DRM(Digital Radio Mondiale)系统采用OFDM调制方式， 引入了先进的信源信道编码和调制技术，使得AM波段的音频广播质量大大提高，在保持现有10kHz带宽时接近了FM广播的质量[5]-DRM (Digital Radio Mondiale) system uses OFDM modulation, the introduction of advanced source-channel coding and modulation techniques, making AM-

Gnu Radio Companion 的操作以及解调 AM 信号的方法。附带data。-This tutorial is a guide to receiving AM signals. It uses a data file that contains several seconds of recorded signals the AM broadcast band. This data file was obtained the USRP. If you have a USRP

Superheterodyne refers to a method of designing and building wireless communications or broadcast equipment, particularly radio receivers. Sometimes a receiver employing this technology is called a superheterodyne or superhet. -Superheterodyne refers