Thermal noise occurs in all transmission media and communication equipment, including passive devices. It arises from random electron motion and is characterized by a uniform distribution of energy over the frequency spectrum with a Gaussian distribution of levels.
An occluded front is formed when a cold front overtakes a warm front. and usually form around mature low-pressure areas. The cold and warm fronts curve naturally poleward into the point of occlusion, which is also known as the triple point.
A Cold Front has Cold Air, that means you can expect a Temperature drop from this front. Most of the time, when a Cold Front passes over warm areas, you can expect storms to p â¦ op up along this front. A cold front will usually bring cooler weather with a sharp change in wind direction and clearing skies.