Systems and methods for providing future object localization

    公开(公告)号:US12072678B2

    公开(公告)日:2024-08-27

    申请号:US16828343

    申请日:2020-03-24

    摘要: In one embodiment, a system includes one or more vehicle sensors for capturing host data and a processor having modules. The data receiving module identifies one or more proximate vehicles within the environment based on one or more of the host data and proximate data received from the one or more proximate vehicles. The motion prediction module generates a first joint uncertainty distribution based on an initial joint uncertainty model and a host model distribution. The motion prediction module also samples host kinematic predictions based on the first joint uncertainty distribution and the host data. The object localization module generates a second joint uncertainty distribution based on the initial joint uncertainty model and an object prediction model distribution. The object localization module also samples proximate kinematic predictions based on the second joint uncertainty distribution and the proximate data.

    Digital predistortion with neural-network-assisted physical modeling of envelope features

    公开(公告)号:US12040753B2

    公开(公告)日:2024-07-16

    申请号:US17948482

    申请日:2022-09-20

    IPC分类号: H03F1/32 G05B13/02

    CPC分类号: H03F1/3247 G05B13/027

    摘要: Systems, devices, and methods related to envelope regulated, digital predistortion (DPD) are provided. An example apparatus includes an envelope regulator circuit to process, based on a parameterized model, an input signal to generate an envelope regulated signal; a digital predistortion (DPD) actuator circuit to process the envelope regulated signal and the input signal based on DPD coefficients associated with a nonlinearity characteristic of a nonlinear component; and a DPD adaptation circuit to update the DPD coefficients based on a feedback signal indicative of an output of the nonlinear component.

    Training machine learning model(s), in simulation, for use in controlling autonomous vehicle(s)

    公开(公告)号:US11989020B1

    公开(公告)日:2024-05-21

    申请号:US17125231

    申请日:2020-12-17

    IPC分类号: G05D1/00 G05B13/02 G06N3/084

    摘要: Systems and methods for training a machine learning (“ML”) model for use in controlling an autonomous vehicle (“AV”) are described herein. Implementations can obtain an initial state instance from driving of a vehicle, obtain ground truth label(s) for subsequent state instance(s) that each indicate a corresponding action of the vehicle for a corresponding time instance, perform, for a given time interval, a simulated episode, of locomotion of a simulated AV, generate, for each of a plurality of time instances of the given time interval, subsequent simulated state instance(s) that differ from the subsequent state instance(s), determine, using the ML model, and for each of the time instances, a predicted simulated action of the simulated AV based on the subsequent simulated operation instance(s), generate loss(es) based on the predicted simulated actions and the ground truth labels, and update the ML model based on the loss(es).