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Description: OFDM信号及其频谱
OFDM signal and its spectrum ( Guard Interval insertion )-OFDM signal and spectrum OFDM signal and its spectrum (Guard Interval insertion)
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Size: 1430 |
Author: 李继泉 |
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Description: This about OFDM signal and its spectrum ( Guard Interval insertion )-OFDM signal and its spectrum ( Guard Interval insertion)
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Size: 3924 |
Author: xiaoshuijun |
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Description:
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Size: 1024 |
Author: 李继泉 |
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Description: This about OFDM signal and its spectrum ( Guard Interval insertion )-OFDM signal and its spectrum ( Guard Interval insertion)
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Size: 4096 |
Author: xiaoshuijun |
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Description: OFDM信号及其频谱的matlab仿真源代码，输入信号为随机产生的二进制序列并插入了保护间隔-OFDM signal and its spectrum simulation matlab source code, the input signal for randomly generated binary sequence and insert a guard interval
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Size: 4096 |
Author: 优优 |
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Description: This program generates OFDM (Orthogonal Frequency Division Multiplexing) signal and its spectrum. Also the guard interval (GI) is inserted. -This program generates OFDM (Orthogonal Frequency Division Multiplexing) signal and its spectrum. Also the guard interval (GI) is inserted.
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Size: 1024 |
Author: Allan KAO |
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Description: OFDM接收端程序仿真，包括循环前缀、保护间隔、导频。-OFDM receiver process simulation, including the cyclic prefix, guard interval, pilot.
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Size: 1024 |
Author: ZYM |
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Description: OFDM符号的类型判断与1_2保护间隔预校正-OFDM symbols to determine the type of 1_2 guard interval with pre-correction
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Size: 49152 |
Author: 萧球水 |
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Description: guard interval wireless communication in matlab simulations
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Size: 50176 |
Author: angga |
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Description: This program generates OFDM (Orthogonal Frequency Division Multiplexing) signal and its spectrum. Also the guard interval (GI) is inserted.
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Size: 1024 |
Author: Rafal |
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Description: 本论文以OFDM系统为基础，介绍了OFDM系统的基本原理，以及使用OFDM技术的优势所在，并且展望了今后的无线移动技术的发展前景。在简单介绍OFDM原理的同时，着重阐述了OFDM系统在不同信道环境和不同实现方式下的误码性能。主要包括了OFDM系统在加性白高斯信道，在加性白高斯信道和多径干扰两种不同信道环境下系统的误码性能，其中后者还研究了系统在有保护间隔与无保护间隔的误码性能比较。在理论分析的基础上，用MATLAB进行仿真，最后做出误码性能的分析和比较。 -This paper has OFDM systems based on OFDM systems introduces the basic principles and the use of the advantages of OFDM technology, and to look towards the future of wireless mobile technology development prospects. In a brief OFDM principles, while focusing on the OFDM system under different channel environments and different modes to achieve the error performance. Mainly include the OFDM system in additive white Gaussian channel, in the additive white Gaussian channel and multi-path interference of two different channel environment, the system BER performance, the latter of which also studied the system in a guard interval and non-protected BER performance comparison interval. The theoretical basis of the analysis, using MATLAB simulation, finally make a bit error performance analysis and comparison.
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Size: 1953792 |
Author: 王斌 |
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Description: OFDM系统无保护间隔的系统发送部分、系统接受部分的实现方式-OFDM systems without guard interval of the system to send part of the system to accept part of the way to achieve
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Size: 3072 |
Author: zxy |
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Description: OFDM 系統加AWGN的性能模擬,訊號的Mapper使用QPSK,Guard interval 取資料的符元是1/4，輸出信號與原始信號比較出錯誤率。-Plus AWGN performance of OFDM system simulation, signal Mapper use of QPSK, Guard interval operators access to information, the yuan is 1/4, the output signal and compare the original signal error rate.
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Size: 1024 |
Author: Jason |
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Description: 本人的主要任务是利用MATLAB作为仿真工具来实现OFDM在无线信道上的系统仿真，其中主要的仿真模块包括信源产生，波形预处理，调制，插入导频信号和保护间隔，无线信道，接收滤波器，信道估计和信号补偿，解调，计算误比特率模块。-My main task is to use MATLAB as a simulation tool to achieve the wireless channel on the OFDM system simulation, in which the main simulation modules, including source generation, waveform pre-processing, modulation, inserting pilot signals and guard interval, radio channel, receive filtering device, channel estimation and signal compensation, demodulation, bit error rate calculation module.
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Size: 32768 |
Author: 雷月 |
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Description: MIMO_OFDM系统的matlab仿真程序以及GUI界面的实现，程序中发射端包括卷积编码，打孔，交织，调制，IFFT变换，加保护间隔以及导频序列，接收端包括信道估计等一系列接收操作-MIMO_OFDM system and GUI interface matlab simulation program implementation, program the transmitter including the convolution coding, punching, interleaving, modulation, IFFT transform, guard interval and pilot sequence, the receiver includes channel estimation and a series of receive operation
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Size: 32768 |
Author: 李霞 |
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Description: 一个OFDM符号128个有效符号，插入128个虚拟子载波
符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol
输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号
OFDM symbol Nfft=128 points
一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64
- a OFDM symbol 128 effective symbols, insert 128 virtual sub-carrier
symbol rate (i.e. valid data rate), and fsymbol sending rate (need to include virtual sub-carrier) 2fsymbol
input data need 2 times the sending data rate for interpolation, realize a timing tracking, namely fsymbol sampling rates four times the modulation signal
OFDM symbol Nfft = 128 points
a OFDM symbol of data points Nfft* 2 = 256, Guard Interval point = Ng* 2 = 64
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Size: 40960 |
Author: fine |
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Description: OFDM的原理在matalb中实现源代码，包括FFT和IFFT,加入保护间隔，循环前缀和子载波等。-Principle of OFDM is implemented in matalb source code, including FFT and IFFT, adding guard interval, cyclic prefix and sub-carrier, etc.
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Size: 3072 |
Author: johnnyluo |
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Description: Its a research paper from ieee In this letter, analytical expressions are derived for
the power spectral density (PSD) of orthogonal frequency division
multiplex (OFDM) signals employing a cyclic prefix (CP-OFDM)
or zero padding (ZP-OFDM) time guard interval. Under the relatively
weak assumptions that i) the data are independent and identically
distributed on all OFDM subcarriers and ii) the OFDM
pulse shape is sufficiently localized in time, simple closed-form PSD
expressions can be obtained. These expressions are then compared
to existing OFDM PSD expressions and validated by inspecting the
power spectra of some standardized OFDM signals.
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Size: 267264 |
Author: payal |
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Description: Optimization of Guard Interval for OFDM Performance over Fading and AWGN Channels Using Genetic Algorithm
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Size: 180224 |
Author: sayeed |
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Description: OFDM系统仿真，采用QPSK调制解调，含保护间隔。-OFDM system simulation, QPSK modulation and demodulation, including the guard interval....
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Size: 1024 |
Author: hyx |
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