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  • Re: What is a boxcar filter?

    From mohammed.morsi01@mohammed.morsi01@gmail.com to comp.dsp on Mon Jun 1 00:22:53 2020
    From Newsgroup: comp.dsp

    On Monday, February 12, 1996 at 10:00:00 AM UTC+2, Edwin Verheijen wrote:
    Raphael Schneider (rasch@med1.med.tu-muenchen.de) wrote:
    : Hi,

    : does anyone knows what a boxcar low-pass filter is and how it works?

    : Thanks Raphael

    A boxcar filter uses a rectangular window in the frequency domain.
    In a drawing it looks like:

    |Hi Everyone, I need simple explanation for the way Boxcar filter works, and if some graphs provided that will be useful. thanks in advance

    |
    ampl. |
    |___________
    | |
    | |
    | |
    |___________|_________
    F_0
    frequency--->

    Untill F=F_0 it passes all frequencies, while it cuts
    signal components above this frequency F_0.
    If the filter as a edgy fall-off at F=F_0 it may produce
    unwanted effects like a tone at this frequency (e.g.
    if you would listen to noise filtered by the boxcar).
    Any handbook about (digital or analog) filtering will
    describe it in detail.

    Edwin Verheijen

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  • From Zach Metzinger@please@ask.me to comp.dsp on Fri Jun 5 16:47:49 2020
    From Newsgroup: comp.dsp

    On 06/05/20 10:34, Randy Yates wrote:
    Wow, 1996???

    Better late than never.

    --- Zach


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  • From blocher@blocher@columbus.rr.com to comp.dsp on Mon Aug 10 03:20:38 2020
    From Newsgroup: comp.dsp

    On Friday, June 5, 2020 at 11:34:26 AM UTC-4, Randy Yates wrote:
    Wow, 1996???

    Gotta dig deep to keep this group going
    --
    Randy Yates, DSP/Embedded Firmware Developer
    Digital Signal Labs
    http://www.digitalsignallabs.com

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