Noise (electronics) | Radar signal processing

Noise figure

Noise figure (NF) and noise factor (F) are figures of merit that indicate degradation of the signal-to-noise ratio (SNR) that is caused by components in a signal chain. These figures of merit are used to evaluate the performance of an amplifier or a radio receiver, with lower values indicating better performance. The noise factor is defined as the ratio of the output noise power of a device to the portion thereof attributable to thermal noise in the input termination at standard noise temperature T0 (usually 290 K). The noise factor is thus the ratio of actual output noise to that which would remain if the device itself did not introduce noise, or the ratio of input SNR to output SNR. The noise factor and noise figure are related, with the former being a unitless ratio and the latter being the same ratio but expressed in units of decibels (dB). (Wikipedia).

Noise figure
Video thumbnail

Sound vs. Noise: What’s the Actual Difference? (Part 1 of 3)

Noise and sound are not the same thing… really, they aren’t! What exactly is noise? Part 2 of 3 - https://youtu.be/XhFhK97hrdY Part 3 of 3 - https://youtu.be/yTyYZFcxGGQ Read More: Signal-to-Noise Ratio and Why It Matters https://www.lifewire.com/signal-to-noise-ratio-3134701 “You

From playlist Seeker Plus

Video thumbnail

Sound waves interference!

In this video i demonstrate sound waves interference and standing waves from loudspeaker used sound sensor. The frequency on loudspeaker is about 5500Hz. Enjoy!!!

From playlist WAVES

Video thumbnail

What is Sound? - Quickly Discover What Sound Really Is

What is Sound? This simple demonstration visually shows how sound waves are produced from a vibrating surface. A frequency generator is hooked up to a power amplifier, and the resultant signal is used to drive a loudspeaker. The signal is also sent to an oscilloscope. After listen

From playlist Physics Demonstrations

Video thumbnail

Waves 3_4 Interference

Intensity and sound levels.

From playlist Physics - Waves

Video thumbnail

Show Me Some Science! Speed Of Sound

Sound is a wave which travels through the air at about 330 m/s. The Little Shop of Physics Crew dances to the music together. When spread out along the track, it takes about a third of a second for the sound to travel from the first person to the last. The crew is blindfolded, so there are

From playlist Show Me Some Science!

Video thumbnail

Physics - Mechanics: Sound and Sound Waves (7 of 47) Sound Intensity

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basics of the intensity of sound (speaking, whisper, and screaming!).

From playlist MOST POPULAR VIDEOS

Video thumbnail

Waves 3_7 Intensity and Sound Level

Intensity and sound levels.

From playlist Physics - Waves

Video thumbnail

Waves 4_2 Sources of Musical Sounds

Problems dealing with musical sounds.

From playlist Physics - Waves

Video thumbnail

EEVblog #528 - Opamp Input Noise Voltage Tutorial

Dave explains one of the most confusing parameters in an opamp datasheet, Input Noise Voltage Density, that mysterious nV/RootHz figure. Along with different types of opamp noise, corner noise frequency, and how to calculate output noise spectral density. And how to use a Dynamic Signal An

From playlist Opamps - Tutorials & Practicals

Video thumbnail

MagLab User Summer School: The Physics of Noise and Musings of Experimental Errors

This video was recorded in 2016 at the National MagLab’s annual User Summer School, where early-career scientists learn from lab experts best practices for conducting experiments at the lab. For more information, please visit https://nationalmaglab.org/user-summer-school

From playlist User Summer School Talks

Video thumbnail

Waves 3_5 Interference

Intensity and sound levels.

From playlist Physics - Waves

Video thumbnail

EEVblog #605 - Fig.8 & Cardioid Microphone Patterns

Doug Ford, former head designer from Rode Microphones continues with Part 2 of the microphone technology series by explaining the construction of noise cancelling Figure 8, cardioid, and hyper cardioid microphones. Also, how the polar patterns and responses relate to the physical construct

From playlist Microphone Technology & Design

Video thumbnail

EEVblog #572 - Cascading Opamps For Increased Bandwidth

Fundamentals Friday. Dave explains Gain Bandwith Product and how it's possible to increase your system bandwidth by cascading opamps in series. Also, a discussion on the associated noise issues. A breadboard example shows how variable GBWP can be, and how it can relate to distortion. Opamp

From playlist Opamps - Tutorials & Practicals

Video thumbnail

EEVblog #594 - How To Measure Power Supply Ripple & Noise

Fundamentals Friday Dave explains what the ripple and noise specifications on a power supply is and how to measure it using different methods on both analog and digital oscilloscopes. From bad techniques through to good, showing the effect of each one. Traps for young players aplenty in th

From playlist Fundamentals Friday

Video thumbnail

Stanford CS230: Deep Learning | Autumn 2018 | Lecture 2 - Deep Learning Intuition

Andrew Ng, Adjunct Professor & Kian Katanforoosh, Lecturer - Stanford University https://stanford.io/3eJW8yT Andrew Ng Adjunct Professor, Computer Science Kian Katanforoosh Lecturer, Computer Science To follow along with the course schedule and syllabus, visit: http://cs230.stanford.

From playlist Stanford CS230: Deep Learning | Autumn 2018

Video thumbnail

EEVblog #1118 - Why Are Studio Monitors Noisy?

Why do many powered studio monitor speakers have a low level audible background noise? This is an issue with many big and popular brand monitors like KRK, Yamaha, JBL, Alesis and many others, even top end brands like Focal. Time for some investigation on the KRK Rokit 6 studio monitor spe

From playlist Audio & Speakers

Video thumbnail

Stanford Webinar - Talent Management: From Startup to Scaleup

Behind every successful organization are passionate, committed employees. As a hiring manager, how do you ensure that you’re attracting and retaining the right talent? This webinar will teach you how to tailor your hiring decisions for each stage of the company lifecycle, from startup to

From playlist Stanford Webinars

Video thumbnail

Ippei Obayashi (3/30/22): Stable volumes for persistent homology

Persistent homology is a powerful tool to characterize the shape of data quantitatively using topology. A persistence diagram (or barcode) is the output of persistent homology. The diagram is a scatter plot on the X-Y plane, and each point on the diagram called a birth-death pair correspon

From playlist AATRN 2022

Video thumbnail

Lecture 16 - Independent Component Analysis & RL | Stanford CS229: Machine Learning (Autumn 2018)

For more information about Stanford’s Artificial Intelligence professional and graduate programs, visit: https://stanford.io/2ZdB2p8 Andrew Ng Adjunct Professor of Computer Science https://www.andrewng.org/ To follow along with the course schedule and syllabus, visit: http://cs229.sta

From playlist Stanford CS229: Machine Learning Full Course taught by Andrew Ng | Autumn 2018

Related pages

Figure of merit | Decibel | Boltzmann constant | Frequency | Bandwidth (signal processing) | Friis formulas for noise | Power gain | Noise (electronics) | Signal-to-noise ratio | Gain (electronics) | Effective input noise temperature | Heterodyne | Noise power | Image frequency | Noise temperature