Hi, Im an undergraduate student and I have researched how to estimate the direction of arrival of a signal using a FFT. I understand how to use...

Hi, Im an undergraduate student and I have researched how to estimate the direction of arrival of a signal using a FFT. I understand how to use it and how to implement the algorithm, but im unsure as to why when performing an FFT on spatially separated data this yields an angle? Thanks, Jan

Hello all, I have got the system transfer function of a two port network in frequency domain,the frequency range is from 2Ghz to 12GHz.IFFT is...

Hello all, I have got the system transfer function of a two port network in frequency domain,the frequency range is from 2Ghz to 12GHz.IFFT is used to get the time domain impulse response,but the result is complex ,not real.The impulse response of a system should be real.So,please give me some suggestions.thanks .

Hi, I'm designing a controller for a boost converter. I'm able to find a set of gains that fit for all situations, but I get a slow response at...

Hi, I'm designing a controller for a boost converter. I'm able to find a set of gains that fit for all situations, but I get a slow response at full-load. I was thinking instead of using gain scheduling, 1 set of gains for little to no load and 1 set of gain when load is significant (say more than 25% of the maximum load). Now my question. What are the gotchas about gain scheduling? In bo...

I can across a really old Fortran program with a subroutine that interpolates a 1D array of N samples to 3N samples. It uses a 5-point operator,...

I can across a really old Fortran program with a subroutine that interpolates a 1D array of N samples to 3N samples. It uses a 5-point operator, and the comments describe it as Bracewell method, spline approximation to sinc. I haven't seen this before. Bracewell's 1995 book on Two-Dimensional Imaging had a formula for 6 nearest points. Did he publish a formula for 1D interpolation with 5 po...

Microsoft is the question the answer is no!

Microsoft is the question the answer is no!

I just updated the Microsoft Word and PDF versions of my CV on my home page to reflect the fact that I got a Ph.D. at the end of May and to list...

I just updated the Microsoft Word and PDF versions of my CV on my home page to reflect the fact that I got a Ph.D. at the end of May and to list five new papers, but haven't yet updated the HTML version so I just deleted that for now. The direct link for the PDF version is http://www.nfld.com/~dalton/dalton-cv-web-2019.pdf Constructive criticism is welcome. Also I have put my Ph.D...

Some articles in the pop-science press appeared this week on the topic; so I traced down a paper by the researchers. Interestingly, I heard a...

Some articles in the pop-science press appeared this week on the topic; so I traced down a paper by the researchers. Interestingly, I heard a similar idea floated in the 1990's, but apparently nothing was published at the time. https://arxiv.org/abs/1411.7041 Steve

Yes I understand the theory, left handed and right-handed sequences. we can= have two z transfer functions the same but one is left hand sided...

Yes I understand the theory, left handed and right-handed sequences. we can= have two z transfer functions the same but one is left hand sided and the = other right. A great deal is spent explaining this but exactly what is the use in the fi= rst place of left-handed sequences as they are non-causal. I see in countle= ss book examples of sequences going backwards in time - find the z-transfe...

Greetings. I have been using neural networks and other machine learning tools for sometime time. Yesterday the following question popped up in...

Greetings. I have been using neural networks and other machine learning tools for sometime time. Yesterday the following question popped up in my mind however: Why do we use machine learning tools when we could achive similar results with plain interpolation? Let's assume a noise free regression scenario (not classification and no measurement errors). In the case of infinite samples and...

Hello comp.dsp, I don't know if this is common knowledge, but, out-of-the-blue, I received an email from Trine-Lise Allnore, Rune's sister, on...

Hello comp.dsp, I don't know if this is common knowledge, but, out-of-the-blue, I received an email from Trine-Lise Allnore, Rune's sister, on 17-Nov-2018 which I quote below. Hi. I saw your question about my brother Rune, at a forum on the net. You postet It about 4-5 years ago, so you may not remember it.. Well, he comitted suicide in January 2012. You and another member of the ...