搜索资源列表
Digtalbasis
- 理解通信系统特别是无线通信系统对基带信号的处理方法及目的,包括基带系统的差错控制,扩频跳频原理,保密通信等基本原理和实现方法。 -Understanding of communication systems, especially wireless communications system to the base-band signal processing methods and purposes, including base
dsssC
- 一个简单的C语言实现的直序扩频通信系统的程序,可学习C语言-A simple C language realization DSSS communication system procedures, be able to learn C language
xiugaideq
- 在一个通信系统中对信源的扩频,信道的指定概率加错并在接收端解扩,计算其误码率-In a communication system in the source of the spread spectrum, channel designated fault probability increases and despreading in the receiver to calculate the BER
work
- Matlab 模拟 CDMA 直接扩频。m序列生成矩阵为p(x) = 1 + x^5 + x^7 + x^8 + x^9 + x^13 + x^15。能画出每阶段的时域、频域图。-Matlab simulation of CDMA Direct Spread Spectrum. m sequence generated matrix for p (x) = 1+ x ^ 5+ x ^ 7+ x ^ 8+ x ^ 9+ x ^ 13+ x
kuopinxinhaojiance
- 利用MATLAB对扩频信号进行检测和参数估计,结果表明本方法具有在低信躁比下检测的优势-The use of MATLAB for spread spectrum signal detection and parameter estimation results show that this method is in the low than under the letter impatient edge detection
ds
- 直序扩频系统的matlab仿真,可以让读者清楚的了解扩频通信的概念以及波形效果-DSSS matlab simulation system that allows readers a clearer understanding of the concept of spread spectrum communication, as well as the effect of waveform
2008_5
- 在三条径的瑞利信道中,对于直接序列扩频: (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,
dsss
- 简单实用的扩频系统MATLAB源程序,包括直接序列,调频和CDMA-Spread-spectrum systems simple and practical MATLAB source, including direct sequence, frequency modulation and CDMA
VHDL_DMF
- Vhdl实现扩频通信匹配滤波器,书上打下来的,打了好久.-VHDL realization of spread spectrum communication matched filter, books, playing down, playing for a long time.
fhss
- 扩频通信系统程序,采用2FSK调制,得到了较好的效果-Spread Spectrum Communication System procedures 2FSK modulation, obtained good results
dsss_code
- dsss直接扩频通信源代码.便于学习.内含4个m文件-DSSS direct spread spectrum communication source code. easy to study. containing 4 m file
dsss
- 直接序列扩频通信系统在AWGN信道下的误码率性能分析-Direct sequence spread spectrum communication system in the AWGN channel BER performance analysis
Q_DSSS
- 直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码,与多用户信息数据相乘得到信息数据的直接扩频信号,再经过BPSK调制后发送出去,经过AWGN无线信道的传输后,在接收端与本地产生的地址码进行相关检测,从中将地址码与本地码一致的用户数据选出,把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as ad
DSSS
- 利用MATLAB实现多用户的扩频通信的发送和接受,程序可以直接跑,不需要改动!-The use of MATLAB implementation of multi-user spread spectrum communication send and receive, the program can be directly run, no changes!
DSSS
- 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
cdma2000_simulink
- cdma2000的系统建模及实现 包括信源编码,信道编码,扩频,调制。-cdma2000 System Modeling and implementation
matlab_ydtx
- 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信道。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 Sequence Spread S
convolutionalcoding
- 基于DSP中的54系列用于扩频通信中,实现卷积编码和为随机序列的生成。-DSP-based 54 Series for spread spectrum communication, convolutional coding and implementation for the generation of random sequence.
YYY_DSSS
- 设计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信道。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。-Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequen
Carrier_Trace
- 包括载波跟踪和伪码相位跟踪,用Matlab实现直接序列扩频信号的跟踪程序。-Including pseudo-code tracking and carrier phase tracking using Matlab implementation of direct sequence spread spectrum signal tracking procedures.