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公开(公告)号：US20230064267A1
公开(公告)日：2023-03-02
申请号：US17823206
申请日：2022-08-30
IPC分类号： G06F8/65
摘要： This document describes techniques and systems for crowd-sourced continuous update data collection for automotive applications. Each vehicle of a vehicle fleet may include a logging system, a data query daemon, and a user application. The logging system logs application metadata or sensor data for a host vehicle. The data query daemon receives data queries from a remote data query system and detects the requested data in the application metadata and/or the sensor data being logged. The user application may provide information related to the data query to the vehicle user and request permission to execute the data query. In this way, application providers for ADAS and AD systems may collect relevant data from an existing vehicle fleet to develop updated or new applications without incurring the recurring cost of expensive data collection campaigns.
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公开(公告)号：US20240201358A1
公开(公告)日：2024-06-20
申请号：US17019320
申请日：2020-09-13
发明人： Xining Yu , James Fredrick Searcy , Zhengzheng Li
CPC分类号： G01S13/584 , G01S7/35
摘要： The techniques of this disclosure relate to object range and velocity detections from varying radar pulse repetition times. A device includes a transmitter, a receiver, and a processor. The transmitter is configured to transmit a series of electromagnetic pulses within a frame having a varying pulse repetition time between electromagnetic pulses. A center frequency of the electromagnetic pulses varies by a frequency step. The receiver is configured to receive a series of corresponding reflected electromagnetic pulses reflected from an object. The processor is configured to determine range and velocity information of the object based on the received series of corresponding reflected electromagnetic pulses. By varying the pulse repetition times between consecutive pulses in a radar frame, the radar system may improve a range resolution, particularly in the case of frequency-modulated continuous-wave (FMCW) radar systems.
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公开(公告)号：US20220404455A1
公开(公告)日：2022-12-22
申请号：US17479363
申请日：2021-09-20
IPC分类号： G01S7/02 , G01S7/292 , G01S7/40 , G01S13/66 , G01S13/931
摘要： This document describes techniques, apparatuses, and systems for radar interference mitigation using signal pattern matching. Radar signals (e.g., chirps) received by a radar system may include interference from other nearby radar systems. The interference can result in reduced sensitivity of the radar system. The techniques, apparatuses, and systems described herein mitigate the interference by selecting an uncorrupted segment of the radar signal that neighbors a corrupted segment, analyzing the radar signal to identify a match segment that has similar signal characteristics to the neighbor segment, and replacing the corrupted segment with a segment that is adjacent to the match segment. In this manner, a noise floor of the radar system may be lowered, leading to increased sensitivity.
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