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Automatic dependent surveillance-broadcast (ADS-B) test signal source

A technology for testing signal sources and ports, applied in the field of signal sources, can solve the problems of inability to determine the receiving rate and correct rate of receiving and decoding, and signal uncertainty, and achieve the effect of good effect and high reliability.

Inactive Publication Date: 2013-04-24
TIANJIN 764 COMM AIRMANSHIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country has been developing and producing ADSB receivers, but the real-time reception of ADSB signals from air planes has signal uncertainty, and it is impossible to determine the receiving rate and correct rate of receiving and decoding. Therefore, the ADSB test signal source is developed to test the ADSB receiver.

Method used

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  • Automatic dependent surveillance-broadcast (ADS-B) test signal source
  • Automatic dependent surveillance-broadcast (ADS-B) test signal source
  • Automatic dependent surveillance-broadcast (ADS-B) test signal source

Examples

Experimental program
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Embodiment Construction

[0019] Such as figure 1 , 2 As shown in , 3 and 4, the FPGA is composed of ROM, CRC check, and PPM code connected together in one direction in sequence. The single-chip computer is connected to the control display unit through the serial port two-way, the single-chip computer is connected to the FPGA in one direction, and the CPR code is one-way connected to the ROM, PPM code, The signal source, the ADSB receiver, and the control display unit are sequentially connected in one direction.

[0020] The serial port connection is that port 1 is grounded and connected with capacitor C30 in series, then connected with port 3, port 2 is grounded and connected with capacitor C31 in series, connected with port 4, port 5 is grounded and connected with capacitor C32 in series, connected with port 6, and port 7 is connected with capacitor in series C33 is grounded after, 8 ports are connected to RXD, 9 ports are connected to M RXD, 11 ports are connected to M TXD, 12 ports and 14 ports ar...

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Abstract

The invention relates to an automatic dependent surveillance-broadcast (ADS-B) test signal source which comprises a single chip micro-processor, a field programmable gata array (FPGA), a serial port and a control display unit. The FPGA is formed by a read only memory (ROM), a cyclic redundancy check (CRC) and a pulse position modulation (PPM) encoder. The ROM, the CRC and the PPM are connected in sequence in a one-way mode. The single chip micro-processor is connected with the control display unit in a two-way mode, the single chip micro-processor is connected with the FPGA in a one-way mode, a current pare register (CPR) encoder is connected with the ROM in a one-way mode, and the PPM encode, a signal source body, an ADS-B receiver and the control display unit are connected in sequence in a one-way mode. The ADS-B test signal source has the advantages of being used for verifying accuracy and reliability of the ADS-B receiver, good in effect, and high in reliability.

Description

technical field [0001] The invention relates to a signal source, in particular to an ADS-B test signal source. Background technique [0002] Automatic Dependent Surveillance-Broadcast (ADS-B) is a new navigation technology that uses air-to-ground and air-to-air data communications to complete traffic surveillance and information transmission. The International Civil Aviation Organization (ICAO) has identified it as the main direction of future surveillance technology development. The international aviation community is actively promoting the application of this technology, and some countries have put it into practice. Our country has been developing and producing ADSB receivers, but the real-time reception of ADSB signals from air planes has signal uncertainty, and it is impossible to determine the receiving rate and correct rate of receiving and decoding. Therefore, the ADSB test signal source is developed to test the ADSB receiver. Contents of the invention [0003] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B1/06H04B17/20
Inventor 张敬明
Owner TIANJIN 764 COMM AIRMANSHIP
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