CAJ | 학술논문

当前测控系统普遍采用的伪码测距体制中存在距离模糊问题和同步捕获问题，并且两者的性能要求是矛盾的。利用混沌信号的非周期、自同步和良好自相关特性，提出了将连续混沌信号作为测距信号应用于航天测控系统的方法，分析了该体制的工程应用可行性，并进行了仿真试验，给出了改进相关性能的方法。混沌测距方法相对于伪码测距的优势在于，混沌的同步特性能够自动实现测距信号的同步，省略了测距信号的捕获过程；混沌的非周期性消除了距离模糊。连续混沌信号在测控系统中的应用是可行且有优势的。
당전측공계통보편채용적위마측거체제중존재거리모호문제화동보포획문제，병차량자적성능요구시모순적。이용혼돈신호적비주기、자동보화량호자상관특성，제출료장련속혼돈신호작위측거신호응용우항천측공계통적방법，분석료해체제적공정응용가행성，병진행료방진시험，급출료개진상관성능적방법。혼돈측거방법상대우위마측거적우세재우，혼돈적동보특성능구자동실현측거신호적동보，성략료측거신호적포획과정；혼돈적비주기성소제료거리모호。련속혼돈신호재측공계통중적응용시가행차유우세적。
The shortcomings of the pseudo code telemetry, tracking and command ( TT&C ) is discussed. There are range ambiguity and synchronization acquisition problems in pseudo code TT&C. The idea of ap-plying continuous chaos signal to aerospace TT&C is proposed,moreover,the theoretical scheme is estab-lished and the merits of the proposed method are pointed out. Driven by the transmitted signal,the receiv-ing terminal is automatically synchronized with the transmitting terminal with omitting the phase searching and acquiring progress in the pseudo-random code ranging. The aperiodicity of chaos signal solves the am-biguity problem in the pseudo-random code ranging. The analysis results show that the application of con-tinuous chaos signal in TT&C systems is feasible and advantageous.