一种基于功率谱的数字调制信号自动识别参数

通信监听技术是现代通信技术研究中的一个重要分支,其在军事以及民用领域都有较大的应用前景。由于带宽限制,基带信号总是以经过调制后的状态在信道中传输,因此,调制方式辨识是通信监听领域的关键技术之一,本文以数字通信信号调制方式自动辨识技术为研究课题,提出一种基于信号功率谱分析的特征参数,可以用于区分ASK与FSK/PSK信号,以及FSK与PSK信号。

communication monitoring technology is an important branch in the study of modern communication technology, its applications in military and civil field has great prospects. Because of bandwidth limitations, after modulation baseband signal is always in the state of the transmission in the channel, therefore, modulation mode identification is one of the key technologies in the field of communications monitoring, automatic identification technology based on digital communication signal modulation way as the research subject, put forward a kind of based on the characteristic parameters of signal power spectrum analysis can be used to distinguish with FSK/PSK signal, ASK, FSK and PSK signal.