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Description: 该matlab程序仿真了功放对通过它的OFDM信号的影响，如增加的杂散等。
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Size: 135667 |
Author: af19839@163.com |
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Description: OFDM比特加载、功率分配与信道估计算法仿真与建模-OFDM bit-loading, power allocation and channel estimation algorithm for simulation and modeling
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Size: 3072 |
Author: 黄三 |
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Description: 研究OFDM同功放关系的一个经典程序，对初学者很有帮助-Research on the relationship between OFDM Power Amplifier with a classic procedure, very helpful for beginners
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Size: 136192 |
Author: 陶华 |
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Description: OFDM高功率放大器.供学习matlab的同学交流学习
-The Matlab code investigates the harmful effects of high power amplifier on ofdm signals. It is imagined that the amplifier destroy the amplitude of the transmitted signal due to saturation and has no effect on the signal phase. The model is acceptable for solid state amplifier to some extend.
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Size: 2048 |
Author: 天天 |
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Description: 使用ICI自我相消的2種方法:分別是標準OFDM通訊系統下沒有使用ICI下，和使用ICI調變在OFDM通訊系統下 及指使用ICI解調變的ICI係數大小比較-The use of ICI self-phase elimination of two kinds of methods: namely the standard OFDM communication system is not used under the ICI, the modulation and the use of ICI in the OFDM communication system, and refers to the use of ICI under the demodulation of the ICI coefficient of more
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Size: 11264 |
Author: 鄭令儀 |
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Description:
OFDM modulation produces higher Peak Average Power Ratio (PAPR) whenever the carriers in OFDM symbol add synchronously in the time domain resulting in higher signal power. This high power saturates the power amplifier placed in the RF section resulting higher bit error rate. To avoid this higher PAPR value the baseband IQ signal has to be pre-processed in the baseband before it is sent to RF
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Size: 545792 |
Author: keshava |
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Description: m-file调查高功率放大器的影响，channelnoise在ofdm信号，当时介绍卡由于一个paprreductionmethod减少hpa效果。-m-file investigation of high-power amplifier, channelnoise in ofdm signal, when introduced to reduce card due to a paprreductionmethod hpa effects.
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Size: 2048 |
Author: 吴俊凡 |
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Description: nonlinear amplifier effect on ofdm
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Size: 2048 |
Author: mutsuz |
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Description: 33个毕业设计——单片机类，包含OFDM通信系统基带数据、电动智能小车、仓库温湿度的监测系统、USB接口设计、全遥控数字音量控制的D 类功率放大器等-33 Graduation- SCM class, including OFDM baseband data communication systems, electric smart car, storage temperature and humidity monitoring system, USB interface design, full volume control remote digital Class D power amplifier
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Size: 8680448 |
Author: |
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Description: 与数字预失真相关的论文，包括数字预失真理论与算法实现，宽带功率放大器非线性_行为模型与数字预失真系统研究，射频数字预失真器设计与实现，多阶调制自适应数字预失真算法的研究与改进，基于FPGA的射频功放数字预失真器设计，数字预失真短波功率放大器线性化研究，宽带通信系统中功率放大器的数字预失真技术研究，数字预失真参数提取技术及硬件实现，数字预失真技术在RoF系统中应用研究，WCDMA直放站系统中数字预失真技术的设计与实现，基于IMT_Advanced收发系统的数字预失真硬件平台设计-And digital predistortion related papers, including digital predistortion theory and algorithm, broadband power amplifier nonlinear _ behavior model and digital predistortion system research, rf digital predistortion device design and implementation, order a adaptive predistortion digital (and improvement, the rf power amplifier based on FPGA digital predistortion device design, digital predistortion short wave power amplifier linear research, broadband communication system of power amplifiers, digital predistortion technology research, digital predistortion parameters extraction technology and hardware realization, digital predistortion technology in RoF system application research, and put in the station system WCDMA straight digital predistortion technology design and implementation, IMT_Advanced transceiver system based on digital predistortion hardware platform design
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Size: 49809408 |
Author: lyy |
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Description: EPM2428 is a new product belonging to RFIC’s EPM
family. It’s a three-stage power amplifier with super
high output power in 2.4-2.5GHz band utilizing
InGaP/GaAs HBT process. With excellent linearity
performance, the device delivers 28dBm output
power and 3 EVM at 4.5V under 54Mbps OFDM
(IEEE802.11g) modulation, and 31dBm output power
meeting 802.11b spectrum mask respectively.
