CAJ | 학술논문

在现代无线通信系统中，采用正交空时分组码(STBC)的多天线发射技术是提高通信速率和可靠性，并且能够实现简单译码的关键技术。该文针对瑞利信道系统模型，提出一种适用于多入单出正交空时分组码(OSTBC)的调制识别算法。该算法通过对接收到的数据进行重排，将多入单出的系统模型转化为类似多入多出的系统模型，并且根据信源的特殊性用最大似然的思想实现调制类型的识别。仿真结果验证了所提算法的有效性。
재현대무선통신계통중，채용정교공시분조마(STBC)적다천선발사기술시제고통신속솔화가고성，병차능구실현간단역마적관건기술。해문침대서리신도계통모형，제출일충괄용우다입단출정교공시분조마(OSTBC)적조제식별산법。해산법통과대접수도적수거진행중배，장다입단출적계통모형전화위유사다입다출적계통모형，병차근거신원적특수성용최대사연적사상실현조제류형적식별。방진결과험증료소제산법적유효성。
In modern wireless communication systems, multiple-antenna-transmitting in association with Orthogonal Space-Time Block Code (OSTBC) is a key technology to improve communication rate, reliability, and decoding complexity. In this paper, a modulation identification algorithm is proposed which is well suitable for the Multiple Input Single Output (MISO)-OSTBC system. First, the MISO system is transformed into a Multiple Input Multiple Output (MIMO) system by reshaping the received data. Then, maximum likelihood based approach is used to identify the modulation. Simulations validate the effectiveness of the proposed algorithm.