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用matlab设计一个抽取率为2的CIC抽取滤波器
- 用matlab设计一个抽取率为2的CIC抽取滤波器和插值率为2的插值滤波器,Using matlab to design a decimation rate of 2 of the CIC decimation filter and interpolation rate of 2 of the interpolation filter
code
- 随机产生长度大于1000的‘0’、‘1’信号序列,对其进行BPSK,QPSK,16QAM调制,给出: 1)低通滤波器后的波形(只画10个周期); 2)信号眼图,对其进行讨论(画出5个信号周期); 3)信号带内、带外功率谱密度(低通滤波器参数自定),并对其进行讨论。 -Generated OVSF code
costas_carrier_recover
- 基于硬件定点的完整的costas载波恢复环设计,FPGA设计可以用之参考。包括输入QPSK信号,16倍符号率采样,初始频差2.4KHz,以及低通滤波器的设计等待。最重要的是有本人的注释,易于上手。-Hardware-based fixed-point of complete costas carrier recovery loop design, FPGA reference design can be used. Including input QPSK signal, 16 times th
Pulse_Shaping
- 脉冲成型滤波器,用来是形成的频谱更加光滑,得到更好的仿真效果,用于CDMA,WCDMA,和 TDSCDMA中-Pulse shaping filter is used to form the spectrum is smoother, better simulation results, for CDMA, WCDMA, and TDSCDMA in
demo_SquareRootNyquistFilterDesignSoftware
- 数字通信中的平方根Nyquist滤波器设计,含说明文件和matlab仿真代码-The square root Nyquist digital communication filter design, including documentation and matlab simulation code
grd_test
- xwch_test.m是主测试文件;biaoji.mat存放滤波器系数;xiangweicha.m用FFT计算相位差。 仿真框架为: 1.标记信号和双音信号续接作为发送信号; 2.对双音中一个频率分量的相位做偏移,再经过一个低通滤波器(引入线性相位,模拟收发不能同步测量现象)后,作为收到的信号; 3.用一个检测信号对收发信号进行相关运算; 4.画出收发信号以及相关处理后的信号。找出相关信号的那个尖点,从而推算出收发双音信号0相位点; 5. 输入0相位点位置,计算
64QAM_baseband-system-transmitter
- 产生64QAM基带通信系统发射机:基带成型滤波采用3种方式(1)采用每个符号调制一个成型滤波函数,然后将各个函数进行时域叠加的方法; (2)采用信号与低通滤波器响应函数卷积的方法;(3) matlab自带的升余弦函数-Produce 64QAM baseband communication system transmitter: baseband shaping filter uses three ways (1) the use of a molding each symbol modul
64QAM_baseband_system_receiver
- 64QAM基带系统接收机matlab代码:添加AWGN噪声,进行接收端匹配滤波器,8倍下采样,解调信号。-64QAM baseband system receiver matlab code: add AWGN noise, matched filter receiving end, eight times the down-sampling, the demodulated signal.
Desktop1
- 用MATLAB画平方根升余弦脉冲波形(滤波器模型与仿真方法)-Using MATLAB painting square root raised cosine pulse waveform (filter model and simulation methods)
发送滤波器
- 主要包括升余弦脉冲滤波器、平方根升余弦滤波器、 高斯滤波器(It mainly consists of raised cosine pulse filter, square root raised cosine filter and Gauss filter)