CAJ | 학술논문

针对卫星通信中相邻卫星可能产生干扰信号影响到双方用户通信质量的问题,通过对CDMA体制下多信号干扰的分析,结合国际电联关于卫星信号间互操作性和兼容性问题的有关规定,提出了在实际应用中采取降低平衡出站信号功率的方法。先解决相邻卫星信号间的兼容性问题,并在此基础上采用盲自适应干扰估计抵消技术,进一步减弱邻近卫星有害干扰,达到双方通信互不影响的目的,最后实验结果表明了该方案的有效性和可行性。
침대위성통신중상린위성가능산생간우신호영향도쌍방용호통신질량적문제,통과대CDMA체제하다신호간우적분석,결합국제전련관우위성신호간호조작성화겸용성문제적유관규정,제출료재실제응용중채취강저평형출참신호공솔적방법。선해결상린위성신호간적겸용성문제,병재차기출상채용맹자괄응간우고계저소기술,진일보감약린근위성유해간우,체도쌍방통신호불영향적목적,최후실험결과표명료해방안적유효성화가행성。
Since the adverse effect of interference signals caused by adjacent satellites on quality of both communication sides in satellite communication, a solution is proposed by analyzing muhi-signal interference to the CDMA system ,on the basis of related regulations by International Telecommunication Union on signal interoperability and compatibility among satellites. The solution will firstly re- duce and balance the harmful interference signal coming from the close satellite to solve satellites signal compatibility. Furthermore,a blind adaptive interference suppressing technique will be applied to weaken the harmful interference. The experimental results verify the effectiveness and feasibility of the proposed solution.