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IWR6843AOP: Objects versus range

Danilo A.
Mastermind 28560 points
Part Number: IWR6843AOP
Other Parts Discussed in Thread: AWR2243

Hi Team,

Table 2-1 of the application report below shows the objects versus range for xWR1443, xWR1642 and xWR1443 devices. Our customer would like to know if we have a summary or table for xWR2243 and xWR6843.

www.ti.com/.../swra593a.pdf

Regards,

Danilo

  • 0
    TI__Mastermind 37780 points

    Hi Danilo,

    While we don't have this table for those devices, I would say that the xWR2243 is likely to outperform all the devices shown in this app note because it has smaller noise figures and phase noise than the devices listed here. The 6843 though operates at a different frequency band, so I'm not comfortable making direct comparisons with it and the 77GHz devices. 

    Is there a specific object/range requirement that the customer is interested in here? Perhaps we can get more specific to provide a better estimate of what's possible.

    Best,

    Nate

  • 0 in reply to Nathan Block
    TI__Mastermind 28560 points

    Hi Nate,

    Thank you for your response. Please see our customer's feedback below.

    Is there a specific object/range requirement the customer is interested in here?

    - yes, It's a specific requirement.
    mmWave should detect
    - any weather and humidity,
    - temperature range(-10C to +85C),
    - 360-degree angle detection. or 3d object detection
    - detection range 100m.

    Regards,

    Danilo

  • 0 in reply to Danilo A.
    TI__Mastermind 37780 points

    Hi Danilo,

    Our radar sensors have a fixed field of view that is less than 360 degrees. The customer can use multiple radar sensors in combination with one antoher if they want to achieve a full 360 degree field of view in an outdoor scenario. We are able to offer detection range of 100 m, but only for objects that are moving quickly and are more reflective, such as cars.

    Best,

    Nate

  • 0 in reply to Nathan Block
    Intellectual 300 points

    Hi Nate,

    We are able to offer detection range of 100 m, but only for objects that are moving quickly and are more reflective, such as cars.

     - Is it detect 3d objects?

    Can you suggest which mm-wave sensor to use for the automotive drone and detect 3d objects/obstacles during the path?

    Best Regards,

    Darshan

  • 0 in reply to D J
    TI__Genius 17265 points

    Hi,

    So the first thing to determine will be the proper frequency band for this use case. I would highly recommend that you investigate the regulatory restrictions that you will face in the markets you are interested in, as this will almost certainly determine whether you should use 77Ghz radar (such as xWR1843) or 60 Ghz radar (such as xWR6843). 

    The next decision to make will likely be whether you want a full radar SOC (such as xWR1843 or xWR6843) with on-chip processing, or if you would prefer to use a radar front end only (such as AWR2243) and use your own processor to process the radar data.

    For evaluation, using an xWR6843 is likely simplest, but be sure to take considerations of the two pieces above for the longer term.


    Best Regards,
    Alec