公开(公告)号：US20150346333A1

公开(公告)日：2015-12-03

申请号：US14291109

申请日：2014-05-30

Applicant: The Boeing Company

Inventor： Ely V. Soto ,  Daniel Weigand

IPC: G01S13/08 ,  G01S13/58

Abstract: Methods for: (1) extracting Doppler/velocity measurements; (2) estimating relative clock bias errors; (3) determining range and velocity estimates with associated confidences; and (4) extracting range estimates using channel estimation are disclosed. These methods can be used separately or combined to improve positioning solutions obtained by positioning systems used in indoor locations and other GPS-denied environments.

Abstract translation: 方法：（1）提取多普勒/速度测量; （2）估计相对时钟偏差误差; （3）确定相关信息的范围和速度估计; 并且（4）公开了使用信道估计提取范围估计。 这些方法可以单独使用或组合使用，以改善通过在室内位置和其他GPS拒绝环境中使用的定位系统获得的定位解决方案。

公开(公告)号：US20220276094A1

公开(公告)日：2022-09-01

申请号：US17649944

申请日：2022-02-04

Applicant: THE BOEING COMPANY

Inventor： Ely V. Soto ,  Aleksandar Jovancevic

IPC: G01J3/40 ,  G01R23/16 ,  G06N3/04 ,  G06T7/00

Abstract: A method of signal processing includes receiving samples of a signal and processing the samples using a time-windowed transform function to generate spectral data corresponding to each time window. The method includes generating first spectrogram data based on magnitudes of the spectral data and generating second spectrogram data based on phase differences of the spectral data. The method further includes combining the first spectrogram data and the second spectrogram data to generate a combined spectrogram and processing the combined spectrogram to generate output.

公开(公告)号：US12104955B2

公开(公告)日：2024-10-01

申请号：US17649944

申请日：2022-02-04

Applicant: THE BOEING COMPANY

Inventor： Ely V. Soto ,  Aleksandar Jovancevic

IPC: G01J3/40 ,  G01R23/16 ,  G06N3/04 ,  G06T7/00 ,  G01J3/28 ,  G06N20/00

CPC classification number: G01J3/40 ,  G01R23/16 ,  G06N3/04 ,  G06T7/0002 ,  G01J3/2823 ,  G06N20/00 ,  G06T2207/20084

Abstract: A method of signal processing includes receiving samples of a signal and processing the samples using a time-windowed transform function to generate spectral data corresponding to each time window. The method includes generating first spectrogram data based on magnitudes of the spectral data and generating second spectrogram data based on phase differences of the spectral data. The method further includes combining the first spectrogram data and the second spectrogram data to generate a combined spectrogram and processing the combined spectrogram to generate output.