MULTIFUNCTIONAL AUTOMATIC DEPENDENT BROADCAST SURVEILLANCE MESSAGE RECEIVING MODULE FOR SMALL SPACECRAFT Russian patent published in 2023 - IPC H04B1/16 

FIELD: radio location; computer technology.

SUBSTANCE: invention is used for air traffic control, identification, measuring distances in navigation systems, determining the position of aircraft, mainly by receiving and processing signals at a frequency of 1090 MHz transmitted from aircraft - ADS-B signals (Automatic dependent surveillance in broadcast mode). The mentioned technical result is achieved by the fact that the FPGA (field-programmable gate array), which is part of the multifunctional module for receiving ADS-B messages for small spacecraft, simultaneously, performs in a parallel-pipeline mode: decoding, integrity checking, integration, storage in flash memory, and transmission of received ADS-B messages via the UART interface. The multifunctional module for receiving ADS-B messages for a small spacecraft contains an amplifier, an RF filter at 1090 MHz, the second amplifier, the second RF filter at 1090 MHz, a logarithmic amplifier and detector, a differential amplifier, an analogue-to-digital converter, an FPGA, the first and the second reference frequency generators, read-only memory, UART interface, wherein the output data bus of the analogue-to-digital converter is connected to the input data bus of the FPGA, and the control inputs are connected via the first SPI interface to the FPGA, the clocked input of the analogue-to-digital converter is connected to the output of the first reference frequency generator, and the clocked the FPGA input is connected to the output of the second reference frequency generator, the inputs and outputs of the read-only memory device are connected to the FPGA via the second SPI interface, the group of UART interface pins on one side is connected to the UART pins of the FPGA, and the group of UART interface pins on the other side are the inputs and outputs of the multifunction module for receiving ADS-B messages for a small spacecraft.

EFFECT: reduced hardware complexity of the multifunctional module for receiving ADS-B messages for a small spacecraft (SC) and eliminated loss of ADS-B messages due to delay.

1 cl, 1 dwg