초록 ▼

A navigation system for a vehicle having a receiver operable to receive a plurality of signals from a plurality of transmitters includes a processor and a memory device. The memory device has stored thereon machine-readable instructions that, when executed by the processor, enable the processor to d

A navigation system for a vehicle having a receiver operable to receive a plurality of signals from a plurality of transmitters includes a processor and a memory device. The memory device has stored thereon machine-readable instructions that, when executed by the processor, enable the processor to determine a set of error estimates corresponding to pseudo-range measurements derived from the plurality of signals, determine an error covariance matrix for a main navigation solution using ionospheric-delay data, and, using a parity space technique, determine at least one protection level value based on the error covariance matrix.

대표청구항 ▼

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A navigation system for a vehicle having a receiver operable to receive a plurality of signals from a plurality of transmitters, the navigation system comprising:a processor; anda memor

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A navigation system for a vehicle having a receiver operable to receive a plurality of signals from a plurality of transmitters, the navigation system comprising:a processor; anda memory device having stored thereon machine-readable instructions that, when executed by the processor, enable the processor to:determine a set of error estimates corresponding to pseudo-range measurements derived from the plurality of signals,determine an error covariance matrix for a main navigation solution based on the determined set of error estimates, the error covariance matrix including off-diagonal elements representing ionospheric-delay spatial correlation, andusing a parity space technique, determine at least one protection level value based on the error covariance matrix.