Education in DSP (MSEE GA Tech) with 35 years of DSP experience in commercial, military and intelligence applications. Enjoy audio applications best, but have worked in a variety of application areas. Worked 7 years as a contractor, when contractor really meant something close to consultant and paid accordingly. Senior Member IEEE. Check out LinkedIn profile.

Re: Filter approach for helicopter application

Reply posted 2 months ago (05/28/2021)
You need to provide a little more information. 1) Is your objective to remove them from audio? 2) If so, audio transmitted to earphones, or sent out a microphone?...

Re: Is this time-domain aliasing?

Reply posted 2 years ago (05/27/2019)
Hi Rick,Very cool video. Watched it twice.Where is there relevant sampling being done to cause aliasing?Dirk

Re: time delay ---- frequency shift Fourier property

Reply posted 4 years ago (07/28/2017)
Not exactly. Look at the more general case.It is possible to have advances and delays whose lengths are the sum of integer and fractional numbers of samples, but...

Re: time delay ---- frequency shift Fourier property

Reply posted 4 years ago (07/26/2017)
You are not working with a time domain cosine signal that has repetitive equal periods. You are working with a linear swept tone that linearly increases in frequency...

Re: time delay ---- frequency shift Fourier property

Reply posted 4 years ago (07/26/2017)
Ida,(Minor correction: pi/3=1.047... is not a 1 second delay, 1 is a 1 second delay)Your problem isn't real signals.Your problem is your expectations.Your code for...

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