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AWR1642BOOST: How close two awr1642 can be kept to cover the 360 degree view?

ashutosh Badave
Prodigy 20 points
Part Number: AWR1642BOOST
Other Parts Discussed in Thread: AWR1642

Hello all,

I am using AWR1642 for obstacle detection and I wanted to cover the 360 degree view for my robot movement.

For that I am considering the use of 2 AWR1642 attched in opposite direction. But I am not sure if there any issue or interference if I keep them at close distance.

As I am studying the wave theory, I checked that the globe formation is in all directional, with major globe in front direction, and there might be some side globes as well as their might be back globe , so is there any way to figure it out. Do I need to take of it or it is already taken care. 

  • 0
    TI__Guru 69960 points

    Hi Ashutosh,

    You can use different frequency bands for each of AWR1642 to avoid interference. 

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 20 points

    Hello Jitendra,

    Thank you for the quick response.

    I am a beginner with this sensor, I did not get your point. Could you please elaborate?

    Are you suggesting using 1 AWR with 76 GHz and another with 77 GHz, like USSR and SSR configurations?

    I wanted to use SSR configuration in both AWR1642, so that they will cover the same range and angle for obstacle detection.

    In that context, if the same configuration can't be used then what are the changes I need to do in respective sensor configurations to avoid interference?

    kind regards,

    Ashutosh 

  • 0 in reply to ashutosh Badave
    TI__Guru 58035 points

    Hello Ashutosh,

    What is the chirp bandwidth you plan to use? For example if you are using 1Ghz sweep bandwidth you could configure one sensor to sweep from 77 Ghz to 78Ghz and the other sensor from 78Ghz to 79Ghz. This is what Jiten means by using different RF frequency bands.

    In this way , since the frequency of operation is completely different , they would not interfere with each other.

    regards,

    vivek