CAJ | 학술논문

在非合作通信领域中,侦察方在信道解码后需要对扰码编码参数进行盲估计以实现解扰,进而恢复出原始信息.在信源不平衡的条件下,针对自同步扰码的盲识别问题,以比特状态统计概率分布与均匀分布之间的修正平方欧几里德距离作为比特状态不平衡性的衡量准则,提出了一种自同步扰码生成多项式的盲识别方法,仿真结果验证了理论分析的正确性和所提算法的实际有效性.
재비합작통신영역중,정찰방재신도해마후수요대우마편마삼수진행맹고계이실현해우,진이회복출원시신식.재신원불평형적조건하,침대자동보우마적맹식별문제,이비특상태통계개솔분포여균균분포지간적수정평방구궤리덕거리작위비특상태불평형성적형량준칙,제출료일충자동보우마생성다항식적맹식별방법,방진결과험증료이론분석적정학성화소제산법적실제유효성.
In non-cooperative communication systems, an adversary has to blindly estimate the coding parameters of scrambler from intercepted sequence. On the condition of biased information source, a new method was proposed which can blindly recover the generating polynomial of self-synchronized scrambler. This method was based on the corrected squared Euclidean distance which was used to measure the distance between the actual statistical probability and the uni-form distribution. The simulation results verify the theory analysis and the validity of the algorithm.