Science of FPV

Currently Playing: How the DJI FPV Video system works! (Air Unit, Vista and FPV drone)

Find out how analogue FPV works. This is the first in a series of videos explaining different FPV video systems. Subscribe for HDZero/Sharkbyte up next! AOS Drone Build Configurator: https://app.aos-rc.com/ My Engineering Work & Resources: Beyond YouTube, I am the founder and engineer behind AOS RC. Here is where you can find all the hardware, training, and professional services I provide: * AOS Frames & Motors: Browse my designs (https://www.aos-rc.com/designs) * Learn to Tune: Enrol in my online courses (https://www.aos-rc.com/courses) * B2B Consulting: Professional engineering support for your business (https://www.aos-rc.com/consulting) * Support the Channel: Get AOS merch (https://store.aos-rc.com/) or join my Patreon (https://www.patreon.com/cw/chris_rosser) or BuyMeACoffee (https://buymeacoffee.com/chrisrosser) to fund future testing. 0:00 Intro 0:34 Summary of the process 1:37 DJI Camera 2:23 MIPI Interface 4:09 Video encoding and compression summary 5:28 Compression Methods 5:58 Prediction for video compression 7:07 Intra frame prediction 9:48 Inter prediction or motion compensation 11:15 Residual Transformation 12:38 Quantisation 13:51 Luma and Chroma Data 14:42 Digital Video Transmission 16:29 OFDM link 20:36 Digital Interference and retransmission 21:54 Demodulation, decoding and display 22:32 Advantages and disadvantages of DJI's approach 24:25 Outro