TIDUF00 November   2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Why Radar?
    2. 1.2 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
      1. 2.1.1 Automated Parking Software Block Diagram
    2. 2.2 Highlighted Products
      1. 2.2.1 AWR1843AOP Single-Chip Radar Solution
      2. 2.2.2 mmWave SDK
    3. 2.3 System Design Considerations
      1. 2.3.1 Usage Case Geometry and Sensor Considerations
      2. 2.3.2 AWR1843AOP Antenna
      3. 2.3.3 Processing Chain
    4. 2.4 Chirp Configuration Profile
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
      2. 3.1.2 Software and GUI
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup
      2. 3.2.2 Test Results
        1. 3.2.2.1 Use Case – Vehicle, Bicycle, Pedestrian Detection
        2. 3.2.2.2 Use Case – Traffic Cone, Grocery Cart, Sign Pole, Pipe, Shrub
        3. 3.2.2.3 Use Case – Pedestrian Standing in Empty Parking Space
        4. 3.2.2.4 Use Case – Pedestrian Standing Next to Car
        5. 3.2.2.5 Use Case – Empty Parking Space
        6. 3.2.2.6 Use Case – Cross Traffic Alert
        7. 3.2.2.7 Use Case – Parking Block, Curb Detection
  9. 4Design Files
    1. 4.1 Design Database
    2. 4.2 Schematic, Assembly, and BOM
  10. 5Software Files
  11. 6Related Documentation
    1. 6.1 Trademarks

2.4 Chirp Configuration Profile

The AoP automated parking demo uses multi-mode advanced chip configurations. There are two sub-frames being used, one for ultra-short range detection (0-10m) and the second one for short range detection (10-50m).

The two sub-frames are configured in the configuration file provided with the software package: \profiles\parking_advframe.cfg.

To understand the syntax of the commands in detail the reader is invited to read the mmWave SDK User Guide, section 3. 4. Configuration (.cfg) File Format.

The User Guide is provided in: C:\ti\mmwave_sdk_03_05_00_04\docs\mmwave_sdk_user_guide.pdf

Table 2-1 provides a summary of the configuration

Table 2-1 Chirp Configurations
CONFIGURATION PARAMETERULTRA-SHORT RANGESHORT RANGE
Frame Duration50 ms50ms
ADC sampling rate3.6MSPS6.2MSPS
Chirp valid sweep bandwidth280MHz1.8GHz
Number of samples per chirp128128
Number of chirps per frame128128

The reader is invited to review following E2E FAQ for details on how to compute maximum range, range resolution, maximum unambiguous velocity and velocity resolution.

Computing Maximum Range, Velocity, and Resolution mmWave System