Applications of Noise Figure
Let us see the applications of Noise Figure :
- Noise Figure is used in communication systems to quantify the effect of noise. SNR is used to study the degradation whereas Noise Figure is used to quantify this degradation and understand the performance of different systems.
- Noise Figure is used in satellite communication. Since noise figures can help to compare the effect of noise in a system, it is often used to study how reliable a satellite is for long-distance communication from Earth to space and vice-versa.
- Noise Figure is used in medical imaging in hospitals. This involves using them in MRI and ultrasound where machines are used to detect even small weak signals generated by the human body.
- Noise Figure is used in different scientific instruments like spectrum analyzers, oscilloscopes, and particle detectors. Noise Figure is made minimum to control the sensitivity of these devices.
- Noise Figure is used in optical communication and radio frequency communication. The receivers used in optical communication are sensitive therefore noise figure is used to study how accurately these devices can generate signals.
Noise Figure
Often while dealing with signals in electronics and communication systems, we encounter distortion in signals due to noise. Noise is an unwanted disturbance that can attenuate our signal which disrupts making it difficult to study the signals. In this article, we will study the noise figure which is an important instrument used for measuring the quality of signals.
Later, we will understand the work behind calculating the noise figure. Through a diagram, we will also see the formula used for calculating noise figures with a physical understanding of the formula. Some solved examples have been provided to enhance the understanding of readers about the topic. We will look at the advantages, disadvantages, and applications of noise figures in the real world. In the end, we will conclude the article with some frequently asked questions that readers can refer to
Table of Content
- Noise Figure
- Working Principle
- Mathematical Expression
- Construction
- Solved Examples
- Applications
- Advantages
- Disadvantages