### Safwan Arekat (@Safwan)

About DSP:"I was getting close to where I could see the truth. Someday I'll be brave enough to speak it" Ponyboy, 1967 novel "The Outsiders"About Life:Religion...

Hello Cedron,Yeah.. I guess I am still influenced by academic prejudice. But your opinion is taken to heart, and so is Rick's.Still, there ought to be "authoritative...

Hi Kaz,Yes Kaz, I agree. All the cases you mentioned in Matlab depend on the Fourier theorems. Other bases like using, for example, the discrete Walsh functions...

Hello Rick Lyons,I gave it some more thought since last night. I must have stumbled upon a version of the Sampling Theorem, one that is applied to periodic transforms...

Hello Rick Lyons,Thank you for your reply. Your question about the "Frequency Sampling Method" has much merit to it. I have not read the book, but I remember the...

Rick Lyons Dear Sir, Firstly, I am honoured you saw fit to reply to my post. I have learned much from your expertise over the past couple of years, and from your...

Hello All,Considering the availability of mature and and advanced linear phase FIR filter design techniques, many might look sideways at "novel claims" for filter...

Hi Kaz. Wholeheartedly! When concerned with obtaining the frequency response of an FIR, say for an engineering project, I myself have used nothing but the...

Hi Kaz, For some reason I was unable to edit my post here. Maybe because of the figures. Please inspect the attached file IR Example.pdf , it has an example and...

Wow! Did not know you could do that on twitter. So, your demonstration even corrected what I said earlier! The phasors do not need to be anti-aligned for quenching...

Hi Kaz. Granted, in digital filtering, there is no alternative that comes even close to the DTFT model. I never claimed this. But I was just trying to re-arrange...

Hi DanBoschen, The complex phasor concept, with n-fold whole rotations depending on z^-n (I did not realize this), surely adds the dimension needed to cover asymmetrical...

I read and downloaded your post "Second Order Discrete-Time System Demonstration". It makes the subject so much more approachable to those not familiar with it,...

Hello All,As soon as my early adulthood passion for electrical engineering re-asserted itself, post-retirement, and after decades of teaching and researching physics,...

Dear CharlieRader, I stand corrected. I did not see your point initially. The two zeros in the numerator will add a linear phase shift. Apologies for my earlier...

CharlieRader, thanks for your reply. You're right of course. But this does not detract the uniqueness of H(z) due to the perfect pole-zero cancellation of these...

Hi Neil,Thank you so much for taking the time to check the filter vs. the standard Butterworth. You simulation is very clear and your conclusion makes a lot of...

Hello All, I think I developed a method for obtaining IIR low-pass filters. It relies on all-pole z-domain transfer functions. The design is directly made...

You're right. RF engineers have no need for photon processing. At these frequencies, and with the very large numbers of photons involved, the RF electromagnetic...

The sensation of colour as decoded by the cone cells in the retina depends on the light photon energy, which is a quantum mechanical effect. The photon gives up...

Hi Kaz, I tried to reply to your first question, but for some reason it was not posted. The replies regarding the interference of different light waves are correct...

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