SIGNAL PROCESSING DEVICE Russian patent published in 2018 - IPC G01C21/00 

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of aircraft instrumentation and can be applied in integrated systems using information with a noisy signal, in particular, from the satellite navigation system (SNS) and providing the integrity of the navigation information of the system. Signal processing device comprises first, second and third path numbering systems, an equalizer, a first unit of computing devices, a first and second adders, a first filter, and an alarm driver, wherein each path number system is connected by an output to the corresponding input of the first unit of computing devices, which is connected to the first input of the first adder, the second input of the equalizer connected to the output, and also with the first input of the second adder, with the first adder output, and the second adder is connected to the first filter by a second input, the third, fourth and fifth adders, the second, third and fourth filters, the setpoint, the second and third units of computing devices, a selector device, an alarm generator, an input connected to the output of the second adder and the output of which is a violation of the boundary of the specified corridor, as well as a switch first connected to the output of the computing device unit, and an output with a first input of the first adder and a setpoint input, respectively, the third, fourth and fifth adder first inputs are connected to the outputs of the first, second and third path numbering systems, the second inputs to the output of the equalizer, and the outputs to the first inputs of the second, third and fourth filters, respectively, the said filters with their second inputs are respectively connected to the first, second and third outputs of the master, the fourth output connected to the input of the third block of computing devices, the second unit of computing devices includes a series connected unit for determining the health limit of the i number system, connected by the first input to the fifth output of the setpoint, the second input to the output of the third unit of computing devices, third, fourth and fifth inputs to the outputs of the second, third and fourth filters, the loss function determination unit, the proximity function determination unit connected by the second input to the sixth output of the setpoint, a block for determining the rating of the i number system of the path, connected by an output via a selector device to the second input of the switch.

EFFECT: improving the reliability of the signal processing device.

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