Explore MATLAB source code curated for "载波同步" with clean implementations, documentation, and examples.
This MATLAB program implements a Costas loop simulation for carrier synchronization, featuring carrier frequency tracking capabilities with performance analysis and graphical comparisons. The implementation demonstrates key signal processing algorithms including phase detection and loop filtering.
MATLAB implementation of OFDM system simulation featuring cyclic prefix-based symbol timing synchronization and carrier frequency synchronization algorithms
This program implements carrier synchronization through a squaring loop architecture, employing a phase-locked loop (PLL) for precise phase offset tracking with digital signal processing techniques.
Implementation of carrier synchronization using Costas loop with carrier frequency tracking curve visualization and code-based algorithm explanation
Implementation of carrier synchronization using Costas loop with transmitter carrier frequency at 3.563 MHz and local initial frequency at 3.5628 MHz. The loop filter parameters C1 and C2 are directly provided in the program for immediate implementation. The algorithm employs phase detection and feedback control to achieve frequency alignment through iterative correction.
MATLAB simulation of BPSK Costas loop carrier synchronization with code implementation and performance analysis
This is an excellent MATLAB simulation program for CP-based maximum likelihood symbol timing synchronization and carrier synchronization in OFDM systems. Developed through in-depth study of classical literature and extensive programming debugging, the code is refined, well-organized, and error-free. The synchronization curves obtained from this simulation perfectly match those in classical references. The implementation features efficient correlation algorithms using cyclic prefix properties and handles frequency offset estimation with maximum likelihood detection. For an OFDM system with N=1024 subcarriers as required by the literature, the program runs in approximately 2-3 minutes.
This program simulates a phase-locked loop (PLL) with receiver-side carrier synchronization capability. The code features comprehensive comments and follows standard programming practices. The implementation supports three modulation schemes at the transmitter: single-carrier modulation, BPSK modulation, and QPSK modulation. The simulation generates constellation diagrams, PLL frequency/phase error plots, and demodulated baseband waveforms for analysis.
This paper presents a simplified OFDM-UWB baseband transmission model developed in MATLAB, analyzes synchronization requirements, and implements a joint synchronization algorithm based on the S&C method for simultaneous carrier and frame synchronization, demonstrating effective BER reduction.
This implementation utilizes a phase-locked loop (PLL) to achieve high-performance carrier synchronization, demonstrating effective signal tracking and recovery in communication systems through MATLAB's digital signal processing capabilities.