公开(公告)号：US20250093461A1

公开(公告)日：2025-03-20

申请号：US18368614

申请日：2023-09-15

Applicant: NXP B.V.

Inventor： Wilhelmus Johannes van Houtum ,  Vinicius Oliari Couto Dias

IPC: G01S7/282 ,  H04L5/00

Abstract: In implementations of signal processing for OFDM radar systems, an OFDM transceiver of an ISAC system is operated in full-duplex mode in a downlink communication phase. The ISAC system generates sensing symbols for an OFDM radar system by combining OFDM communication symbols and repetitions of the OFDM communication symbols as the sensing symbols. The OFDM transceiver attenuates subcarriers of received sensing symbols for processing by the OFDM radar system to increase a signal-to-noise ratio of the received sensing symbols.

公开(公告)号：US20250060470A1

公开(公告)日：2025-02-20

申请号：US18235544

申请日：2023-08-18

Applicant: NXP B.V.

Inventor： Wilhelmus Johannes van Houtum ,  Ashish Pandharipande ,  Vinicius Oliari Couto Dias

IPC: G01S13/34 ,  G01S7/00 ,  G01S7/282 ,  G01S7/288 ,  G01S13/58 ,  G01S13/92

Abstract: A radar transceiver includes a radar transmitter and a radar receiver. The radar transmitter includes generation circuitry to generate a digital radar chirp sequence, and one or more digital-to-analog converters to convert the digital radar chirp sequence into a radar signal to be transmitted via one or more transmit antennas. The radar receiver includes one or more analog-to-digital converters to convert a received reflection of the radar signal to a received digital signal, and a mixer to mix the received digital signal with the digital chirp sequence to generate a digital de-chirped signal for velocity estimation followed by range estimation.