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demodulation
- 由信道信号的复数值找出对应的二进制序列。方法如下：由信道值，求出该值与星座图中所有点的距离，找出距离最小的点，该点对应的二进制序列及为该信道对应的解调结果。-this program is used for BPSK,QPSK,16QAM and 64QAM demodulation.
junfangzhi102x
- 描述了混沌的序列的优选，如何利用均方根值进行优选。-Describes the preferred sequence of chaos, how to make use of root-mean-square value optimization.
mseq
- 根据m序列的原理，用于产生任意位的小m序列。-According to the principle of m sequences, used to generate random bit sequence of the small m.
DS-CDMA_matlab_code
- DS-CDMA 直接序列扩频访真 fDSCDMA_Pe_ebno_awgn_m_seq_MUD_Decorr fDSCDMA_Pe_ebno_awgn_m_seq_MUD_MLD fDSCDMA_Pe_ebno_awgn_m_seq_MUD_MMSE fDSCDMA_Pe_ebno_awgn_m_seq_Q15fMATRIX_m_seq_length_15-DS-CDMA
tiaozhi
- 产生一组随机的0、1二进制比特序列，分别用2ASK, 2FSK, 2PSK和2DPSK四种调制方式把它们调制到一个较高的载频上,结果给出前8个比特所对应的时域波形。-0,1 generate a set of random binary bit sequence, respectively 2ASK, 2FSK, 2PSK and 2DPSK four kinds of modulation modulation them to a higher carrier frequency, the r
zi
- 在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调-In this system, the message sequence prior through FSK modulation, through the cut-off frequency of 25kHz after low-pass fi
s-interleaver
- s-交织器，能对序列进行交织，保证交织序列交织分散-s-interleaver, can be interleaved sequence to ensure the cutting sequence spread intertwined
autocorr123.m
- 本程序实现两个任何实值序列的自相关互相关运算-The program realization of two of any real value of autocorrelation in calculating
m
- 主要是针对扩频通信的m序列的产生方法的c++实现-Mainly for m-sequence spread spectrum communication method for forming the c++ Implementation
tongxinfangzhen3
- 滚降系数为0.5的升余弦滚降系统的时域波形，二进制序列经过滚降系统后输出，画出输出端信号的时域波形和眼图。-Roll-off factor of 0.5 Raised Cosine system in time domain waveforms, binary sequence through the roll-off system after the output, draw the time-domain output signal waveform and eye diagram.
gauss_noise
- 在C环境下，实现高斯白噪声序列的产生，使用瑞利分布-get gauss_noise
frequency-hopping-sequence
- 利用m序列生成跳频序列并用于跳频通信，并给出误码率曲线。-M sequence to generate the frequency hopping sequence and used for frequency hopping communication, and gives the BER curves
8psk
- （1） 分析QPSK调制、解调原理，并画出其系统框图； （2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形； （3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形； （4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱； （5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图； （6） 进行8PSK解调，输出解码序列，画出解调后信号波形； （7） 计算系统信噪比、传输误码率。-(1)
communication
- 针对通信侦查课题，通过已知先验知识和截获信号，进行找出同步序列，匹配滤波，校正频偏和相偏，均衡，解交织，译码，恢复出原序列，最终得到的序列与原序列作对比得到误码率为0-Investigation subject for the communication, by known a priori knowledge and intercepted signal conducted to identify the synchronization sequence, the matched filter
m
- 伪随机序列、伪噪声(PN)码或伪随机码。可以预先确定并且可以重复实现的序列称为确定序列；既不能预先确定又不能重复实现的序列称随机序列；不能预先确定但可以重复产生的序列称伪随机序列。-Pseudo-random sequence, a pseudo noise (PN) code, or pseudo-random code. The sequence is called to determine the sequence can be pre-determined and can be repe
Superimposed-training
- 叠加训练序列的最小二乘信道估计与最小均方误差均衡，QPSK调制，做了4次迭代估计的性能对比。-superimposed training, least squares (LS) channel estimation, MMSE equalizer, QPSK modulation, 4 times iteration.
radar-signal-simulation
- matlab仿真。 对m序列和互补码序列的仿真：分别对m序列和四相互补码序列的发射，回波，和脉冲压缩进行了仿真。 同时包含线性调频信号（LFM）和m序列以及简单单脉冲的模糊函数仿真的文件。-The matlab simulation. m sequence and complementary code sequence simulation: four-phanse complementary code and m sequence code s emission, echo, a
bpskmod
- BPSK的扩频和调制的matlab程序，其中扩频码为m序列，包含产生m序列的matlab程序。-BPSK spread spectrum modulation matlab program, the spreading code of m-sequence contains sequence matlab program generates m.
gsm-tiansmit-program
- gsm实验中序列发送程序,发送序列及代码-gsm experimental sequence sending program, send the sequence and code
DSSS-system.rar
- DS-CDMA通信系统，扩频码包括M序列。GOLD，正交GOLD，Gray规则瑞利衰落信道，多用户，统计误码率。,DS-CDMA communication system, the spreading codes including an M sequence. GOLD, orthogonal GOLD, Gray rules Rayleigh fading channel, multi-user, the statistical error rate.