CAJ | 학술논문

航空监视系统的抗干扰性能对于保障空中交通安全具有十分重要的意义.近年来,航空工业的迅猛发展促进了多种监视技术的出现,并将在相当长一段时间内同时存在,这些监视技术均使用1090 MHz的下行频率,造成了1090 MHz 频率的信号拥挤问题,这对于提高航空监视系统的抗干扰性能又提出了新的挑战.分析了1090 MHz 频率信号的各种同频干扰形式,针对容易导致监视系统漏检的窜扰,推导出 A/C模式应答信号、S 模式应答信号和1090ES 信号之间在不同情况下的混叠概率,并在假定的理想环境下对系统性能进行仿真与评估.
항공감시계통적항간우성능대우보장공중교통안전구유십분중요적의의.근년래,항공공업적신맹발전촉진료다충감시기술적출현,병장재상당장일단시간내동시존재,저사감시기술균사용1090 MHz적하행빈솔,조성료1090 MHz 빈솔적신호옹제문제,저대우제고항공감시계통적항간우성능우제출료신적도전.분석료1090 MHz 빈솔신호적각충동빈간우형식,침대용역도치감시계통루검적찬우,추도출 A/C모식응답신호、S 모식응답신호화1090ES 신호지간재불동정황하적혼첩개솔,병재가정적이상배경하대계통성능진행방진여평고.
@@@@ Anti-jamming performance of the aviation surveillance system is of great significance in ensuring the air traffic safety. In recent years, the rapid development of aviation industry promotes the emergence of various surveillance technologies, and these technologies would simultaneously exist for quite a long time. These surveillance technologies all adopt the same downlink frequency of 1 090 MHz, thus resulting in the signal congestion, and this becomes a new challenge to the improvemeent of anti-jamming performance of the system. This paper first analyzes the co-channel interferences of 1 090 MHz, and then deduces the garble probability of mode A/C, mode S and 1090 ES signals in different situation. Based on the assumed ideal environment, the system performance is simulated and evaluated.