Software Design Of TCAS Signal Simulation Equipment Based On SCA Architecture

With the rapid development of air transportation business,the density of air traffic has increased dramatically.TCAS provides an important guarantee for air traffic safety by monitoring other aircraft in the airspace near this aircraft and alerting pilots to avoid danger when a collision may occur.Therefore,it is important to conduct comprehensive inspection of TCAS to ensure the reliable operation of this system.The main part of TCAS is essentially a radio communication system,radio technology is developing,TCAS is also constantly updated and improved,this topic is based on software-defined radio technology research and design of TCAS signal simulation equipment software,combined with the hardware platform to meet the needs of the future development of integrated testing of TCAS transceiver host and transponder.The main work of this topic is as follows.1.Proposes a general scheme for implementing a TCAS signal simulation device with software-defined radio technology.The specific functions required to simulate TCAS interrogation and answer signals are analyzed,and the most widely used and mature SCA specification in the field of software-defined radio is used to design and implement the specification,which designs a unified abstract interface for the software and hardware of the software-defined radio system with good compatibility and scalability and software reusability.The client is the platform for TCAS signal data generation and reception,and the SCA system can be monitored and managed at the same time.2.Determine the SCA system development solution in the overall scheme and implement it.Based on the SCA system development methodology,analyze and compare the two options of SCA system traditional development and integrated development environment based development,and finalize the SCA integrated development environment development option for SCA system implementation.3.Design and implementation of TCAS signal simulation equipment client.The cross-platform Qt development framework is used to design and develop the TCAS signal simulation device client software as a software platform for SCA system monitoring,configuration,and setting,sending and receiving display of data carried by TCAS interrogation response signals.After the software design of TCAS signal simulation equipment based on SCA architecture is completed and loaded onto the existing TCAS test hardware platform,firstly,it can be used to test the flight target monitoring function of TCAS transceiver by generating different answering signals to simulate other flight targets;then,it can test the function of TCAS transponder by generating interrogation signals and parsing the answering signals from TCAS transponder,and can correctly Then,the TCAS transponder function can be tested by generating interrogation signals,parsing the answer signals from the TCAS transponder,and extracting the information of the aircraft where the transponder is located.Compared with the existing TCAS test system software,the scalability,reusability and portability of the TCAS signal simulation equipment software designed in this project have been greatly improved.