搜索资源列表
jidai_jiekuo
- 扩频通信的基带信号解扩，m序列检测，帧同步，译出原文-Spread spectrum communication baseband signal despreading
WCDMAsim
- WCDMA通信系统仿真matlab 代码，并包含在系统里提取的基带信号-WCDMA communication system simulation matlab code, and includes a baseband signal extracted in the system
OFDM
- ofdm系统仿真的matlab代码，步骤较为详细，并包含从系统里提取的基带信号-matlab code of ofdm system simulation, the steps in more detail, and includes a baseband signal extracted from the system
256
- 数字基带信号通过瑞利信道（rayleichangh），在多径时延的条件下，通过自相关函数看其时延大小。-Digital baseband signal by Rayleigh channel (rayleichangh), under conditions of multipath delay, the autocorrelation function of the delay size.
mysnr
- 一种信噪比估计的方法，在瑞利信道下，对数字基带信号的信噪比估计。-A SNR estimation method under the Rayleigh channel, the digital baseband signal to noise ratio estimate.
16QAm
- 采用MATLAB编程，产生一个16QAM基带信号，并进行实数倍插值计算。要求符号率为1 MSymbol/s，采用均方根升余弦滤波成形，滚降系数=0.5。产生{…1，0，1，1，…}的伪随机序列，经过映射、4倍成形滤波、FIR半带滤波、实数倍内插滤波，最后输出4.315倍时域/频域响应。给出信号序列经过各级滤波的时域、频域结果-Using MATLAB programming, resulting in a 16QAM baseband signal, and the real multiples
my_QPSKmod_201107
- 从基带信号产生——IQ映射——调制——信道加噪——解调——判决及反映射——接收信号输出，每个步骤都画出了图形。-- The IQ mapping- Modulation- channel plus noise- demodulation- judgment and reflect the radio from the baseband signal- to receive the signal output, and each step to draw graphics.
memory_saleh_out
- 采用saleh模型对射频功率放大器进行基带信号建模，能够包含功放的记忆效应和非线性-Saleh model of the RF power amplifier for baseband signal modeling, which can contain the memory effect of the amplifier and nonlinear.
QAM
- QAM调制系统，包括基带信号处理，载波信号处理，眼图误码率等性能分析-QAM modulation systems, including the base band signal processing, the carrier signal processing, the eye diagram of bit error rate and other properties
eetop.cn_LTE-simulation-C
- LTE上行链路仿真C代码,包含CRC添加、信道编码、信号调制、基带信号等~-LTE simulation for the uplink of C code, including CRC added, channel coding, modulation, baseband signal.
cdma2000_Matlab
- 用matlab编写的cdma2000基带信号源的仿真程序,主要实现编码调制部分-Prepared using matlab cdma2000 baseband signal source simulation program, the main code modulation section. .
baseband-transmission-system
- 利用升余弦滤波器来接收基带信号的系统仿真，还有眼图分析-The use of the raised cosine filter to receive the baseband signal system simulation, and analysis of niose
4CPM
- 实现完整的4CPM(h=1/2)调制解调程序，包括消息序列生成，串并转换，升抽样成形滤波，数字上变频，多项式非线性效应，AWGN信道，到接收端数字下变频，降采样，匹配滤波，接收端基带信号星座图。-Message sequence generation, serial-parallel conversion, up sampling shaping filter, digital upconversion, polynomial nonlinear effects, AWGN channel, t
16QAM_matlab
- 实现16QAM完整的调制解调系统，包括基带信号串并转换，星座图映射，升抽样成形滤波，升采样半带滤波，数字上变频，功放的多项式非线性效应，加性高斯白噪声信道，接收端下变频，降采样，匹配滤波，绘制接收端星座图。-16QAM modulation and demodulation realize the complete system, including the baseband signal string and conversion, constellation mapping, samplin
E8_1_QAMModem
- 仿真4比特原始数据与星座图的编码映射过程； 完成16QAM信号的调制解调； 绘制16QAM信号的频谱及时域波形； 采用相干解调法仿真其解调过程； 绘制解调前后的基带信号时域波形； 将原始基带数据、QAM已调数据、滤波器系数写入相应的文本文件中。-Simulation of 4-bit coded mapping process raw data constellation complete 16QAM modulation and demodulation signal
Digital-baseband-signal-
- 数字基带信号的仿真包括双级性信号、单级性信号、pam信号在AWGN信道的仿真-Simulation of digital baseband signal includes a signal of a two-stage, single stage of the signal, pam signal simulation in AWGN channel
GMSK1
- GMSK的调制和解套，显示基带信号和解调信号波形及其频谱图-GMSK modulation and some sort of relief, showing a baseband signal and demodulating the signal waveform and its spectrum
OFDM.m
- 基本OFDM模型，输出基带信号、调制、通过AWGN、解调、判决(Basic OFDM model, baseband signal, modulation, AWGN channel , demodulation and signal recover)
code
- 单、双极性归零码仿真; AMI码和HDB3码仿真; 采用2DPSK调制的数字通信系统(Single and double polarity return zero code simulation; AMI code and HDB3 code simulation; Digital communication system using 2DPSK modulation)
PCM
- 在实际的调谐解调电路中，采用的是非相干载波解调，本振信号与发射端的载波信号存在频率偏差和相位抖动，因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决，得到的数字信号也不是原来发射端的调制信号，误差的积累将导致抽样判决后的误码率增大，因此数字QPSK解调电路要对载波误差进行补偿，减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier