19002998. ON-FIELD PHASE CALIBRATION (TEXAS INSTRUMENTS INCORPORATED)
ON-FIELD PHASE CALIBRATION
Organization Name
TEXAS INSTRUMENTS INCORPORATED
Inventor(s)
Karthik Subburaj of Bangalore IN
ON-FIELD PHASE CALIBRATION
This abstract first appeared for US patent application 19002998 titled 'ON-FIELD PHASE CALIBRATION
Original Abstract Submitted
An example radar system includes transmit, receive and processing circuitry. In operation, the radar system transmits first and second sets of chirp signals in which each chirp signal of the first set of chirp signals has an induced phase shift, receives reflected signals based on the transmitted first and second sets of chirp signals, and generates respective first and second sets of digital signals. Fourier Transform (FT) operations are performed on the first and second sets of digital signals to generate first and second arrays, respectively. The radar system identifies a first peak in the first array and a second peak in the second array representing an object in a field of view. The first and second peaks are at corresponding positions in the first and second arrays, respectively. The radar system then compares the phases of the first and second peaks to determine an actual phase shift for the induced phase shift.
