搜索资源列表
WirelesscoherentOFDMmodemsimulation
- This project aim was to build wireless software modem for data communication between two computers using an acoustic interface in the voice frequency range (20Hz– 20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz – 2
wlan_transmitter
- WLAN仿真－发送机 wlan No Comments 设置完系统参数后，开始产生发送数据。 1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。 2. QAM映射 3. 将数据映射到不同载波，形成OFDM符号 4. 产生pilot，并将pilot插入OFDM符号中 5. 加入dc和guard子载波 6. 进行ifft，将频域信号变到时域，并加入循环前缀 7. 对信号进行overlap window 8. 在时域产生short preamb
OFDM
- 本文在分析移动无线信道衰落特性的基础上,阐述了OFDM系统的基本原理,主要研究了OFDM通信系统中的基于导频符号的信道估计问题,分析了几种经典的信道估计算法以及相关的关键技术环节。 在此基础上介绍了OFDM技术在现实中的一个应用——WLAN IEEE802.11a系统模型,利用Matlab仿真软件完成OFDM系统信号生成、噪声生成、导频插入、循环前缀、调制、解调等部分的设计,最后结合计算机仿真对系统关键技术(导频、循环前缀、估计算法)的有效性和可行性进行了全面的分析与比较。适合matlab研究-
ofdm
- 导频符号调制方式对OFDM信道估计的影响，自己觉得不错的文献，分享下-Pilot symbols of the OFDM modulation channel estimation of the impact of feel good literature, to share the next
Incomplete
- Add pilot symbols to the input data just before transmission 2. Implement cyclic prefix (CP), use 10 of symbol length. Divide the 64 input data points into 8-bit streams, generate and append the CP based on each symbol 3. Include complex
Cell-search-algorithms
- This article presents downlink initial synchronization and cell identification algorithms for long term evolution (LTE) of third-generation (3G) mobile communication systems, which are based on synchronization channel (SCH) and cell specific pilot
LMMSEDFT
- 半盲估计算法利用很少的导频符号，以LMMSE准则来估计、初始化信道系数，运用的两种算法进行对比，牺牲极小的带宽而尽可能准确的传输有用信息-Half blind algorithm using little pilot.finally symbols, with LMMSE criteria to estimate, initialization, the use of the channel coefficient two algorithm is compared, and sacrifice
编译原理 词法分析
- 编译原理 词法分析 [实验项目] 完成以下正则文法所描述的C和Pascal语言子集单词符号的词法分析程序。 <标识符>→字母︱ <标识符>字母︱ <标识符>数字 <无符号整数>→数字︱ <无符号整数>数字 <单字符分界符> →+ ︱－ ︱* ︱； ︱(︱) <双字符分界符>→<大于>=︱<小于>=︱<小于>>︱<冒号>=︱
STUDY AND ANALYSIS OF TIMING OFFSET ESTIMATION METHODS IN OFDM SYSTEMS
- OFDM is a multi-carrier transmission technique. It converts the frequency selective fading channel into a collection of parallel flat fading sub-channels which simplifies the structure of a receiver. OFDM has been widely used in communication system
HMA_ref_code_zcz
- 本代码可产生ZCZ序列，应用于同步码和导频码，具有很好的自相关性，应用环境matlab-This code can be generated ZCZ sequence applied preamble and pilot symbols, with good autocorrelation, application environment matlab
OFDM_Channel_estimators
- ofdm channel estimation based on pilot symbols
siso-ofdm-pilot-based-channel-estimation
- matlab code for siso-ofdm matlab code using pilot symbols
CFO_Classen
- 在OFDM系统中，利用在两个连续的OFDM符号中导频信号之间的相位差，进行基于导频的频域CFO估计技术。-In OFDM systems, the use of two consecutive OFDM symbols pilot phase difference between the signals, frequency domain based pilot CFO estimation techniques.
90255
- A subspace-based blind method is proposed for estimating the channel responses of a multiuser and multiantenna orthogonal frequency division multiplexing (OFDM) uplink system. It gives estimations to all channel responses subject to a scalar ma
mapCarriers
- Maps symbols to data carriers, guard carriers and pilot carriers for
chapter-3-finfet-fabrication
- symbols, because covering all frequencies, could be effective against the selective frequency fading, but more sensitive for the impact of fast fading channel. Therefore, the block-type pilot is developed under the assumption of slow fading channel.
MIMO1
- 实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM co
upload
- 这些文件将在两用户非正交多址（NOMA）系统中实现用于信号检测的深度学习方法[1]。三个主要脚本分别是生成训练数据、训练神经网络和生成测试结果。该神经网络用于相位衰落的静态标量信道，用于NOMA系统中同时检测2个用户的单个子载波上的传输符号。考虑并测试了两种情况：一种是导频符号数目较少，另一种是循环前缀长度较短。在这两种情况下，深度学习方法都比传统的信道估计方法具有更强的鲁棒性。(These files are to implement the deep learning method for