机载防撞系统干扰限制功能的设计与实现  

Design and Implementation of Interference Limiting Function in Traffic Alert Collision Avoidance System (TCAS)

作　　者：林云松[1] 彭良福[2] 傅勇[3] 叶睿 

机构地区：[1]电子科技大学自动化工程学院,成都610054 [2]西南民族大学电气信息工程学院,成都610041 [3]成都大学电子信息工程学院,成都610106 [4]成都海姆达尔科技有限公司,成都610051

出　　处：《电讯技术》2014年第12期1593-1600,共8页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(61374190);四川省教育厅科研项目(14ZA0323)~~

摘　　要：针对机载防撞系统(TCAS)空对空通信时存在的同步混扰,采用飞机分布因子结合问询功率和问询速率的控制方法,建立了干扰限制的数学模型,给出了TCAS监视功能干扰限制的设计流程。按照DO-185B标准定义的高密度飞机分布环境,采用计算机仿真得到了TCAS干扰限制功能在高密度空域中统计性能,对不同监视区域中TCAS应答机的占用率与DO-185B的设计需求进行比较,验证了设计的干扰限制功能的有效性和实用性。仿真结果表明干扰限制算法能够满足高密度空域中TCAS监视功能的要求,在TCAS干扰限制功能的设计和性能评估方面具有实际应用价值。The mathematic models of interference limiting are established by utilizing distribution factor ofaircraft combined with the control of Traffic alert Collision Avoidance System（TCAS） interrogation powerand rate which are resulted from air-to-air communication in TCAS,and the interference limiting proce-dure in TCAS surveillance function is discussed in detail. According to the high traffic-density environmentdefined in DO-185B standard,the computer simulations are used to characterize the statistical performanceof the TCAS interference limiting function in high density airspace. Transponder utilization due to TCASand TCAS surveillance range is compared with the interference limiting design requirements to verify the ef-fectiveness and practicability of the interference limiting function design. The simulation results indicatethat the interference limiting algorithm meets the requirements of the TCAS surveillance function in highdensity airspace and it has actual application value on the design and performance evaluation of TCAS in-terference limiting function.

关 键 词：机载防撞系统 干扰限制 同步混扰 小声呼叫问询 监视功能 

分 类 号：TN957.54[电子电信—信号与信息处理]