Software defined automotive radar

US11821981B2 · kind B2 · utility

Assignee

• Uhnder, Inc. · US

Inventors

• Curtis Davis · Chesterfield, US
• Monier Maher · Chesterfield, US
• Jean P. Bordes · Holden, US
• Manju Hegde · Chesterfield, US
• Otto A. Schmid · Holzgerlingen, DE
• Raghunath K. Rao · Austin, US
• Marius Goldenberg · Austin, US
• Aria Eshraghi · Woburn, US
• Vito Giannini · Austin, US
• David S. Trager · San Marcos, US
• Nikhilesh Bhagat · Austin, US
• Srikanth Gollapudi · Austin, US
• Sundar Govindarajan · Chennai, IN
• Steve Borho · Holden, US
• Jonathan Preussner · Austin, US
• Paul W. Dent · Stehag, SE
• Paul Bassett · Austin, US
• Stephen W. Alland · Tucson, US
• Fred Harris · Lemon Grove, US
• Wayne E. Stark · Ann Arbor, US
• Murtaza Ali · Plano, US

Key dates

• Filing date: Mar 28, 2023
• Grant date: Nov 21, 2023
• Expiry date: Mar 28, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/9324
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for operating a radar sensing system includes configuring a transmitter to transmit a radio signal. A receiver is configured to receive radio signals. The received radio signals include the transmitted radio signal transmitted by the transmitter and reflected from objects in the environment. The method includes with advanced temporal knowledge of the codes used to modulate the transmitted radio signal, using code values of the plurality of codes, and in combination with a bank of digital finite impulse response (FIR) filters, generating complementary signals of any self-interference noise. The method further includes subtracting the complementary signals at one or more points in the receiver prior to the interference desensing the receiver. The radar sensing system further includes a frequency modulated continuous wave (FMCW) interference canceller for detecting the largest interference signals and sequentially cancelling them while signal processing the received radio signals.