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Gold_code_generation
- This m-file generate Gold Sequences of length 31 by taking the modulo-2 sum of two m-sequence generators.
ACF_of_PN_Sequence
- This m-file finds the periodic ACF of all the m-sequences of length 31.In this program m-sequences of length 31 are generated and its periodic Autocorrelation function is plotted-This m-file finds the periodic ACF of all the m-sequences of length 31.
ds_cdma
- DS-CDMA实现基本过程： <TRANSMITTING END>待传信息--NRZ变换（变成NRZ码）---调制（乘以sqrt(2*eb)*cos(2*w*t)）----扩频（乘以m序列或其他伪随机码） ----信道中传输（有加性噪声）<DURING THE CHANNEL> ---解扩（乘以相同的m序列或其他伪随机码）---解调（乘以sqrt(2*eb)*cos(2*w*t)）----比特判别（sum(i)>0-->1 sum(i)<0-
underwater-communication
- Carrierless modulation using bandlimited pseudo-noise signals and code hopping 这是一个水下信号传输的模拟，用于snr很低的情况（-30db），利用m-sequences去code信号。可用于军用环境（不易被探测）和水下信道很恶劣的环境（snr很低）-Carrierless modulation using bandlimited pseudo-noise signals and code hopping
m_sequence
- 本设计是用来产生m序列的。既有关于m序列的原理性概述，又有自己编的产生m序列的函数。已通过仿真。注释详尽。-This design is used to generate m-sequences. Both the overview of the principle of m-sequences, have made themselves a function of m sequence generation. Simulation has passed. Detailed notes.
PAIRED-M-SEQUENCES
- generation of gold code using two maximal length (m seq) sequences. first we need to generate two maximal length sequences and then we have to xor those , we get gold code
MseqGen
- M序列生成的matlab程序，m序列是目前CDMA系统中采用的最基本的PN序列。 是最长线性反馈移位寄存器序列的简称-M sequence generation matlab program, m sequence is the most basic PN sequence CDMA systems currently used. Is the longest linear feedback shift register sequences referred to as
chapter10
- 扩频序列仿真的一系列代码，包括m序列生成，直扩系统主程序等-Spreading sequences of a series of simulation code, including m sequence generation, the main program and other DS system