answersLogoWhite

0

Thermal noise occurs due to the motion of millions of electrons in a object. Due to the central limit theorem, the total effect can be modeled as a Gaussian distributed random variable with zero mean and N_0/2 variance.

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

Does noise have a pattern?

So called "White Noise" is purely random. Noise that you hear that comes from from physical processes almost always has a pattern and is not white noise.


What does the shannon capacity have to do with communication?

It has to do with data communication. It is called the Shannon channel capacity theory where double the bandwidth equals double the highest data rate. This is of course theoretically and does not take into account white noise (thermal noise), impulse noise, attenuation distortion or delay distortion.


What does shannon capacity have to do with communications?

It has to do with data communication. It is called the Shannon channel capacity theory where double the bandwidth equals double the highest data rate. This is of course theoretically and does not take into account white noise (thermal noise), impulse noise, attenuation distortion or delay distortion.


If bandwidth of amplifier reduced then thermal noise in amplifier?

thermal noise willbe reduce


What is thermal agitation noise?

Thermal agitation noise, also known as thermal noise, is random electrical noise that is present in all electronic devices due to the movement of charged particles at room temperature. This noise can affect the quality of signal transmission and is an inherent limitation in electronic systems. Devices like resistors, capacitors, and semiconductors all generate thermal noise.


What is Another word for background noise?

White noise. A more general term would be "ambient sound" or "ambient noise", which may or may not be white noise. White noise is the combination of every sound frequency and so it is analogous to the color white, a mixture of all of the different frequencies of visible light. White noise is usually called static.


Types of internal noise?

1. Shot or Schottky noise 2. Thermal or Johnson noise 3. Partition noise.


How thermal noise is derived as KTB?

Thermal noise is derived as KTB where K is the Boltzmann constant (1.38 x 10^-23 J/K), T is the temperature in Kelvin, and B is the bandwidth of the system. This equation relates the power of thermal noise to the temperature and bandwidth of a system, with higher temperatures and wider bandwidths resulting in higher levels of thermal noise.


What is the difference between white Gaussian noise and additive white Gaussian noise?

A Gaussian noise is a type of statistical noise in which the amplitude of the noise follows that of a Gaussian distribustion whereas additive white Gaussian noise is a linear combination of a Gaussian noise and a white noise (white noise has a flat or constant power spectral density).


The amount of thermal noise is measured by?

Decible(dB)


What factors control the voltage of a Johnson noise source?

It is the bandwidth, the temperature, and the resistance. Look at the link: "Calculation of Noise voltage: Thermal noise".


When was Sound of White Noise created?

Sound of White Noise was created in 1993.