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Analysisofblinddatahidingusingdiscretecosinetransf
- Analysis of blind data hiding using discrete cosine transform phase modulation。
2ASK的调制与解调及其功率谱的接收
- 2ASK的调制与解调及其功率谱的接收-2ASK modulation and demodulation and the power spectrum receiver
qpsk
- QFSK的调制与解调,用C写的主程序,汇编写的调制与解调的子程序-QFSK the modulation and demodulation, with the main program in C, compile writing, the modulation and demodulation of the Subprogram
info469
- 本书内容由三部分组成。第一部分介绍信息论与信息科学的基本知识, 第二部分介绍 Shannon 信息论的基本内容,第三部分介绍信息论的应用。本书叙述力求通俗简练,较长的定理证明将通过指定参考书给出,各章附有习题与注解说明。对大型的练习,如无失真数据压缩编码、有失真图象压缩编码、调制编码及其他编码技术作者编制了若干个大型的练习试验,作为信息论理论教学的补充与尝试,有条件的学校可以开设。~..~-contents of the book consists of three parts. The fir
数字视频图像传输系统实现中几个问题的研究
- MATLAB程序的仿真比较。随后,针对QPsK,详细讨论了其基本原理和具体的实现算法,并进行了仿真验证,然后选用HSP502巧数字上变频芯片和HSP50214B数字下变频芯片,设计了数字调制、解调器的实现方案。最后,作为对整个数字视频图像传输系统的宏观认识,利用M户JLAB中的实时建模仿真Simullnk库对典型的视频图像传输系统一数字视频广播系统(D vB),进行了建模、仿真和初步的分析,结果表明:在高斯白噪声的传输环境下,系统采取的一系列抗干扰措施,包括内、外码级联的信道纠错编码和先进的调制
完整的QAM调制解调实现
- 完整的QAM调制解调实现,可以解调16QAM,32QAM,64QAM,Complete QAM modulation and demodulation implementation, you can demodulation 16QAM, 32QAM, 64QAM
OFDM的MATLAB系统仿
- OFDM的MATLAB系统仿真,使用QPSK调制、梳状导频LS信道估计,并且还进行了LS和MMSE信道估计方法的性能比较,MATLAB simulation of the OFDM system, QPSK modulation, combed pilot LS channel estimation, and performance comparison of LS and MMSE channel estimation
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
PSK.16PSK的调制与解调的程序
- 一个16PSK的调制与解调的程序,能够画出星座图和加如高斯白噪声信道,A 16PSK of modulation and demodulation process, to draw the constellation diagram and processing, such as Gaussian white noise channel
bpsk1.rar
- 介绍qpsk调制的代码!初学者可以参考参考!比较简单.,Introduction QPSK modulation code! Beginners can refer to reference! Relatively simple.
LFM.rar
- matlab,线性调频信号,脉冲压缩,雷达信号仿真,matlab, linear frequency modulated signal, pulse compression, radar signal simulation
DSSS.rar
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
bpsk.rar
- 用C++实现BPSK的仿真,包括信源,调制,信道,解调,计算误比特率,Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation
random_fh_simulatin.rar
- 利用MATLAB实现了跳频信号的调制和解调,给出了频谱图。,The use of MATLAB implementation of the frequency hopping signal modulation and demodulation, give the frequency spectrum.
bfsk.rar
- 通信中BPSK调制的MATLAB实现(附带库函数说明)。,BPSK modulation communication MATLAB to achieve (with library function descr iption).
csd_of_communication_signals.r
- 对数字调制信号计算循环谱相关,并画出三维图以及二位截面图,Digital modulation signal to the cycle spectral correlation calculation, and draw three-dimensional map, as well as two sections
stbc21.rar
- Alamouti双天线发射分集方案的源程序,可实现任意psk调制,Two-antenna Alamouti transmit diversity program source code, can be arbitrary psk modulation
amfmdsbmoddemod.rar
- am,fm,dsb,调制和解调程序以及它们的性能分析,am, fm, dsb, modulation and demodulation process, as well as their performance analysis
xinhaofashengqi
- 信号发生器,可输出三角波,方波,锯齿波,可调频调幅-Signal generator output triangle wave, square wave, sawtooth wave, frequency modulation amplitude modulation can be
CC_BPSK
- 通信系统的仿真,卷积码是纠错码的一种,可以用于数字电视,手机等通信领域,本例子给出了基于matlab的程序,卷积码BPSK调制。-Simulation of communication systems, convolutional code is an error-correcting code can be used for digital television, mobile phones and other communications, the examples given based