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Thread: Plotting Cn-Cy and Cn-Ay Graphs.

  1. #91
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    OK boys and girls, somebody tell me if this link gets you connected with my trivial offerings.

    https://drive.google.com/drive/folde...3V?usp=sharing
    Last edited by BillCobb; 02-24-2018 at 07:04 AM. Reason: Kirk to Enterprise...

  2. #92
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    Bill, looks like the link works: I see some chirp test documents (thanks for those) and an image of a 'vette being tasked with hauling hay.

  3. #93
    I tried out the pulse steer method to tease out the freq response from a vehicle (again, Lagrangian mechanical vehicle model). results below (gifs @ 120 km/h).

    Pulse steer - 10 deg SW over 2.5 sec with 10 sec test length


    Chirp Steer - 10 deg SW with steer freqs from 1/10 through 2 Hz over 20 sec


    Seems that in this scenario (and with this vehicle model), the pulse steer methodology correlates reasonably at low freqs but can't sense the info at the mid speeds. Obviously, this depends on the details put into the pulse definition. On the plus side, the size of the testing domain is reduced bigly.

  4. #94
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    Check Your Pulse

    A Sim should easily produce results looking like this. Both time based and complex frequency based (as shown).pulse Sufficiency.JPGpulse_40kph.JPGpulse_80kph.JPGpulse_120kph.JPG

    See if this works now.

    https://drive.google.com/drive/folde...ND?usp=sharing
    Last edited by BillCobb; 02-28-2018 at 06:33 AM. Reason: Old linko stinko

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