JAJU833 November   2021 AWR2944 , IWR2944

 

  1.   概要
  2.   リソース
  3.   特長
  4.   アプリケーション
  5.   5
  6. 1System Description
    1. 1.1 Why use Radar?
    2. 1.2 TI Corner Radar Design
    3. 1.3 Key System Specification
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 AWR2944 Single-Chip Radar Solution
      2. 2.3.2 AWR2944 Evaluation Module
    4. 2.4 System Design Theory
      1. 2.4.1  Antenna Configuration
      2. 2.4.2  Chirp Configuration and System Performance
      3. 2.4.3  Data Path
      4. 2.4.4  Chirp Timing
      5. 2.4.5  eDMA Configuration
      6. 2.4.6  Memory Allocation
      7. 2.4.7  DDMA
      8. 2.4.8  Empty Subband Based DDMA
      9. 2.4.9  RANSAC
      10. 2.4.10 Group Tracker
  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 Test Setup
    3. 3.3 Test Results
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 サポート・リソース
    5. 4.5 Trademarks
  10. 5About the Author

1.3 Key System Specification

This reference design uses Doppler division multiple access (DDMA) processing where most of processing is done on the HWA and some intermediate tasks are offloaded to the DSP.

Table 1-1 Key System Specification
PARAMETER SPECIFICATIONS DETAILS
Maximum range (m) 253 This is the maximum range supported by the chirp configuration shown in Table 2-1. The maximum detectable range for a given object depends on the Radar cross section (RCS) of the object
Range resolution (m) 1.3 The theoretical achievable resolution by AWR2944 is 3.75 cm based on 4 GHz bandwidth
Maximum velocity (kmph) ±143 This is the native maximum velocity obtained after velocity disambiguation in DDMA. This specification can be improved by either using the range-rate in the tracker or higher-level algorithms
Velocity resolution (kmph) 0.37 This parameter represents the capability of the radar sensor to distinguish between two or more objects at the same range but moving with different velocities
Azimuth angular resolution (Deg) 9.5 This is the native azimuth angular resolution based on the virtual array aperture