Peak cell detection and interpolation
AssigneeInfineon Technologies AG
InventorsAndre Roger, Markus Bichl, Farhan Bin Khalid
Life of this patent
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Abstract
A Signal Processing Unit (SPU) having a thresholding circuit configured to detect a peak cell of a radar data cube, and to output an identification of the peak cell and energy values of the peak cell and its adjacent cells; and an interpolation circuit coupled to the thresholding circuit, and configured to determine and transmit from the SPU to a Digital Signal Processor (DSP), a relative position of the peak cell between the adjacent cells based on the energy values.
Claims20
A Signal Processing Unit (SPU), comprising:
- a radar memory configured to store a radar data cube;
- a thresholding circuit connected to the radar memory, and configured to detect a peak cell of the radar data cube, and to output an identification of the peak cell and energy values of the peak cell and its adjacent cells;
- an interpolation circuit coupled to the thresholding circuit, and configured to determine and transmit from the SPU to a Digital Signal Processor (DSP), a relative position of the peak cell between the adjacent cells based on the energy values output from the thresholding circuit;
- and
- a memory buffer connected between the thresholding circuit and the interpolation circuit buffer, and configured to store the identification of the peak cell and energy values of the peak cell and its adjacent cells output by the thresholding circuit,
- wherein the interpolation circuit is configured to determine the relative position of the peak cell between the adjacent cells based on energy values obtained from the memory buffer.
A method for a Signal Processing Unit (SPU) processing a radar data cube, comprising:
- detecting, by a thresholding circuit connected to a radar memory configured to store the radar data cube, a peak cell of the radar data cube;
- outputting, by the thresholding circuit, an identification of the peak cell and energy values of the peak cell and its adjacent cells;
- determining and transmitting from the SPU to a Digital Signal Processor (DSP), by an interpolation circuit coupled to the thresholding circuit, a relative position of the peak cell between the adjacent cells based on the energy values output from the thresholding circuit;
- and
- storing, in a memory buffer connected between the thresholding circuit and the interpolation circuit, the identification of the peak cell and energy values of the peak cell and its adjacent cells output by the thresholding circuit,
- wherein the determining the relative position of the peak cell between the adjacent cells is based on energy values obtained by the interpolation circuit from the memory buffer.
Dependencies are inferred from the claim text.