Explore MATLAB source code curated for "调制" with clean implementations, documentation, and examples.
Implementation functions for generating 15 types of analog and digital modulation signals with comprehensive parameter control. Key parameters include: type - modulation scheme selection, total_time - total signal duration, fc - carrier frequency, fs - sampling frequency, symbol_rate - symbol transmission rate. The functions employ mathematical modeling of modulation techniques and DSP algorithms for signal synthesis.
This program demonstrates how to implement Pulse Position Modulation (PPM) encoding for wireless optical communication systems, featuring code examples and algorithm explanations.
MATLAB Implementation of GMSK Modulation and Demodulation
Comprehensive MATLAB implementation for 2DPSK signal generation and modulation, including executable code with detailed comments for practical application and performance analysis.
Chaos Communication DCSK Modulation and Demodulation System Implemented with TENT Chaotic Signals
A BPSK modulation and demodulation module constructed with Simulink, featuring model-based design implementations for wireless communication systems.
This project presents a relatively complete simulation design of an OFDM communication system, featuring modules for coding, modulation, IFFT, up/down conversion, Gaussian channel modeling, FFT, PAPR suppression, various synchronization techniques, demodulation, and decoding. The system's reliability is validated through comprehensive performance simulations, with implementation approaches including constellation mapping algorithms, cyclic prefix insertion, and pilot-based channel estimation methods.
This simulation program performs QPSK modulation on a binary information sequence, generates waveform diagrams and power spectral density plots, transmits the signal through a wireless AWGN channel, demodulates it at the receiver, and finally plots the symbol error rate performance curve to evaluate system performance.
GMSK.rar - Complete Simulink-based GMSK Modulation Model with Implementation Code and Documentation
This MATLAB-based program simulates the complete BPSK modulation and demodulation process, generating eye diagrams after filtering for system performance analysis.