Frequency Domain Interpretation of Sampling
http://AllSignalProcessing.com for more great signal-processing content: ad-free videos, concept/screenshot files, quizzes, MATLAB and data files. Analysis of the effect of sampling a continuous-time signal in the frequency domain through use of the Fourier transform.
From playlist Sampling and Reconstruction of Signals
Physics demonstrations. Polarisation of microwaves
This video shows how you can use a microwave transmitter and receiver to investigate the polarisation of microwaves. Plane polarised waves are emitted by the transmitter and If you measure the angle of the filter and record the intensity at the receiver you can then show.
From playlist WAVES
Transverse and longitudinal waves: fizzics.org
An introduction to waves, transverse and longitudinal waves and the electromagnetic spectrum. Including wavelength, amplitude and frequency. Suitable for 14 to 16 physics students and a reminder for more advanced courses.
From playlist The electromagnetic spectrum and waves
Physics 50 E&M Radiation (2 of 33) Frequency and Wavelength
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain electromagnetic radiation in terms of frequency and wavelength. Next video in series: http://youtu.be/t6EnTtkG4hA
From playlist PHYSICS 50 ELECTROMAGNETIC RADIATION
Introduction to Frequency Selective Filtering
http://AllSignalProcessing.com for free e-book on frequency relationships and more great signal processing content, including concept/screenshot files, quizzes, MATLAB and data files. Separation of signals based on frequency content using lowpass, highpass, bandpass, etc filters. Filter g
From playlist Introduction to Filter Design
CIFAR Massey Talk 2018: Solving the Mystery of Fast Radio Bursts
The distinguished McGill astrophysicist Victoria Kaspi excels at solving the mysteries of the cosmos – and in the strange phenomenon known as fast radio bursts (FRBs), she’s found one of her most challenging cases yet.
From playlist Fast Radio Bursts Playlist
GRCon20 - Software defined radio based Synthetic Aperture noise and OFDM (WiFi) RADAR mapping
Presented by Jean-Michel Friedt, and Weike Feng at GNU Radio Conference 2020 https://gnuradio.org/grcon20 Software defined radio based Synthetic Aperture noise and OFDM (WiFi) RADAR mapping (Main Track) [application] Session Chair: Jean-Michel Friedt, FEMTO-ST/Time & Frequency We demonst
From playlist GRCon 2020
What are Fast Radio Bursts? | The Royal Society
Fast Radio Bursts (FRBs) are short (few millisecond) bursts of radio waves observed from cosmological distances. Their origin is presently unknown, yet their rate is many hundreds per sky per day, indicating a not-uncommon phenomenon in the Universe. In this talk, Professor Kaspi reviewed
From playlist Latest talks and lectures
Apollo Comms Part 10: Apollo SDR Reboot
We use an SDR radio to talk to our Apollo transponder. Apollo Comms Playlist: https://www.youtube.com/watch?v=v49ucdZcx9s&list=PL-_93BVApb58SXL-BCv4rVHL-8GuC2WGb Balint and Austin ISEE-3 Reboot SDR presentation: https://www.youtube.com/watch?v=NTljlMH-0oM Links to doc: https://www.curi
From playlist Space Hardware
4 Unidentified Sounds | What the Stuff?!
Have you ever heard the Taos Hum, or detected a signal from space? What the heck is that radio tower in Russia doing? Learn more about the world’s most mysterious noises. 10 Unidentified Sounds: http://science.howstuffworks.com/science-vs-myth/unexplained-phenomena/10-unidentified-sounds.
From playlist Stuff About Technology
Apollo Comms Part 11: Missing PM Transmitter Found!
We found our missing S-band transmitter! Can we make it work? Apollo Comms Playlist: https://www.youtube.com/watch?v=v49ucdZcx9s&list=PL-_93BVApb58SXL-BCv4rVHL-8GuC2WGb Links to doc: https://www.curiousmarc.com/space/apollo-s-band-communications https://virtualagc.github.io/virtualagc/Q
From playlist Space Hardware
Frequency domain – tutorial 3: filtering (periodic signals)
In this video, we learn about filtering which enables us to manipulate the frequency content of a signal. A common filtering application is to preserve desired frequencies and reject the unwanted content. The learning objectives are to: 1) review the filtering concept using Fourier series
From playlist Fourier
Pulsars | Introductory Astronomy Course 8.10
Welcome to Astronomy: Exploring Time and Space, a course from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona. Learn about the foundations of astronomy in this free online course here on YouTube. This video is part of module 8, Stars. Want t
From playlist Introductory Astronomy Module 8: Stars
GRCon19 - Exponent: Arbitrary Bandwidth Receiver Architecture by Dana Sorensen
Exponent: Arbitrary Bandwidth Receiver Architecture by Dana Sorensen, Jake Gunther, Colton Lindstrom This paper presents an architecture for receiving arbitrarily wide bandwidth signals using multiple narrowband receivers. Information contained in overlapping spectral regions provides the
From playlist GRCon 2019
Data-Driven Control: Error Bounds for Balanced Truncation
In this lecture, we derive error bounds for the balanced truncation. https://www.eigensteve.com/
From playlist Data-Driven Control with Machine Learning
Radio - HAM - Antenna: DIY quarter wave ground plane antenna
How to make a quarter wave vertical 2 meter ground plane antenna. Parts for project: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=9 In this video I go through the build of a UHF / VHF (146 MHz) quarter wave ground plane antenna that can be used for repeater communications. Th
From playlist Consumer Radio - HAM / Amateur Radio - Antennas
Part 7 of a series on electromagnetic radiation: Absorption of EM radiation - explains how radiation of different frequencies is absorbed including reflection, molecular oscillations, Electron excitation, Photoelectric effect, Compton effect (including deriving the Compton formula) and pai
From playlist Electricity & Magnetism
Oscilloscope VS Television - the CRT
Why is a TV able to have a wide screen while oscilloscopes continued to have narrow screens? This explains the cathode ray tube (CRT) and time measurement that keeps it working. The picture size is smaller on an oscilloscope as it uses an electrostatic system and this is good for accuracy
From playlist Electromagnetic Induction
Understanding Modulation! | ICT #7
Modulation is one of the most frequently used technical words in communications technology. One good example is that of your FM radio, where FM stands for frequency modulation. In this video we are going to learn the basics of modulation techniques and see how they are applied in modern ce
From playlist Internet & Telecommunication Technology