调制技术（Modulation）是现代通信系统的核心，通过改变载波信号的幅度、频率或相位来传输信息。广泛应用于无线通信、广播、雷达和卫星通信等领域，是提高信号传输效率和抗干扰能力的关键。本页面汇集了207个精选资源，涵盖AM、FM、PM等多种调制方式，深入解析其原理与实现方法，助力电子工程师掌握这一...
Modify the Gray-coded modulation example (COMMDOC_GRAY) so that it uses a pair of square root raised cosine filters to...
The software is capable to simulate space time code [1] for QPSK modulation using different number of state. Examples of...
gmsk modulation of numerical data generated by a random source, the output of the modulator give two signals, the first ...
OFDM(正交频分复用)技术实际上是MCM(Multi-Carrier Modulation，多载波调制)的一种。其主要思想是，将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过...
This file is a function under matlab which allow to compute and plot Amplitude modulation : AM. We can observe the effec...
It describes the main differences between DVB-S and DVB-S2. Key words: DVB-S.2, Modulation, QPSK, 8PSK, 16APSK, 32APSK,...
By using a MATLAB program, design a Delta Modulation (DM) system with one step-size and a modified DM system with two st...
Demonstration script for LSSB-AM modulation. The message signal is +1 for 0 < t < t0/3, -2 for t0/3 < t < 2...
PWM（Pulse Width Modulation）控制——脉冲宽度调制技术，通过对一系列脉冲的宽度进行调制，来等效地获得所需要波形（含形状和幅值）...
使用QPSK调制的正交频分复用（OFDM）系统的Simulink仿真OFDM Implementation using QPSK Modulation。...