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发射部分采用锁相环式频率合成器技术
- 发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。,Part of the launch phase-locked loop frequency synthesizer using technolog
square_syn
- 平方环载波同步法FPGA实现的verilog代码-square loop carrier wave syn
san_PSK
- 三阶锁相环PSK信号的设计与实现，具有载波跟踪效果-Design and implementation of third-order phase-locked loop PSK signals with carrier tracking results
power_3phpll
- 锁相环电源设计，产生单载波信号，便于跟踪锁定-Phase-locked loop power supply design, produce single-carrier signal, to facilitate tracking lock
MPSK-
- MPSK信号基于高阶循环谱估计载波频率matlab的代码-MPSK signals based on higher-order loop carrier frequency spectrum estimation matlab code
costas
- 基于costas环的通信系统载波同步技术的实现，matlab仿真源代码及结果分析-Realization of communication system for carrier synchronization technique based on Costas loop
costas-loop
- QPSK调制后进行载波同步，对频偏进行修正，锁定频率。最后误差波形收敛-After QPSK modulation carrier synchronization, frequency offset correction, locking frequency. The last error waveform convergence
changgui_msk_costasKd
- 这个程序用于信号处理中，载波同步算法里相位同步的经典算法——costas环。该程序便用costas环来实现相位的同步。-This program is used in signal processing, classical algorithm for phase synchronization in carrier synchronization algorithm costas loop. Phase synchronization will be implemented by cos
科斯塔斯环
- 仿真实现，锁相环的跟踪与实际载波频率的仿真与对比，信号的调制与解调。(The simulation and comparison between the tracking of the phase-locked loop and the actual carrier frequency are simulated, and the modulation and demodulation of the signal are presented.)
BPSK_Costas
- 使用科斯塔环的方法实现基于BPSK调制的载波恢复跟踪(Using Costas loop method to recovery and track carrier frequency of BPSK modulation signal)
xianggan
- 使用costas锁相环实现载波同步提取相干载波，可以自由设定初始数据(Using Costas phase locked loop to realize carrier synchronization extraction of coherent carrier, the initial data can be set freely.)
Lpfilter_20190503
- 环路滤波器是通信信号调制解调中最重要的一个部分，环路滤波器设计的好坏将直接影响到接收机的性能指标，二阶锁频辅助三阶锁相环路滤波器可以稳定跟踪具有加加速度的信号源，是现代通信中非常实用的技术，本文中详细编写了单载波信号产生模块、信道噪声模块、数字正交下变频模块、鉴频鉴相模块、环路滤波器模块，并包含了完整的testbench模块，对于初学者非常有用。(Loop filter is the most important part of communication signal modulation a