What is the Laplace transform of e^at?

For attenuation of high frequencies, we should use:

Find the value of the integral f(t) = ∫ cos(t-2)δ(2t-4) dt, where the integration is from -∞ to +∞.

The inverse DTFT of X(e^jΩ) = jsin(4Ω) is:

If the inverse Laplace transform of F(s) is f(t), what is the inverse Laplace transform of s⋅F(s) provided f(0) = 0?

The type of systems in which the input and output can take any value within a particular set of values are called?

Which of the following statements about even signals is false?

Assertion (A): Free space does not interfere with normal radiation and propagation of radio waves

Reason (R): Free space has no magnetic or gravitational fields

A 10-bit shift register is used to generate the pseudorandom sequence in a DS spread spectrum system. The chip duration is T_c = m, and the bit duration is T_b = NT_c, where N is the length (period) of the m-sequence. If the required ε/J₀ for a tone jammer is 10 dB, and the jammer has an average power J_av, then the jamming margin is:

Match the following items from List I and List II.

List I

a. Amplitude modulation

b. Pulse Code Modulation

c. Frequency modulation

d. Double sideband suppressed carrier

List II

i. Pre-emphasis and de-emphasis

ii. Companding

iii. Envelope detector

iv. Balance modulator