2

None of the above

Solution:

The unit impulse function ∂(t) is _____ of time t.

an odd function

an even function

an odd function with even amplitude

neither an even nor an odd function

Solution:

If L{f(t)} = F(s), then by the initial value theorem, what is the relationship between the limits of f(t) and F(s)?

lim(t->0) f(t) = lim(s->0) F(s)

lim(t->infinite) f(t) = lim(s->0) (s.F(s))

lim(t->0) f(t) = lim(s->infinite) (s.F(s))

lim(t->0) f(t) = lim(s->infinite) F(s)

Solution:

Consider three signals x(t), y(t), and z(t) with time periods t1, t2, and t3 respectively. Under what conditions are the three signals periodic?

When t1/t2 is rational

When t1/t2/t3 is irrational

When the ratios of the three time periods are irrational

When the ratios of the three time periods are rational

Solution:

A total of 30 equal-power users are to share a common communication channel by CDMA. Each user transmits information at a rate of 10 kbps via DS spread spectrum and binary PSK. The minimum chip rate to obtain a bit error probability of 10^-6 is:

1.3 * 10^6 chips/sec

2.9 * 10^6 chips/sec

1.9 * 10^6 chips/sec

1.3 * 10^6 chips/sec

Signals-and-systems Questions Set 37:

The period of the signal 14cos(7t) - 6sin(3t) is

Solution:

Find the value of 2·sgn(0)·d[0] + d[1] + d[45],

where sgn(x) is the signum function.

Solution:

Find the Nyquist rate of the given signal f(t) = 5 sin 200πt cos 500πt.

Solution:

If the Laplace Transform of f(t) is F(s), what is the value of L{∫₀^t f(t) dt}?

Solution:

The function y(t) = log[x(t)] is:

Solution:

Which of the following is neither a power signal nor an energy signal?

Solution:

The unit impulse function ∂(t) is _____ of time t.

Solution:

If L{f(t)} = F(s), then by the initial value theorem, what is the relationship between the limits of f(t) and F(s)?

Solution:

Consider three signals x(t), y(t), and z(t) with time periods t1, t2, and t3 respectively. Under what conditions are the three signals periodic?

Solution:

A total of 30 equal-power users are to share a common communication channel by CDMA. Each user transmits information at a rate of 10 kbps via DS spread spectrum and binary PSK. The minimum chip rate to obtain a bit error probability of 10^-6 is:

Solution:

Related Question Sets:

Related Topics:

Signals-and-systems Questions Set 37:

The period of the signal 14cos(7t) - 6sin(3t) is

Solution:

Find the value of 2·sgn(0)·d[0] + d[1] + d[45], where sgn(x) is the signum function.

Solution:

Find the Nyquist rate of the given signal f(t) = 5 sin 200πt cos 500πt.

Solution:

If the Laplace Transform of f(t) is F(s), what is the value of L{∫0t f(t) dt}?

Solution:

The function y(t) = log[x(t)] is:

Solution:

Which of the following is neither a power signal nor an energy signal?

Solution:

The unit impulse function ∂(t) is _____ of time t.

Solution:

If L{f(t)} = F(s), then by the initial value theorem, what is the relationship between the limits of f(t) and F(s)?

Solution:

Consider three signals x(t), y(t), and z(t) with time periods t1, t2, and t3 respectively. Under what conditions are the three signals periodic?

Solution:

A total of 30 equal-power users are to share a common communication channel by CDMA. Each user transmits information at a rate of 10 kbps via DS spread spectrum and binary PSK. The minimum chip rate to obtain a bit error probability of 10^-6 is:

Solution:

Related Question Sets:

Related Topics:

Find the value of 2·sgn(0)·d[0] + d[1] + d[45],

where sgn(x) is the signum function.

If the Laplace Transform of f(t) is F(s), what is the value of L{∫₀^t f(t) dt}?