How Does a Doppler Shift Affect Digital Communications?

  Рет қаралды 3,681

Iain Explains Signals, Systems, and Digital Comms

Iain Explains Signals, Systems, and Digital Comms

10 ай бұрын

Explains how a Doppler Shift affects the successful reception of digital communication signals, using a BPSK example.
Check out my 'search for signals in everyday life', by following my social media feeds:
Facebook: profile.php?...
Instagram: / iainexplains
Related videos: (see iaincollings.com)
• What are Doppler Shift, Doppler Spread, and Doppler Spectrum? • What are Doppler Shift...
• What is a Matched Filter? • What is a Matched Filter?
• OFDM and the DFT • OFDM and the DFT
• What is a Cyclic Prefix in OFDM? • What is a Cyclic Prefi...
• How does OFDM Overcome ISI? • How does OFDM Overcome...
• Why is the OFDM Symbol Prefix Shorter in 5G Mobile and 802.11ac WiFi? • Why is the OFDM Symbol...
• How are OFDM Sub Carrier Spacing and Time Samples Related? • How are OFDM Sub Carri...
• Why is Subcarrier Spacing Bigger in 5G Mobile Communications? • Why is Subcarrier Spac...
• What is Pulse Shaping and the Square Root Raised Cosine? • Pulse Shaping and Squa...
• What are Flat Fading and Frequency Selective Fading? • What are Flat Fading a...
• What are Fast Fading and Slow Fading? • What are Fast Fading a...
• What are Decibels and why are 3dB and dBm important? • What are Decibels and ...
• What is Rayleigh Fading? • What is Rayleigh Fading?
• What is Rician Fading? • What is Rician Fading?
For a full list of Videos and Summary Sheets, goto: www.iaincollings.com

Пікірлер: 16
@christophercortes9152
@christophercortes9152 10 ай бұрын
Good content as always Iain, good start to my morning :)
@iain_explains
@iain_explains 10 ай бұрын
That's great to hear. I'm glad you like the channel.
@vikramgaud6276
@vikramgaud6276 10 ай бұрын
Thank you, sir, for one more video. In each video, you try to explain the concept from the basic level. Here also, you covered each line of your explanation, which is the good part.
@iain_explains
@iain_explains 10 ай бұрын
I'm glad you like the approach I take in my videos.
@user-sg8
@user-sg8 10 ай бұрын
Thanks for the video, sir. Could you do a video on the introduction to space-time coding?
@iain_explains
@iain_explains 10 ай бұрын
Thanks for the topic suggestion. I've added it to my "to do" list.
@maazawan7629
@maazawan7629 10 ай бұрын
Beautiful explanation sir! However to cater for doppler shift in a single carrier FSK system, we keep our receiver filter bandwidth greater than the channel BW+max doppler shift in frequency due to relative motion of the communicating nodes. That also tends to reduce the SNR because we now need a wider BW of receive filter leading to an increased noise floor. However your intuitive and picture perfect theoretical explanation really nailed it. Keep making these videos. Best Regards
@iain_explains
@iain_explains 10 ай бұрын
Thanks for your comment. I'm glad you like the videos.
@tylersweat4098
@tylersweat4098 10 ай бұрын
Great explanation of how doppler affects a signal! What would be the best way to simulate a Doppler shift on an OFDM signal?
@iain_explains
@iain_explains 10 ай бұрын
Great question. I've already recorded a video on the effect of the sinc function on OFDM, but I haven't had time to edit and upload it yet. Keep and eye out over the next couple of weeks.
@tuongnguyen9391
@tuongnguyen9391 10 ай бұрын
Can you do a video on the concept of "Age-of-information (AoI)" ?
@iain_explains
@iain_explains 10 ай бұрын
Thanks for the suggestion. I've put it on my "to do" list.
@plastilinovbly
@plastilinovbly 3 ай бұрын
Great video! Like and comment as usual to support the channel:)
@iain_explains
@iain_explains 3 ай бұрын
Thanks for supporting the channel.
@plastilinovbly
@plastilinovbly 3 ай бұрын
Like and comment to support the channel:)
@iain_explains
@iain_explains 3 ай бұрын
Thanks. I appreciate it.
Can You Double the Data Rate by Doubling Transmit Power?
4:19
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 1,4 М.
What is OTFS? Orthogonal Time Frequency Space Modulation ("Best video in youtube for OTFS")
17:05
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 12 М.
The child was abused by the clown#Short #Officer Rabbit #angel
00:55
兔子警官
Рет қаралды 25 МЛН
Heartwarming: Stranger Saves Puppy from Hot Car #shorts
00:22
Fabiosa Best Lifehacks
Рет қаралды 21 МЛН
Дарю Самокат Скейтеру !
00:42
Vlad Samokatchik
Рет қаралды 1,9 МЛН
Дибала против вратаря Легенды
00:33
Mr. Oleynik
Рет қаралды 5 МЛН
What are Doppler Shift, Doppler Spread, and Doppler Spectrum?
14:05
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 23 М.
How is Data Sent? An Overview of Digital Communications
22:23
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 39 М.
Beamforming in Wireless Communications: Basics and Applications
41:51
Mobile Standards Evolution: FDMA, TDMA, CDMA, OFDMA
15:47
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 33 М.
LEO Satellite Networks: Brief Introduction to Communications Challenges
17:46
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 7 М.
What is SC-FDMA? And why is it used for the Uplink of 4G/5G Mobile?
11:14
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 8 М.
How FM Radio Works: A History and Exploration of Frequency Modulation
34:24
Broadcast Blueprint
Рет қаралды 2,5 М.
Aliasing Ambiguity Explained
15:07
Iain Explains Signals, Systems, and Digital Comms
Рет қаралды 6 М.
Pulse-Doppler Radar | Understanding Radar Principles
18:39
The child was abused by the clown#Short #Officer Rabbit #angel
00:55
兔子警官
Рет қаралды 25 МЛН