Essentials of Signals & Systems: Part 2

Iain Explains Signals, Systems, and Digital Comms

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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.iaincolling...)
• 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.iaincolling...

Опубликовано:

29 сен 2024

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Комментарии : 30

@zeroxdan 6 месяцев назад

thank you for this :)

@iain_explains 6 месяцев назад

You're welcome 😊

@uncleroq Год назад

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

@iain_explains Год назад

I'm so glad to hear that.

@lakshmikandula634 11 месяцев назад

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

@iain_explains 11 месяцев назад

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

@adeddy8138 10 месяцев назад

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

@iain_explains 10 месяцев назад

I'm glad you found it helpful.

@AM-tu1rc Год назад

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 Год назад

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

@fifaham Год назад

Thank you very much Iain, very helpful lecture.

@iain_explains Год назад

Glad it was helpful!

@vsw1131 Год назад

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 Год назад

Yes, you could perform NOMA on each subcarrier.

@divyanshmittal772 Год назад

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 Год назад

These videos might help: "Sampling Signals" ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-AcuQnIXiZ2A.html , "Sampling Signals: Introduction Lecture" ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Ftj3pQmyvuY.html , and "Discrete / Fast Fourier Transform DFT / FFT of a Sinusoid Signal" ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-lwQTNcWtN7w.html

@ZaidKhan-kv8ok Год назад

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 Год назад

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

@leocmen 10 месяцев назад

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

@iain_explains 10 месяцев назад

You are very welcome

@daviddima8598 Год назад

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 Год назад

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 Год назад

You are totally right!👌