AUTOMATED NAVIGATION SYSTEM WITH NAVIGATION DATA INTEGRITY CONTROL OF SATELLITE RADIONAVIGATION SYSTEMS BASED ON MECHANICAL AND DOPPLER SPEED INFORMATION Russian patent published in 2017 - IPC G01C23/00 

FIELD: radio engineering, communication.

SUBSTANCE: automated navigation system with the navigation data integrity control of satellite radionavigation systems based on mechanical and doppler speed information consists of the coordinate calculating equipment, the basic element of which is the platformless inertial navigation system (PINS) equipped with a mechanical speed sensor (MSS), a doppler speed sensor (DSS) and a barometric altimeter (BA), a satellite navigation equipment (SNE), an on-board computer, a remote complex of the satellite navigation equipment (RC SNE), a quality control unit (CCU) of the satellite system navigation fields and forming correction information. The platformless inertial navigation system (PINS) is equipped with a navigation parameter calculator (NPC), which is capable of automatic accounting of temperature corrections, and inertial sensors are used as the primary PINS information sensors: laser gyroscopes (LH) and quartz accelerometers (QA). The satellite navigation equipment (SNE), which is based on a receiver-indicator (RI), is equipped with an antenna system (AS) consisting of four antenna modules (AM). The on-board computer is associated with a barometric altimeter (BV), which in turn consists of a temperature sensor (TS), a digital atmosphere pressure meter (DAPM) and a data processing unit (DPU), and through an alignment unit (AU) with the mechanical speed sensor (MSS) and the doppler speed sensor (DSS). 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 the satellite navigation equipment (PC SNE), consisting of a portable receiver-indicator (PRI) and a geodetic antenna (GA), is equipped with a portable navigation information storage device (NISD). 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). A distinctive feature of the prototype is the availability of a satellite signal use enabling circuit (SSUEC) based on the algorithm for the integrity control of navigation support for satellite radionavigation systems. It consists of an adder, a threshold device (TD) and a key device (KD).

EFFECT: expanding functionality, creating an automated navigation system with the integrity control of the satellite navigation equipment navigation data due to the introduction of the enabling circuit for the information use of the satellite navigation equipment, which allows to identify the fact of malfunctioning of satellite radionavigation systems and to isolate data from the satellite navigation equipment, thus increasing the system integrity.

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