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CCS/TIDEP-01012: What are the working principles of various modes about the cascade radar?

user6010015
Intellectual 460 points
Part Number: TIDEP-01012
Other Parts Discussed in Thread: MMWCAS-RF-EVM

Tool/software: Code Composer Studio

1、Is the array used in the MIMO radar mode a sparse array?

2、Does the beamforming mode use digital beamforming or is it similar to phased array work?

  • 0
    TI__Mastermind 18470 points

    Hi user6010015, 

    Please see the MMWCAS-RF-EVM user guide for a description of the TX/RX antenna patterns and virtual array available on this design. https://www.ti.com/tool/MMWCAS-RF-EVM

    1. The elevation array uses a 4-element minimum redundancy linear array (MRLA) configuration: https://authors.library.caltech.edu/80393/1/01139138.pdf

    The RX array consists of 2x 4-element lambda/2 linear arrays and 1x 8-element lambda/2 linear array. In the azimuth axis this creates up to 144 lambda/2 virtual array elements, but up to 86 unique elements. In elevation, this creates up to 4 MRA elements. 

    2. The examples provided show both TX phased array beam-forming/steering and MIMO RX processing across the virtual channel arrays. Digital beam-forming of the resulting IF dataset can be applied, but we do not show an example of this. 

    Thank you,

    -Randy