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ofdm-siso
正交频分复用是一种多载波宽带数字调制技术。相比一般的数字通信系统,
它具有频带利用率高和抗多径干扰能力强等优点,因而适合于高速率的无线通信系统。(
OFDM Simulator
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MIMO OFDM Simulator:
OFDM.m: OFDM Simulator (outer function)
create_channel.m: Generates a Rayleigh fading frequency-selective channel, parametrized by the antenna configuration, the OFDM configuration, and the power-delay profile.
svd_decompose_channel.m: Since full channel knowledge is assumed, transmission is across parallel singular value modes. This function decomposes the channel into these modes.
BitLoad.m: Apply the bit-loading algorithm to achieve the desired bit and energy allocation for the current channel instance.
ComputeSNR.m: Given the subcarrier gains, this simple function generates the SNR values of each channel (each singular value on each tone is a separate channel).
chow_algo.m: Apply Chow s algorithm to generate a particular bit and energy allocation.
EnergyTableInit.m: Given the SNR values, form a table of energy increments for )
- 2009-03-05 20:05:49下载
- 积分:1
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matlabtool
雷达工具箱,matlab实现的,内涵上百工具例程,在雷达仿真时,使用很方便(Radar toolbox, matlab implementation, meaning hundreds of tools for routine
)
- 2011-05-20 16:53:09下载
- 积分:1
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Tut2_-_z_transform
DSP course Tut2_-_z_transform
- 2011-11-07 23:46:54下载
- 积分:1
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ExpandableListViewTest
Test Target Class Source Code for Andriod.
- 2013-11-26 15:11:49下载
- 积分:1
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HHT_power-system_power-quality_disturbances-detect
优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术,该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列,每一个序列称为一个固有模态函数(IMF),然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱,汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理,将信号中真实存在的不同尺度波动或趋势逐级分解出来,最终用瞬时频率和能量来表征原信号的频率含量。
本文研究了基于HHT的暂态电能质量扰动检测方法,介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻,持续时间和扰动幅度,适用于电能质量多扰动的监测和辨识系统。
(Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology,including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis.In this method,arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment,each sequence is called an intrinsic mode function(IMF),and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis,a summary of all Hilbert spectrum assembled to the spectra of the original signal.In essence,this method is a stable processing for non-stationary signal,which decomposed the different fluctuations or trends in the signal in rum,and represented the frequency content of the original signal using the final instantaneous frequency and energy.
This paper study a method to detect power quality disturbances based on the HHT,in which the principle and the realization of the HHT and the realization of power quality disturbance)
- 2021-04-24 10:48:48下载
- 积分:1
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sixelements
通过位移,速度这六个量来求得飞行器轨道的六个基本要素(Through displacement, velocity, volume of these six aircraft to strike the six basic elements of the track)
- 2008-05-26 00:39:47下载
- 积分:1
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UWB_Lecture03_v2
About UWB A co-basis is a special orthonormal basis, of the Hilbert function space, whose base functions are shape-invariant to Fourier transform except for phase shifts known a priori. A notable advantage of the co-basis orthonormal-expansion method lies in that it essentially conceals the difference between time- and frequency-domains expansions, such that expanding the UWB spectra (frequency domain) is almost equivalent to expanding the pulse shapes (time domain), making the designing task significantly simple. This paper highlights this advantages through tutorial examples on the design of UWB pulses with DAA functionality that meets Korea spectrum regulations.(About UWB)
- 2010-01-17 23:48:15下载
- 积分:1
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DC-Home-Task-LZ
LZ compression
LZ decompression
- 2011-11-28 07:36:26下载
- 积分:1
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四机两区
粒子群优化算法计算出的PSS优化模型,为四机两区模型(PSS optimization model calculated by particle swarm optimization algorithm)
- 2020-12-30 00:09:00下载
- 积分:1
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STAP
阵列信号处理中的空时自适应处理算法的MATLAB实现代码(MATLAB Implementation Code of Space-Time Adaptive Processing Algorithms in Array Signal Processing)
- 2021-04-22 14:38:48下载
- 积分:1