the methods of GNSS signal quality monitoring estimation of navigation error and the reliability determination using maritime PNT module

摘要

The GNSS, eLORAN, and DGNSS receivers connected to the GNSS, eLORAN, and DGNSS antennas are further connected to the GNSS antenna using a distributor. In order to check whether the GNSS signal input to the GNSS receiver is a jamming signal, And a rubidium oscillator for frequency and time synchronization with the GNSS receiver; The GNSS, the eLORAN, the DGNSS receiver, the USS Alpine, and the rubidium oscillator are connected to analyze whether or not the jamming signal is input. The GNSS signal of the ship is received and analyzed to determine whether the TOA is received. And an industrial PC for generating reliability evaluation information by using a combination of analysis data or analysis data obtained by analyzing the presence or absence of a recognition result and transmitting the reliability evaluation information to a ship through a communication network. , Calculation of observation matrix, user distance error estimation, calculation of horizontal protection level (HPL) and integrity evaluation are performed, and reliability index including goodness, availability, attention and risk is determined based on the result of integrity evaluation The signal quality monitoring using the marine radio navigation signal receiving module, the navigation error estimation and the reliability And a system to which evaluation techniques are applied.