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LDPC码
信息通过LDPC编解码误码率与未编码信息误码率比较(Comparison of BER between uncoded information and LDPC code)
- 2018-07-01 19:41:21下载
- 积分：1
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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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BackProjectionbyrao
说明： SAR雷达的BP后向投影成像，可运行出结果(The BP back projection imaging of SAR radar can run the result)
- 2019-12-13 22:07:57下载
- 积分：1
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sample2
its a matlab code for the orthoganal
- 2013-10-20 14:56:50下载
- 积分：1
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serial to parallel
直接序列扩频通信中采用QPSK调制时，须将产生的串行数据首先串并变换成两路，本程序就是实现这种串并变换！(Direct sequence spread spectrum communications using QPSK modulation, it is necessary to have a string of serial data and converted into the first two, the process is to realize such a string, and transform!)
- 2009-07-01 11:48:14下载
- 积分：1
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AMC
无线通信类的，适用于自适应调制算法，用户算法(AMC algorithm)
- 2012-05-04 11:40:39下载
- 积分：1
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regress-137
base is now HeapNumber with valid Smi value.
- 2014-02-09 12:23:46下载
- 积分：1
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Print_out_Even_Numbers
Print out Even Numbers
- 2013-03-16 00:17:56下载
- 积分：1
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MSCMI
MIMO的MATLAB的无线通信仿真模型：3GPPP推荐模型SCM ，经测试可直接使用。
(Of MIMO wireless communication of MATLAB simulation model: 3GPPP recommended model for SCM, has been tested and can be used directly.)
- 2012-07-17 13:16:16下载
- 积分：1
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convolution
卷积码和turbo的结合。。。。。。。。。。。。。。。。。。。。。。。。。。。。。(The combination of convolutional codes and turbo)
- 2012-08-30 15:33:25下载
- 积分：1
