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aedmd
欢迎大家下载学习，真的是一个好程序，小波包分析提取振动信号中的特征频率。( Welcome to download the study, Really is a good program, Wavelet packet analysis to extract vibration signal characteristic frequency.)
- 2017-04-24 09:30:30下载
- 积分：1
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ofdm_psd_spectrum
OFDM信号功率谱和频谱的MATLAB实现(Realization of Power Spectrum and Spectrum of OFDM Signal by MATLAB)
- 2021-04-19 19:38:50下载
- 积分：1
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射线信道模型
这是射线信道模型的代码。里面有多个m文件(This is the code for the ray channel model. There are multiple M files in it.)
- 2020-06-17 12:00:01下载
- 积分：1
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Genetic-Algorithm-in-OFDM-system
OFDM自适应资源分配时，我们知道遗传算法很常见，这里我们给大家编了一下遗传算法的代码，供大家参考(OFDM adaptive resource allocation, we know the genetic algorithm is very common here, we compiled a genetic algorithm code for your reference)
- 2012-03-06 09:55:52下载
- 积分：1
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BD_SVD_LIANGTIANXIAN_blast
基于BD-SVD分解的下行CoMP预编码算法仿真(Based on the BD-SVD decomposition of the downlink the CoMP pre-coding algorithm simulation)
- 2021-05-13 17:30:02下载
- 积分：1
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北斗导航接收机抗干扰算法研究_陈亚男
说明： 基于子空间投影的 CSMG 波束形成算法，是一种将子空间投影与波束形成技术相
结合的抗干扰方法。该方法首先构造干扰子空间的正交补空间，再将天线阵列接收到的空时信号矢量向其投影，然后对投影后的输出信号采用具有严格约束最小功率的抽样矩阵梯度（CSMG）算法，在固定方向上进行波束形成，最后捕获、定位及解算出每个波束得到的无干扰数据等，可以有效地抑制干扰信号，同时又可以更好的保留期望信号。(The algorithm of the CSMG beamforming based on subspace projection, which is a combination of the Subspace projection and beam forming technology. Firstly, the data vector received by antenna array is projected onto the interference subspace, which is orthogonal to interference subspace for achieving interference suppression. And then, by using the method of the strictly constrained minimum power sampling matrix gradient(CSMG), after the projection of the subspace, the signal is beamformed in a fixed direction. Finally, for jammer-free data of each beam achieved to capture, locate, solute and so on. The ability of the suppress interference by this method, which can be more effectively, and keep the desired signal better.)
- 2019-06-16 20:57:33下载
- 积分：1
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10_4
说明： 通信天线建模与MATLAB仿真分析书中10-4题目代码(Lossy Extractio Communication Antenna Modeling and MATLAB Simulation Analysis Book 10-4 Topic Code)
- 2020-06-17 19:00:01下载
- 积分：1
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ZFBF-MMSE
说明： 仿真了MIMO通信系统的两种经典检测算法，迫零和最小均方误差，计算了误码率并绘制了误码率曲线(Two classical detection algorithms, zero forcing and minimum mean square error, are simulated in MIMO communication system. The BER is calculated and the BER curve is drawn)
- 2021-03-14 18:52:14下载
- 积分：1
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s_aloha
在OPNET上搭建场景，仿真接入算法，使用的是S-ALOHA接入算法，以仿真吞吐量、时延等性能(Build a scene on OPNET, simulation access algorithm, using the S-ALOHA access algorithm to simulate the throughput, latency and other performance)
- 2020-10-23 11:07:23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
