Patent · US Active

Joint non-coherent integral vector tracking method based on spatial domain

US10663599B2 · kind B2 · utility

0Cited by

2References

3Claims

0Family size

Assignee

SOUTHEAST UNIVERSITY · CN

Inventors

Xiyuan Chen · Nanjing, CN
Yang Yang · Parsippany, US
Xiying Wang · Beijing, CN
Bingbo Cui · Nanjing, CN
Xinhua Tang · Nanjing, CN
Xuefen Zhu · Nanjing, CN

Key dates

Filing date	Jun 27, 2016
Grant date	May 26, 2020
Priority date	—
Expiry date	Aug 27, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01S19/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention discloses a joint non-coherent integral vector tracking method based on a spatial domain, which is used for further improving the performance of a vector tracking GPS (Global Positioning System) receiver. In a new vector tracking strategy design, a phase discriminator/a frequency discriminator in a traditional vector tracking loop is discarded, and baseband signals of visible satellites in each channel are taken as an observation value after performing non-coherent integration, and EKF (abbreviation of Extended Kalman Filter) is used to estimate directly and to solve the position, the velocity, a clock error, etc. of the GPS receiver. Because of the existence of non-coherent integral calculation, when GPS satellite signals are relatively weak, a carrier to noise ratio of an observation value may be effectively improved, and the tracking sensitivity is improved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.