Noise Figure Tutorial

Learn about Noise Figure, Noise Factor and cascaded noise figure with interactive flash programs

 

HINT: If program is too big for screen click mouse in program then push "CTRL" and spin mouse wheel at the same time... or push F11 for full screen.

Learn about Noise Figure, Noise factor and how to calculate the cascaded noise figure of a system.

Follow the programs in the table below to learn these items.

If you first want a background tutorial on thermal noise and the properties of uncorrelated noise sources : click here

Flash Program Description

Noise Figure Programs

Tutorial 1

Learn about Noise Figure by inspecting the input signal and noise spectrum and output signal and noise spectrum on an amplifier. Vary the Noise Figure/ Noise Factor , signal bandwidth and amplifier gain to see how the signal to noise ration is effected. This tutorial emphasizes the frequency domain.

Click here

pic1

(approx 4 M )

Tutorial 2

Learn how to calculate the Noise figure of a system with cascaded amplifiers.

Click here

pic2

(approx 4 M)

Tutorial 3

Gain further insight into noise figure and signal to noise ratio by looking at the amplifier input and output in the time domain

Click here

pic3

(approx 3 M )