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fwdmalawmc
Abstract—In this paper, we study the joint estimation of inphase
and quadrature-phase (I/Q) imbalance, carrier frequency
offset (CFO), and channel response for multiple-input multipleoutput
(MIMO) orthogonal frequency division multiplexing
(OFDM) systems using training sequences. A new concept called
channel residual energy (CRE) is introduced. We show that by
minimizing the CRE, we can jointly estimate the I/Q imbalance
and CFO without knowing the channel response. The proposed
method needs only one OFDM block for training and the training
symbols can be arbitrary. Moreover when the training block
consists of two repeated sequences, a low complexity two-step
approach is proposed to solve the joint estimation problem.
Simulation results show that the mean-squared error (MSE) of
the proposed method is close to the Cramer-Rao bound (CRB).
Index Terms—MIMO OFDM, CFO, I/Q imbalance, channel
estimation.
- 2012-03-29 16:33:58下载
- 积分：1
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SRFT
说明： 简化实频技术，用于微波器件的宽带匹配的Matlab程序。(Simplified Real Frequency Technology)
- 2020-02-09 00:32:24下载
- 积分：1
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SRC
说明： 最大限度地平 FIR 逼近 （拉格朗日插值法）
拉格朗日插值是一种时域方法，导致基于多项式的筛选器的一个特殊情况。用 M 次多项式近似表示输出信号。最简单的情况 (M = 1) 对应于线性插值。让我们设计和分析将通过各种馏分拆分单元延迟的几种线性分数时滞滤波器：(Maximally-Flat FIR Approximation (Lagrange Interpolation)
Lagrange interpolation is a time-domain approach that leads to a special case of polynomial-based filters. The output signal is approximated with a polynomial of degree M. The simplest case (M=1) corresponds to linear interpolation. Let's design and analyze several linear fractional delay filters that will split the unit delay by various fractions:)
- 2017-08-20 11:31:08下载
- 积分：1
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CS-Channel Estimation
说明： 压缩感知信道估计OMP算法，有仿真图比较，注释详细(Compressed Sensing Channel Estimation OMP Algorithms, Comparisons with Simulation Charts, Detailed Notes)
- 2021-03-27 13:19:12下载
- 积分：1
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4FSK-demodulation-and-modulation
4FSK调制解调的matlab代码。采用相干解调的方式4FSK进行解调，与大多数方案的包络检波不同。基带信号用四种电平来表示，与调制信号相区分。(Demodulation matlab code 4FSK modulation. Coherent demodulation 4FSK demodulates Unlike most programs envelope detector,. The baseband signal is represented with four level distinguish phase with the modulation signal.)
- 2020-11-19 10:09:37下载
- 积分：1
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zf_4qam_22
Performace analysis of Zero Forcing detection in (2,2) MIMO system using 4 QAM modulation in Rayleigh Flat Fading Channel
- 2013-07-18 04:26:49下载
- 积分：1
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xws-security-3.0
xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)
- 2014-04-23 16:57:39下载
- 积分：1
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testUSB
用VC++6.0编写的USB通讯测试的程序，可以实现查找PC的USB外设，读取USB外设的设备描述符等功能。对USB通讯初学者有很大的帮助。(Written in VC++6.0 using USB communications test procedure, can be achieved to find PC' s USB peripherals, read the USB peripheral device descriptor functions. USB communication to the very helpful for beginners. )
- 2010-01-28 05:22:12下载
- 积分：1
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CDMA-power-control-algorith
该文为CDMA移动通信功率控制算法的研究与仿真的本科毕业论文(In this paper, the CDMA mobile communication power control algorithm and simulation of undergraduate thesis)
- 2012-05-26 02:15:20下载
- 积分：1
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STM32F4xx_DSP_StdPeriph_Lib_V1.8.0
说明： stm32f4xx 官方标准外设固件库 ，含有多种类型的设计案例(Stm32f4xx official standard peripheral firmware library, containing a variety of design cases)
- 2019-02-22 18:46:45下载
- 积分：1
