Automated navigation system with integrity control of navigation data of satellite radio navigation systems according to information of strapdown inertial navigation system

摘要

FIELD: physics.SUBSTANCE: automatic navigation system to control the integrity of the navigation data of satellite navigation systems includes coordinate notation apparatus, as an essential element which uses a platform-free inertial navigation system (PFINS), equipped with a speed sensor mechanically (MSS), sensor of Doppler velocity (SDV) and the barometric altimeter (BA), satellite navigation devices (SND), board computer, a remote complex of satellite navigation equipment (RC SNE), device of Quality Control (DQC) of navigation fields of satellite systems and the formation of the correction information. A platform-free inertial navigation system (PFINS) is equipped with a navigation parameters calculator (NPC), which is capable of automatically accounting for temperature corrections, and inertial sensors are used as sensors for primary information of PFINS: laser gyroscopes (LG) and quartz accelerometers (QA). Satellite navigation equipment (SNE), which is based on a receiver (RI), is equipped with an antenna system (AS) consisting of four antenna modules (AM). The on-board computer is associated with a barometric altimeter (BA), which in turn consists of a temperature sensor (TS), a digital atmospheric pressure meter (DAPM) and a data processing unit (DPU), and through an alignment unit (AU) with a mechanical speed sensor (MSS) and the speed sensor of Doppler (SSD). In addition, it is equipped with peripheral devices: a keyboard (K), a video monitor (VM), a documenting device (DD), a manipulator of graphic information (MGI). The remote complex of satellite navigation equipment (RC SNE), consisting of a portable receiver (PR) and a geodetic antenna (GA), is equipped with a portable navigation information storage (NIS). The on-board computer is connected via the appropriate exchange and control channels with the above-mentioned equipment, in addition - with the data transmission equipment (DTE). In this case, the scheme for the use of satellite signals (SUSS) operates on the basis of the algorithm for monitoring the integrity of navigation support for satellite radio navigation systems. It consists of an adder, a threshold device (TD) and a key device (KD).EFFECT: increasing the integrity of the navigation system.1 dwg