SDAA103 September   2025 IWRL6432AOP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Angle of Arrival Estimation Theory: FFT Beamformer
    2. 1.2 Angle of Arrival Estimation Theory: Steering Vectors
  5. 2Additional Information
    1. 2.1 Measurement Procedure
    2. 2.2 Testing Results
      1. 2.2.1 Anechoic Chamber Testing on Corner Reflector Targets
      2. 2.2.2 Outdoor Testing on Human Subjects
    3. 2.3 Processing Time
    4. 2.4 Usage
    5. 2.5 Extensions to Other Platforms
  6. 3Summary
  7. 4References
  8. 5Appendix
    1. 5.1 Chirping Parameters for Each Configuration File
    2. 5.2 Point Cloud Data for Human Subject Testing

2.4 Usage

TI developed a software tool that computes steering vector coefficients for the IWRL6432AOP for a given bandwidth and chirping frequency. The tool can be found in the MMWAVE-L-SDK under tools/steering_vector_generation_tool/. This can be run with the command:

generateSteeringVectors.exe --filename
"path\to\config.cfg" --azimSpacing %Azimuth_Spacing% --elevSpacing
%Elevation_Spacing%

See the readme in the same folder for more details about usage.

Once the steering vectors file (aoasv_table.c) is generated, this can be used in a CCS project one of two ways:

  1. This can be copied (with all the files in the AOASVCDPU folder) into a CCS project, and built as a part of the CCS project. Note that the user can rename the .c file from aoasv_table6432.c to aoasv_table.c, and change some of the file paths in the AOASVCDPU and the CCS project to point to the new DPU. On MMWAVE-L-SDK 5.5.4, a folder called datapath/dpu/aoasvcproc/v0/ is needed to mimic the DPU folder structure found in motion_detect.h
    DPU Structure in motion_detect.h Figure 2-6 DPU Structure in motion_detect.h
    Folder Structure in Motion_and_Presence Project to Include AOASVCDPU Figure 2-7 Folder Structure in Motion_and_Presence Project to Include AOASVCDPU
  2. This can be built with a makefile as a part of the datapath DPU and linked to a CCS project.