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Original question:

CC2640: BT5 AoA

CCS/CC2640: BT5 AoA_receiver

user5809791
Prodigy 20 points
Part Number: CC2640

Tool/software: Code Composer Studio

Hi,

    I have used two BOOSTXL-AOA as receiver and one LAUNCHXL-CC2640R2 as sender to measure the AOA. The link like this:

:   file:///C:/ti/simplelink_cc2640r2_sdk_2_20_00_49/examples/rtos/CC2640R2_LAUNCHXL/blestack/aoa_receiver/README.html

The serial can output two angles. I want to know the output is the angle of arrival or the phase difference between two ANT.And why

the output can More than 90 degrees or less than 90 degrees.

  • 0
    TI__Genius 9215 points
    Hi,

    The serial output in the aoa_receiver example is estimated angle of arrival.

    The AoA angle output is not limited to ±90° in software. When operating in a non-ideal environment there can be a lot of multipath reflections which can affect your results (give false angle measurements). Filtering these out and extracting the true angle is something that has to be implemented in your SW.

    Best Regards,
    R.M
  • 0 in reply to R.M
    Prodigy 20 points

    Hi,

     I have some questions about angle of arrival. I want to know the The serial output are In three-dimensional space or two-dimensional space?  when we ignore the multipath reflections,What rules do angular output depend on? I can not understand where or what position is negative.CAN you share me the Schematic diagram of coordinates? 

  • 0 in reply to user5809791
    TI__Genius 9215 points

    Hi,

    The serial output is two-dimensional.

    Below is a diagram showing when you should expect positive angles and negative angles.

    Best Regards,

    R.M