CAJ | 학술논문

Turbo 码在数字通信领域应用广泛。针对 Turbo 码的盲识别问题，给出了码块长度、码字起点、子编码器和交织器的识别方法。引入信息熵对矩阵分析法进行改进，以减小误码对码块长度和码字起点识别的影响，并采用 Walsh?Hadamard变换法对子编码器生成矩阵进行识别，给出了一种改进的穷举对比法识别交织关系。仿真结果表明，以上算法能有效识别 Turbo 码各参数。
Turbo 마재수자통신영역응용엄범。침대 Turbo 마적맹식별문제，급출료마괴장도、마자기점、자편마기화교직기적식별방법。인입신식적대구진분석법진행개진，이감소오마대마괴장도화마자기점식별적영향，병채용 Walsh?Hadamard변환법대자편마기생성구진진행식별，급출료일충개진적궁거대비법식별교직관계。방진결과표명，이상산법능유효식별 Turbo 마각삼수。
For the blind recognition problem of Turbo codes,emphasis is placed on research of code block length,code word start?ing point,sub?encoders and interleaver.Firstly,to reduce the impact of errors on code length and code word starting point recognition, information entropy is introduced into the method based on matrix analysis.Then the Walsh?Hadamard transform is adopted to recognize generator matrix of sub?encoders.On the basis of the above research,an improved enumerative comparison method is proposed to recog?nize interleaving relationship.The simulation results show that these algorithms can effectively achieve the recognition goals.