Why is Dolph-Chebychev windowing relatively obscure?

Started by Eric in comp.dsp5 months ago 22 replies

Most software seems to focus on Hann, Hamming, and Blackman windowing. From the graphs I've seen, Dolph-Chebychev appears to outperform...

Most software seems to focus on Hann, Hamming, and Blackman windowing. From the graphs I've seen, Dolph-Chebychev appears to outperform them: https://en.wikipedia.org/wiki/Window_function#Dolph.E2.80.93Chebyshev_window Anyone know why it isn't featured in DSP texts to the extent of the other windows above? Are there drawbacks?


biomedical signal processing courses?

Started by Anonymous in comp.dsp6 months ago 2 replies

One of the universities I attended had a degree in Medical Imaging, which covers X-rays, MRI, ultrasound, PET et cetera. Now there is a seperate...

One of the universities I attended had a degree in Medical Imaging, which covers X-rays, MRI, ultrasound, PET et cetera. Now there is a seperate discipline, which I would guess is called "biomedical signal processing" that covers 1D signals such as heartbeat, brain waves, eye and muscle activity. Do many colleges offer this as a specialist degree?


What kind of analog circuit has a bad group delay spec?

Started by fl in comp.dsp6 months ago 10 replies

Hi, I was asked by someone about this question: "What kind of analog circuit has a bad group delay spec?" I only know some analog circuit...

Hi, I was asked by someone about this question: "What kind of analog circuit has a bad group delay spec?" I only know some analog circuit having good group delay spec, not the opposite. Do you know the answer? Thanks,


LFSR in java

Started by dahawi amer in comp.dsp6 months ago 10 replies

hi please help me to programmed linear feedback shift register algorithm in java

hi please help me to programmed linear feedback shift register algorithm in java


Java code for generating m-sequences

Started by SudanBoy in comp.dsp6 months ago 15 replies

I am working with Java and Eclipse to generate Gold Codes. I found about three different codes written in C++ on the internet for generating...

I am working with Java and Eclipse to generate Gold Codes. I found about three different codes written in C++ on the internet for generating the m-sequences. the problem is that I'm new to Java and even though I am translating these codes into Java environment, which is a very irritating process and time-consuming too (four weeks since I started). Unfortunately, non of them is seems to be work...


Anyone using Linux?

Started by Eric in comp.dsp6 months ago 51 replies

Just curious about how much Linux is being used for embedded DSP apps. If you're using it, what are your normal development tools?

Just curious about how much Linux is being used for embedded DSP apps. If you're using it, what are your normal development tools?


Using the convolution of two rectangular signals to test a block convolver.

Started by Les Cargill in comp.dsp6 months ago 11 replies

To test a convolver, a rectangular train of pulses can be convolved with ( a copy of ) itself to produce a triangular pulse. So suppose I...

To test a convolver, a rectangular train of pulses can be convolved with ( a copy of ) itself to produce a triangular pulse. So suppose I have two quantities related to rectangular pulses: - Buffer size - number of pulses possible. The "10" in "float pulse1[10]" is the buffer size. Call this BufferSize. - The length of the rectangular pulse. This much be


Windowing: Resolution vs dynamic range

Started by Eric in comp.dsp6 months ago 11 replies

Wikipedia has an informative page on Window functions. See this paragraph for context on dynamic range vs resolution: ...

Wikipedia has an informative page on Window functions. See this paragraph for context on dynamic range vs resolution: https://en.wikipedia.org/wiki/Window_function#Windowing The second part of that paragraph references tradeoffs between dynamic range and resolution. I'm assuming that the reference to 'dynamic range' means 'difference between center peak and nearby lobes', This woul...


Sorry about the many posts

Started by Michael Plet in comp.dsp6 months ago 62 replies

Hi Group I'm sorry about posting all my formulas without any delay. I just wanted to get them out there while they are new, so that...

Hi Group I'm sorry about posting all my formulas without any delay. I just wanted to get them out there while they are new, so that other people can use them if they want. Michael Plet


Stepper motors or servos?

Started by Anonymous in comp.dsp6 months ago 14 replies

I saw a real fast one armed robot. I was wondering if stepper motors was used or closed-loop control. I know NC machines use stepper motors but I...

I saw a real fast one armed robot. I was wondering if stepper motors was used or closed-loop control. I know NC machines use stepper motors but I heard the torque isn't as good as dc motors.


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