SPRACX7 April   2021 AWR1243 , AWR1443 , AWR1642 , AWR1843 , AWR1843AOP , AWR2243 , AWR2944 , AWR6843 , AWR6843AOP , IWR1443 , IWR1642 , IWR1843 , IWR6443 , IWR6843 , IWR6843AOP

 

  1.   Abstract
  2.   Trademarks
  3. 1Sensor RF Performance Validation
    1. 1.1 Basic Power-on Checks
    2. 1.2 Factory Calibrations
      1. 1.2.1 Antenna Beam Tilt Measurement
      2. 1.2.2 Range Bias and Receiver Channel Gain/Offset Compensation
    3. 1.3 Parametric Tests
      1. 1.3.1 Transmitter-Receiver Loopback SNR
    4. 1.4 Golden Sensor Unit
  4. 2Low-Cost Manufacturing Setup
    1. 2.1 Hardware
      1. 2.1.1 Low Cost Bench Top Anechoic Chamber
    2. 2.2 Software
  5. 3Advanced Test Setup
    1. 3.1 Target Simulator Setup
  6. 4References

1.4 Golden Sensor Unit

In a production calibration setting, it is important to have a ‘golden’ unit that can be used as a reference and to calibrate the test setup. The golden unit is a sensor that has been tested and proven to provide accurate results and as such can be used to help uncover issues in the test setup or to help calibrate a test setup. The link budget of the golden unit should be correlated to the measured SNR using the procedure described in the Tx-Rx Loopback SNR test.

When the golden unit has been tested and verified to provide accurate results, this unit can be used to periodically calibrate the test setup or to help debug any potential issues in the test setup. For example, in the event that many sensors begin to fail a test, the golden unit can be tested, and if the golden unit fails it is an indication that there could be an issue with the test setup itself. In some cases, the golden unit can be damaged, making it difficult to calibrate the test setup or debug any test setup issues. For this reason, it can be valuable to have multiple golden units in the given event that the original golden unit is damaged.