Essentials of Signals & Systems: Part 2

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Iain Explains Signals, Systems, and Digital Comms

Жыл бұрын

An overview of some essential things in Signals and Systems (Part 2). It's important to know all of these things if you are about to take a final exam on the subject, or if you are wanting to perform signals analysis.
Part 1 can be found here: • Essentials of Signals ...
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Related videos: (see www.iaincollings.com)
• Sampling Signals • Sampling Signals
• What is Aliasing? • What is Aliasing?
• Aliasing Ambiguity Explained • Aliasing Ambiguity Exp...
• How to Understand Aliasing in Digital Sampling • How to Understand Alia...
• What is the Fourier Transform? • What is the Fourier Tr...
• What is the Fourier Transform used for? • What is the Fourier Tr...
• Fourier Transform Equation Explained • Fourier Transform Equa...
• Typical Exam Question on Fourier Transform Properties • Typical Exam Question ...
• Discrete Time Basis Functions • Discrete Time Basis Fu...
• How does the Discrete Fourier Transform DFT relate to Real Frequencies? • How does the Discrete ...
• Laplace Transform Equation Explained • Laplace Transform Equa...
• Laplace Transform Region of Convergence Explained • Laplace Transform Regi...
• What is the Z Transform? • What is the Z Transform?
• Z Transform Region of Convergence Explained • Z Transform Region of ...
• Is Phase important in the Fourier Transform? • Is Phase important in ...
For a full list of Videos and accompanying Summary Sheets, see the associated website: www.iaincollings.com

Пікірлер: 30

@AM-tu1rc Жыл бұрын

No one explains Signals & Systems as well as you do Professor! You give an excellent blend of both theory and examples to condense complex concepts into the core fundamentals.

@iain_explains Жыл бұрын

Thanks for your nice comment. I'm so glad you like the approach I've taken to explain the concepts.

@uncleroq Жыл бұрын

Thanks for the upload Professor. Signals and Systems never been more interesting!

@iain_explains Жыл бұрын

I'm so glad to hear that.

@fifaham Жыл бұрын

Thank you very much Iain, very helpful lecture.

@iain_explains Жыл бұрын

Glad it was helpful!

@zeroxdan 4 ай бұрын

thank you for this :)

@iain_explains 4 ай бұрын

You're welcome 😊

@leocmen 8 ай бұрын

Thank you so much for sharing your knowledge wth us. God bless you

@iain_explains 8 ай бұрын

You are very welcome

@amitpalkar934 Жыл бұрын

Excellent professor.

@iain_explains Жыл бұрын

Glad you think so!

@ZaidKhan-kv8ok Жыл бұрын

Hi Ian sir, most importantly huge gratitude to you for your service to all students who find telecommunication topics challenging. I had a request - can you make an explanatory video explaining each part of an OFDM radio transmitter (and maybe someday similarly Receiver) -> ifft, cp-addition,.dpd-cfr, calibrations, DAC, PAs etc till RF signal generation.

@iain_explains Жыл бұрын

Thanks for the suggestion. I'll add it to my "to do" list. I'm glad you like the channel.

@adeddy8138 8 ай бұрын

That actually covers everything thank you sir Except fft part which seens more less intuitive to me

@iain_explains 8 ай бұрын

I'm glad you found it helpful.

@sudiptoshyam Жыл бұрын

And as promised On Monday Thanks

@iain_explains Жыл бұрын

😁

@mq6605 Жыл бұрын

Thank you very useful lecture sir. please may I ask you to do a video about Rake Receiver.

@iain_explains Жыл бұрын

Thanks for the topic suggestion. It's on my "to do" list.

@mq6605 Жыл бұрын

@@iain_explains Thank you professor

@lakshmikandula634 9 ай бұрын

while converting CT frequencies to DT frequencies , you multiplied all CT frequencies with T except wm. can you please clarify this ?

@iain_explains 9 ай бұрын

Sorry, that's a typo. Thanks for letting me know. It should also be multiplied by T.

@vsw1131 Жыл бұрын

I don't know how to send a private message, but after watching your video about the NOMA system, teacher, I want to ask a question: What is the combination of NOMA and OFDM? I put forward such a conjecture: In the case of mutual cooperation between two users in a cell, 16QAM modulation technology is used to modulate the data onto each OFDM subcarrier (and the carriers are orthogonal to each other, there is no mutual interference), and then use NOMA's power multiplexing technology...... I would be very grateful if you could answer my question. thank you!

@iain_explains Жыл бұрын

Yes, you could perform NOMA on each subcarrier.

@divyanshmittal772 Жыл бұрын

1:00 to 2:00 could anyone please explain in details, How one continuous signal in TD got one output in FD and if sampled in TD then it is repeated in FD. Also please tell me how I can visualize this MATAB

@iain_explains Жыл бұрын

These videos might help: "Sampling Signals" kzfaq.info/get/bejne/d8mlhNF6vc--YnU.html , "Sampling Signals: Introduction Lecture" kzfaq.info/get/bejne/fNqaZtOC0t_apY0.html , and "Discrete / Fast Fourier Transform DFT / FFT of a Sinusoid Signal" kzfaq.info/get/bejne/ot2Bh7GUvNqyZ6s.html

@daviddima8598 Жыл бұрын

Hello. With all my respect, but I think there is a mistake when you drew the spectrum of the decimated signal. An N order decimation also implies that the signal spectrum is also expanded in an N factor right? So Wm should be now 2Wm. On the other hand, replicas still repeating every 2pi, not pi I think. Just my two cents 😊

@iain_explains Жыл бұрын

But I didn't draw the decimated signal! You'd be correct, if I'd drawn the "compressed" version of the sampled signal (ie. the "sampled" signal, but with the "zeros" removed). Also, I don't like the term "decimated", since this literally implies removing one sample in every ten. I much prefer to describe the process in two seperate steps - "sampling" and "compression".

@daviddima8598 Жыл бұрын

You are totally right!👌