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Alamoutiwork
- 程序的主要功能是做了一定范围的信噪比下,对每个信噪比:随机信号QPSK调制; 根据Alamouti方案的矩阵进行编码;发送信号经过瑞利信道和加入高斯白噪声; 接收信号采用最大比合并的方法;最后对合并信号进行最大似然判决并求误符号率。 结果表明10^-3对应大约12->13dB
dsbpsk_ok
- 采用dpsk方式调制的直扩信号
ADSL
- ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。 本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该 电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。
MATLAB
- 包含调制和解调:1、可输入数字基带信号进行各种参数、各种方式的调制程序,也可读入调制数据。2、对自调制数据或读入的文件调制数据进行调制方式和调制方式的分析,适合正在学习调制解调的人员使用,通过单步运行,详细了解各种调制与解调的原理及工程实现-Include modulation and demodulation: 1, enter the digital baseband signal parameters, the modulation process in various ways, but
matlab程序实现信号的调制与解调功能
- matlab程序实现信号的调制与解调功能,效果良好,已能成功运行。-Matlab signal of modulation and demodulation function, the effect is good, can already successful operation.
Pll
- 锁相环解调调制信号,效果很好,这是电路pcb板-Phase-locked loop demodulation modulation signals with good results, this is the circuit board pcb
DSBmatlab
- 幅度调制,双边带信号产生、双边带调幅的时域表示式及频谱-Amplitude modulation (AM),double side-band signal generation,the time domain expression and frequency spectrum of double side-band Amplitude modulation
fskd
- FSK 调制 Matlab 自带的FSK调制解调是产生的是基带信号,本程序仿真实现FSK的载波实现形式
qpsk--tiaozhi--yiji--jietiao
- QPSK信号的调制及解调实验,使用MATLAB语言实现-QPSK signal modulation and demodulation, using the MATLAB language
Modulation
- 此程序涵盖了常见的五种参数的生产程序,并有常见的数字信号的调制生产程序-This program covers the five common parameters of the production process, and a common production process digital signal modulation
yuandaima
- matlab环境下的残留边带条幅信号的调制与解调,绘出频率密度-matlab environment vestigial sideband modulation and demodulation signal banners, frequency density plot
costas_pYll_qpsk_1
- 这是一个costas实现的QPSK解调器,这个解调器可以实现一个QPSK调制信号的解调!-it is about a demodulator for QPSK!
Digital_Communication
- 生成多种调制方式信号的matlab仿真例程,2ASK,2PSK,2FSK,2DPSK-Generate a variety of modulation mode signal of matlab simulation routines, 2 ASK, 2 PSK, 2 FSK, 2 DPSK
mod.c
- 用C 写的 ASK, FSK, PSK, QAM 数字调制技术模拟,画出了调制后的信号,GUI 界面操作-a simulation about ASK, FSK, PSK AND QAM modulation, GUI interface is used for operation.
OFDM-communication-system-simulation
- 仿真实现OFDM调制解调,在发射端,经串/并变换和IFFT变换,加上保护间隔(又称“循环前缀”),形成数字信号,通过信道到达接收端,结束端实现反变换,进行误码分析-Simulation OFDM demodulation, in the launch, the string of/and transform and IFFT transform, plus protection interval (also called "circulation prefix"), forming a digi
demo_for_DSB_AM
- DSB-AM方式,进行信号的调制和解调 输出1:已调信号的波形 输出2:消息信号和已调信号的频谱 输出3,恢复信号的波形- DSB-AM mode, the output signal modulation and demodulation 1: of the output waveform of the modulated signal: the message signal and the spectrum of the modulated signal outpu
test4
- 低频信号的2ASK调制解调,信道是理想信道-The low frequency the signal 2ASK modem, the channel is an ideal channel
g2bpsk
- G2 STBC码的发送分集程序,采用BPSK 调制,最大似然恢复原始信号-G2 STBC transmission diversity program code using BPSK modulation, the maximum likelihood to recover the original signal
GMSK-Modem
- GMSK信号调制和解调的仿真代码,包含一比特差分、2比特差分、鉴频等常用GMSK解调方案。-Modem matlab file for GMSK modulation and demodulation. The demodulation methods including one-bit differential and two-bit differentian decoding and frequency discrimination.
GMSK-Modem-matlab
- GMSK信号调制和解调的仿真代码,包含一比特差分、2比特差分、鉴频等常用GMSK解调方案.之前上传的GMSK Modem差分相干、2比特差分解调存在问题。-GMSK demodulation schemes including one bit differential decoding, two bit differential decoding, differential coherent and digital frequency discriminating methods.