Products in EPM family integrate input matching,
output matching and partial RF choke on chip. It
offers the users good balance in performance and
cost. EPM2428 is housed in a 16 pin 4X4 (mm 2 ) QFN
leadless package.-EPM2428 is a new product belonging to RFIC’s EPM
family. It’s a three-stage power amplifier with super
high output power in 2.4-2.5GHz band utilizing
InGaP/GaAs HBT process. With excellent linearity
performance, the device delivers 28dBm output
power and 3 EVM at 4.5V under 54Mbps OFDM
(IEEE802.11g) modulation, and 31dBm output power
meeting 802.11b spectrum mask respectively.
Products in EPM family integrate input matching,
output matching and partial RF choke on chip. It
offers the users good balance in performance and
cost. EPM2428 is housed in a 16 pin 4X4 (mm 2 ) QFN
leadless package.
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Size: 79872 |
Author: tsairuoyun |
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Description: BER verses SNR in ofdm with amplifier:
The BER performances of OFDM systems over the AWGN channel are given
by the BER where N=512. We see that SNR required for BER=10-3
No channel coding scheme is adopted. Therefore, BER
is a bit higher. The results with 16 QAM show that the required Signal to Noise
Ratio (SNR) for BER=10-2 is almost the same. This is because the noise is the
dominant.
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Size: 2048 |
Author: asmaa |
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Description: 将OFDM技术运用在可见光通信的研究，并且把OFDM的高峰均比这一缺点进行了建设性的运用。-In
particular, the use of OFDM (orthogonal frequency division
multiplexing) for intensity modulation is investigated. The high
peak-to-average ratio (PAR) in OFDM is usually considered
a disadvantage in radio frequency transmission systems due
to non-linearities of the power amplifier. It is demonstrated
theoretically and by means of an experimental system that the
high PAR in OFDM can be exploited constructively in visible light
communication to intensity modulate LEDs. It is shown that the
theoretical and the experimental results match very closely, and
that it is possible to cover a distance of up to one meter using a
single LED.
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Size: 415744 |
Author: 易利 |
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Description: this matlab code presents a ofdm digital predistorter using lut method and a saleh model for the power amplifier-this matlab code presents a ofdm digital predistorter using lut method and a saleh model for the power amplifier
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Size: 6144 |
Author: shi |
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Description: OFDM matlab code.
The mfile investigates the effects of the high power amplifier (HPA) and the channel noise on the ofdm signals.
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Size: 2048 |
Author: Maruthi |
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Description: The mfile investigates the effects of high power amplifier and the channel noise on the ofdm signals.
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Size: 2048 |
Author: lap |
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Description: 由于一般的功率放大器不是线性的，且动态范围是有限的，所以当OFDM系统内这种变化范围大的信号通过非线性部件时，信号会产生非线性失真。-
As the general power amplifier is not linear, and the dynamic range is limited, so that when a large range of variation within an OFDM system, the nonlinear signal components, the signal will produce nonlinear distortion.
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Size: 6658048 |
Author: liufang |
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Description: In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which increases cost of the system. PAPR is ratio of peak power to average power of time domain complex baseband signal which is to be transmitted. We will discuss PAPR reduction techniques below.-In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which increases cost of the system. PAPR is ratio of peak power to average power of time domain complex baseband signal which is to be transmitted. We will discuss PAPR reduction techniques below.
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Size: 591872 |
Author: manyam srikanth |
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Description: 关于预失真系统的一些参考文档：
A Band-Divided Memory Polynomial for Wideband Digital Predistortion With Limited Bandwidth Feedback
A Digital Predistortion System With Extended Correction Bandwidth With Application to LTE-A Nonlinear Power Amplifiers
A 25 dBm Digitally Modulated CMOS Power Amplifier for WCDMA EDGE OFDM With Adaptive Digital Predistortion and Efficient Power Control
2012-On the Robustness of Look-Up Table Digital Predistortion in the Presence of Loop Delay Error
2012-Complex-Chebyshev Functional Link Neural Network Behavioral Model for Broadband Wireless Power Amplifiers-DPD reference paper
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Size: 8524800 |
Author: wangmo |
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Description: 在Matlab代码调查高功率放大器在OFDM信号的有害影响。据设想，该放大器破坏由于饱和的发送信号的振幅，并且对信号的相位没有影响。该模型是固态放大器可以接受的一些扩展。-In high power amplifier in Matlab code survey harmful effects OFDM signal. It is envisaged that this amplifier damage due to the saturation of the amplitude of the transmitted signal, and does not affect the phase of the signal. The model is a solid-state amplifier can accept some extensions of.
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Size: 138240 |
Author: 陈明龙 |
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