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cyclic2
- 基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号。-based on the cycle of Matlab achieve spectral estimation algorithm, be right circle with a smooth characteristics of the signal to estimate the parameters, such as DS signal and modulation signal
zhikuochansheng
- 利用MATLAB对直扩信号的产生进行了研究，并利用FFT实现频谱分析-Use MATLAB to generate DS signals have been studied, and the realization of the use of FFT spectrum analysis
zhikuo
- 自已做的直扩系统的simulink仿真，包括信号源的生成，捕获与跟踪，解扩解调全过程-To do their own DS systems simulink simulation, including the signal source of the generation, capture and track the entire process of despreading demodulation
multipath_estimation
- 直扩系统中的多径干扰信号的估计消除技术，通过仿真标量多径对直达信号的鉴相特性的影响-DSSS system multipath interference estimate signal cancellation technology, through the simulation of scalar multi-path of the direct signal phase characteristics. .
chengxu
- 建立了多径直扩信号模型，实现多径环境下直扩信号PN码的捕获-The multipath DS-SS signal model is built, and achieve the PN code acquisition under multipath.
kuopin
- 直序扩频系统，首先基带信号通过脉冲成型，m序列扩频然后进行BPSK调制发送，接收端接收到信号加干扰和噪声，进行解调和解扩恢复原始信号。- The straight foreword wide frequency system, the first baseband signal through the pulse formation, the m sequence wide frequency then carries on BPSK the modulation transmission, t
DSSS
- 该程序主要说明直扩系统抑制正弦干扰方面的有效性。绘出不同幅度的正弦干扰信号及无干扰时的误码率.- This procedure mainly showed that expands the system to suppress the sine disturbance aspect straight the validity. Draws the different scope the sine unwanted signal and does not have when the disturb
Simulinkds-cdmafangzhen
- 本文利用MATLAB的可视化工具箱simulnk建立了直扩通信系统的仿真模型，为扩频信号源自检程序设计提供参考。-In this paper, the visualization MATLAB toolbox simulnk DSSS communication system established a simulation model for the spread spectrum signal self-test program designed to provide information
kuopin
- 直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频-Direct sequence spread spectrum (DS
dsss
- 直扩信号BPSK的仿真，采用异或移位的算法实现PN码达到扩频的目的-BPSK DS signal simulation, using different algorithms, or shift the PN code to achieve the purpose of spreading
trans_sigPnoisePinterference
- 根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用
cyc
- 基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号-Matlab-based spectrum estimation algorithm to achieve the cycle, you can have the characteristics of the signal cyclostationary parameter estimation, such as the DS signal and the periodic modulati
LDPC-coding-simulation
- 信源为数字信号信道信噪比为10dB的直扩通信系统仿真实验--LDPC编码仿真源代码-Source to a digital signal channel 10dB SNR DSSS communication system simulation- LDPC coding simulation source code
DSSS
- 基于MATLAB的直扩信号的产生，扩频，调制解调以及解扩-matlab dsss
twoD_correlation
- 用于求解并绘制两个直扩信号的二维循环相关函数及对应二维图-two dimensional circle correlation of two direct sequence spread spectrum signals
duojing_zhikuo
- 用于多径直扩信号的仿真程序，对于研究直扩信号的人很有帮助。-Simulation program for multi-straight SS signals for the DS signal is helpful.
bpsk1023
- 扩频序列为1023的直扩信号BPSK调制产生信号的代码。data为bpsk调制m序列信号。mesrial是原始的m序列。dm为随机信息码。 -Spreading sequence for the 1023 DS signal BPSK modulation signal generated code. data for the bpsk modulation m-sequence signal. mesrial is the original m-sequence. dm is the ra
zhikuoxinhaoxuanhuanpu
- 直扩信号的循环谱，不懂直扩信号不懂循环谱的可以看一看-Direct Sequence Spread Spectrum signal cycle, do not know do not know DSSS signal cyclic spectrum can take a look
dsss
- 直扩信号扩频码-M序列的产生函数，以及周期长码直扩信号的产生MATLAB程序。-DSSS,M sequence
MATLAB
- 直扩系统实现,主要用于信号抗干扰，扩展频谱(to make the jdsai jsaiohffb sioahfsdn ksa)