Interference suppression for multi-radar coexistence
Methods, systems, computer-readable media, and apparatuses for transmitting and receiving radar signals from a radar source while minimizing interference with other radar sources are presented. A transmit signal comprising a first chirp sequence is generated according to a set of waveform parameters, with least one waveform parameter being varied for one or more chirps in the first chirp sequence. Additionally, each chirp of the first chirp sequence can be phase-modulated. A receive signal comprising a second chirp sequence and corresponding to the transmit signal reflected off an object in a surrounding environment is then sampled to determine one or more attributes of the object. In some embodiments, the attributes include distance and speed values calculated using Discrete Fourier Transforms (DFTs). Other attributes that can be calculated from the receive signal include azimuth angle and elevation angle.
QUALCOMM Incorporated
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Sundar Kapil Junyi Jayakrishnan
Subramanian Gulati Li Unnikrishnan