如今，大多数无线服务都在使用复杂的载波调制方案。调制技术和元器件的持续改进以及纠错码的进步，促使信道容量更加接近香农定理设定的基础极限。那么，调制是什么意思？调制的分类？ 调制是一种将需要传送的信号搬移到高频载波，实现频谱搬移的过程。

本文报道了一种针对短距离数据中心互连的低功耗16-QAM相干光接收机创新方案。研究团队通过设计新型决策导向相位检测器 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The distribution of content involves the need to adapt digital information to its means of ...

Half the bits are represented on the real axis and half the bits are represented on the imaginary axis. The in-phase and quadrature signals are independent level Pulse Amplitude Modulation (PAM) ...

Bit Error Rate Simulation Using 16 QAM Technique in Matlab In this paper, the authors introduce the Bit Error Rate (BER) simulation using 16 QAM (Quadrature Amplitude Modulation) in Matlab. Bit error ...

Modern society is definitely more mobile than it was several decades ago. Accompanying the increased mobility is a corresponding craving for greater quantities of information. The increased demand has ...

March 25, 2014 - FPGA intellectual property (IP) provider IPrium LLC today announced that it has added 128-APSK and 256-APSK (DVB-S2X) constellation support to the QAM Modulator IP Core. The QAM ...