搜索资源列表
BPSK
- 实现了BPSK信号的调制与解调,以及同步载波的提取-Achieve BPSK modulation and demodulation of the signal, and the extraction of carrier synchronization
qam
- 16qam,成型滤波器,加入载波,高斯噪声,调制解调多个星座图等 -16qam, shaping filter, adding the carrier, Gaussian noise, such as modem over Constellation
scfde
- 单载波频域均衡的完全编码,包括了调制解调,独特字,传输模拟,信道估计,频域均衡器设计等等完全的理论。-Single-carrier frequency domain equalization, including modulation/demodulation, unique words, transmission simulation, channel estimation, frequency-domain-equalizer design, etc.
tttttttttt
- QPSK调制解调的仿真图形,有调制前基带信号和两个支路信号,还有调制载波后的图形-QPSK modulation and demodulation of the simulation graph, a baseband signal before modulation and two branch signals, as well as the graphics after the modulated carrier
OFDM_rece_matlab
- 一个OFDM符号128个有效符号,插入128个虚拟子载波 符号率(即有效数据率)fsymbol,而发送速率(需要包括虚拟子载波)2fsymbol 输入的数据需要2倍的发送数据率,以便进行内插,实现位定时跟踪,即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 , Guard Interval点 =Ng*2=64 - a OFDM symbol 128 effective s
pulse-generate
- 本程序是矩形波的产生。第零步定义了要产生的波形的所有特征参数,矩形波的持续时间WIDTH,矩形波的采样点数POINTS,载波频率为F0,这个频率的最终引入是便于使用RF频率发射波形。第一步包括产生矩形波,并将其调制到RF上,注意,产生的信号的持续时间是矩形波宽度的5倍,这样,总的采样点数就是5*POINTS。同时还应注意,如果要产生一个基带信号,必须设置T0=0.第二步是画出所产生矩形波的源代码。- This procedure is rectangle wave production. Ste
TU45
- 给出了不同分割数量V条件下的系统的PAPR性能,分割方法为随机分割,辅助相位集合的相位数P=4(即 可选择的范围为{0,π/2,π,3π/4}),N=128,子载波采用QPSK调制,仿真的OFDM符号数为1000个。-V gives the number of different partitions of the system under PAPR performance of random segmentation segmentation, the number of secondary
sandiansan
- 给出k=1,2,3,4的OFDM系统使用改进的次优化算法时的PAPR性能。仿真参数:子载波数为64,QPSK调制,r=3,V=4,P=4,取 ,分割方法为交织分割,仿真的OFDM符号数为1000个。-Gives k = 1,2,3,4 of the OFDM system uses an improved PAPR when the sub-optimal algorithm performance. Simulation parameters: number of subcarriers 64
t4
- 图4.7给出了V=4,相位集合的相位数分别为P=1、2、4、8时的随机分割的PTS-OFDM系统的CCDF的性能图。仿真参数:分割方法为随机分割,子载波数N=128,子载波数据采用QPSK调制,仿真的OFDM符号数为1000个。-Figure 4.7 shows the V = 4, the phase of the collection phase, respectively P = 1,2,4,8 were separated when the PTS-OFDM system perform
ptsgai
- 给出了r=1,2,3,4的OFDM系统使用改进的次优化算法时的PAPR性能。仿真参数:子载波数为64,QPSK调制,V=4,P=4,取 ,分割方法为交织分割,仿真的OFDM符号数为1000个,迭代次数k=1。-Gives r = 1,2,3,4 of the OFDM system uses an improved algorithm for sub-optimal performance when the PAPR. Simulation parameters: number of subca
u-law-CCDF-N=128
- 程序仿真得图为原信号与u律压扩信号的互补累积函数曲线图。仿真参数:子载波N=128,采用QPSK调制。-The photo shows the original simulation program was u-law signal and the signal of the complementary cumulative function expansion curve. Simulation parameters: sub-carriers N = 128, using QPSK modu
the-Costas-loop-
- 用MATLAB SUMULINK仿真 抑制载波双边带调制的科斯塔斯环载波恢复和解调模型-Simulation with MATLAB SUMULINK carrier suppression double sideband modulation of the Costas loop carrier recovery and demodulator model
adaptive_filter
- 基于LMS的自适应滤波器的算法实现,该算法以数字调制信号为理想信号,并在已知载波频率的基础上,通过自适应滤波器实现数字调制信号的跟踪。-Adaptive Filter Based On LMS Algorithm
GMSK
- Matlab实现GMSK,包括基带信号,载波,和GMSK调制信号-matlab GMSK
AM
- AM调制,利用载波查表,基带信号,C语言实现功能-AM using table for carrier and baseband signals
ofdm1
- 由MATLAB程序产生2Gbi/s的基带OFDM信号先将2^15-1个伪随机序列映射到256个进行4QAM编码调制的子载波上,编码后的OFDM符号再经过IFFT变换将其转换为时域波形,接着添加6.4ns的循环前缀(CP),产生的数据波形再装载到Tektronix任意波形发生器(AWG)中,产生2Gbit/s的基带OFDM信号。基带OFDM信号频谱示意图如图3所示。其中包括256个OFDM子载波256个子载波中200个子信道用来传送数据信号,27个高频和28个低频子信道为了过采样的需要置0,OFD
ocs-dpsk
- 利用目前最顶级光通信仿真软件VPI平台,此程序可以仿真实现在光载射频系统中的抑制载波差分相移调制(OCS-DPSK)调制格式-Optical communications using the most top VPI simulation software platform, this program can be simulated to achieve the optical carrier suppressed-carrier RF systems in the differential
qam_MATLAB_simulation
- demodulate_sig 解调 generate_noise 叠加高斯噪声 insert_value 插值 modulate_to_high 调制到载波 pick_sig 采样 plot_2way 绘制正交信号图 plot_astrology 绘制星座图 plot_snr 绘制误码率曲线图 project 主函数 Qam_modulation QAM调制函数 rise_cos 升余弦滤波 stem_2way 绘制滤波后的信号图 -qam
OFDM-LSandDFT-channel-estimation
- OFDM系统中载波,调制,IFFT,LS、DFT信道估计,FFT,解调-OFDM systems carrier, modulation, IFFT, LS, DFT channel estimation, FFT, demodulation
QAM
- QAM是一种矢量调制,将输入比特先映射(一般采用格雷码)到一个复平面(星座)上,形成复数调制符号,然后将符号的I、Q分量(对应复平面的实部和虚部,也就是水平和垂直方向)采用幅度调制,分别对应调制在相互正交(时域正交)的两个载波(cos wt和sin wt)上-QAM is a modulation vector, the first mapping the input bits (Gray code commonly used) to a complex plane (constellation