Electronics and Communication Engineering Probability and Random Process Experiments

Additive White Gaussian Noise

1: If the one-sided power spectral density of AWGN is N0=4×10−9W/HzN_0 = 4 × 10^{-9} W/Hz, what is the autocorrelation Rn(0)R_n(0) at τ=0\tau = 0?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

2: What is the unit of autocorrelation Rn(τ)R_n(\tau) for a noise process measured in volts?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

3: At T = 290 K and bandwidth B = 2 MHz, what is the thermal noise power using kTB?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

4: What is the root mean square (RMS) thermal noise voltage across a 50Ω50 \Omega resistor with thermal noise power of 4×10−15 4×10^{-15} W?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

5: Which value best represents the autocorrelation Rn(τ)R_n(\tau) of AWGN for τ≠0\tau ≠ 0?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

6: For a lab-measured autocorrelation function Rn(τ)=1×10−9δ(τ)R_n(\tau) = 1×10^{-9} \delta(\tau), what is the corresponding two-sided power spectral density of the AWGN?
Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation

Explanation