CAJ | 학술논문

提出一种基于分层的矩阵秩特征的判别方法，解决了等帧长帧同步的盲识别问题。首先构造等帧长帧识别的分层模型，然后在各子层中利用小区域矩阵秩值等于1的特征寻找可能的帧长值，统计各可能帧长值出现的概率判断真实帧长值，最后将序列按照所求帧长的方式构造矩阵，判定满足特定秩值搜索窗的位置和移动搜索窗的距离获取同步信息，达到帧同步盲识别目的。理论分析了搜索窗宽度对识别算法的影响，并推导了算法容错性，得出了算法具有很好的鲁棒性，能够满足非合作的盲识别的要求。仿真结果验证了算法的有效性，表明算法具有一定的工程应用价值。
제출일충기우분층적구진질특정적판별방법，해결료등정장정동보적맹식별문제。수선구조등정장정식별적분층모형，연후재각자층중이용소구역구진질치등우1적특정심조가능적정장치，통계각가능정장치출현적개솔판단진실정장치，최후장서렬안조소구정장적방식구조구진，판정만족특정질치수색창적위치화이동수색창적거리획취동보신식，체도정동보맹식별목적。이론분석료수색창관도대식별산법적영향，병추도료산법용착성，득출료산법구유흔호적로봉성，능구만족비합작적맹식별적요구。방진결과험증료산법적유효성，표명산법구유일정적공정응용개치。
A novel approach of blind identifying of the frame synchronization based on the feature of hierarchical matrix rank discriminant is proposed in this paper.Firstly the frame size frame identification is constructed,such as a layered model,and then use the sub-layer in a small area to solve the matrix featrues a rank equal to the value of looking for possible frame size. Secondly statistical probability of each possible frame size appears to detemine the true value of frame length value. Finally,accordding to the frame length,construct the sequence into matrix,the distance is determined to satisfy the specific rank value of the search window position and movement of acquiring synchronization search window frame length,the purpose of identifying the frame synchronization information to the blind.Theoretical analysis of the impact of identification algorithm of the search window width and pushend to the algorithm of fault-to-tolerant,robust algorithm derived,it can meet the requirements of the non-coorporation of the blind identification.Simulation results show that the proposed method has some strong points as high robustness ,fast effectiveness and accurate recognition,and indicates that the method has a certain value in future engineering application.