公开(公告)号：KR1020140032190A

公开(公告)日：2014-03-14

申请号：KR1020120098777

申请日：2012-09-06

Applicant: 한국전자통신연구원

Inventor： 김청섭 ,  태기철 ,  김강희 ,  강흥용 ,  손수호 ,  최용석 ,  최재익

IPC: H04L27/38 ,  H04L27/00 ,  H04L25/03

CPC classification number: H04L27/38 ,  H04L27/0012 ,  H04L27/10 ,  H04L27/18 ,  H04L27/00 ,  H04L27/0008 ,  H04L27/02 ,  H04L27/04 ,  H04L2025/03394 ,  H04L2025/03401

Abstract: The present invention relates to a practical design of an algorithm in which modulation schemes are automatically classified for a target signal in the state that the information of the target signal cannot be known. In general, most conventional automatic classification algorithms may be not applied to signals under actual environment states such as hostile communication and restrict a target signal because the algorithms are suggested under the assumption that information of the signal is previously known to some extent. In addition, the automatic modulation scheme classifying algorithm may be not designed without recovering a propagation frequency. The present invent suggests a scheme of determining a modulation index (M) of the target signal without complex computations by using the characteristic of an auto correlation function after classifying the signal into a PSK (single carrier) class signal and an FSK (variant carrier) class signal by utilizing a phase difference of an input signal in order to effectively acquire the information of the target signal. [Reference numerals] (AA) unknown signal; (BB) PSK class; (CC) FSK class

Abstract translation: 本发明涉及一种算法的实际设计，其中在目标信号的信息不能被知道的状态下，调制方案被自动分类为目标信号。 通常，大多数传统的自动分类算法可能不适用于诸如敌对通信之类的实际环境状态下的信号，并且限制目标信号，因为在某种程度上先前已知该信号的信息的假设下建议算法。 此外，自动调制方式分类算法可以不设计而不恢复传播频率。 本发明提出了一种在将信号分类为PSK（单载波）等级信号和FSK（变型载波）之后，通过使用自相关函数的特性来确定目标信号的调制指数（M）而不进行复杂计算的方案， 通过利用输入信号的相位差来实现等级信号，以有效地获取目标信号的信息。 （标号）（AA）未知信号; （BB）PSK类; （CC）FSK类

公开(公告)号：KR101145097B1

公开(公告)日：2012-05-14

申请号：KR1020090052912

申请日：2009-06-15

Applicant: 한국전자통신연구원

Inventor： 박형근 ,  김청섭 ,  태기철 ,  손수호 ,  최용석

IPC: H04B1/40 ,  G06F17/14 ,  H04L27/26

Abstract: 본 발명은 다중 채널 하향 변환기 및 다중 채널 하향 변환 방법에 관한 것으로, 구체적으로는 단 한번의 FFT(Fast Fourier Transform) 연산으로 필터링을 대체하여 복수 개의 협대역 채널을 생성함으로써 수반되는 하드웨어의 복잡도를 현저하게 줄일 수 있다.
FFT, 다중 채널 하향 변환기, 광대역, 협대역, 다중 채널 분석 시스템