电子科技大学学报
電子科技大學學報
전자과기대학학보
JOURNAL OF UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
2013年
6期
848-851
,共4页
空中交通管制%混叠%A/C模式%多点定位%时域分离
空中交通管製%混疊%A/C模式%多點定位%時域分離
공중교통관제%혼첩%A/C모식%다점정위%시역분리
air traffic control%garble%mode A/C%multilateration%separation in time domain
多点定位是空中交通管制的新兴技术,抗干扰技术是多点定位系统走向实用的关键。针对多个目标发射信号的混叠问题,在分析A/C模式混叠信号时域特征和规律的基础上,定义了脉冲重叠度和脉冲描述字,并将混叠信号的分离归结为其子脉冲的分离和归位。再根据混叠子脉冲的脉宽、幅度、相位等特征,提出了混叠子脉冲的分离方法,进而实现了整个A/C模式脉冲串的解混叠。仿真验证了算法的有效性。
多點定位是空中交通管製的新興技術,抗榦擾技術是多點定位繫統走嚮實用的關鍵。針對多箇目標髮射信號的混疊問題,在分析A/C模式混疊信號時域特徵和規律的基礎上,定義瞭脈遲重疊度和脈遲描述字,併將混疊信號的分離歸結為其子脈遲的分離和歸位。再根據混疊子脈遲的脈寬、幅度、相位等特徵,提齣瞭混疊子脈遲的分離方法,進而實現瞭整箇A/C模式脈遲串的解混疊。倣真驗證瞭算法的有效性。
다점정위시공중교통관제적신흥기술,항간우기술시다점정위계통주향실용적관건。침대다개목표발사신호적혼첩문제,재분석A/C모식혼첩신호시역특정화규률적기출상,정의료맥충중첩도화맥충묘술자,병장혼첩신호적분리귀결위기자맥충적분리화귀위。재근거혼첩자맥충적맥관、폭도、상위등특정,제출료혼첩자맥충적분리방법,진이실현료정개A/C모식맥충천적해혼첩。방진험증료산법적유효성。
Multilateration is a new technology in air traffic control. Anti-jamming technology is important for multilateration systems. Signals for different targets will generate garbles which are main jamming in multilateration. This paper analyzes the features and laws of A/C garbles in time domain, defines pulse aliasing degree and pulse description words, and proposes a new algorithm to separate the aliasing pulses in time domain according to pulse width, amplitude and phase. The A/C transponders are separated totally after sub-pulses are cleared. At last, simulations show the efficiency of proposed algorithm.