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pem
应用虚拟激励法和振型分解反应谱法分析不同的结构，很有用(Application of pseudo excitation method and mode decomposition response spectrum method)
- 2018-04-25 15:51:58下载
- 积分：1
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sphere3d
3d球坐标 球坐标绘图
直角转极坐标 画三维图( SPHERE3D(Zin,theta_min,theta_max,phi_min,phi_max,Rho,meshscale)
plots the 3D profile Zin as a mesh plot on a spherical surface
of radius Rho, between horizontal sweep angles theta_min and
theta_max and vertical phi_min and phi_max, with mesh size
determined by meshscale.
)
- 2009-07-16 09:54:34下载
- 积分：1
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LTE
一本介绍第四代移动通信LTE的英文书籍，详细介绍了从发送端到信道到接收端的原理及实现。(One introduces fourth-generation LTE mobile communication in English books, details from the sender to the receiver channel to the principles and implementation.)
- 2011-06-22 21:22:23下载
- 积分：1
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CMAequalization
QAM高阶调制 恒模盲均衡算法
CMA Equalization Algorithm(QAM CMA Equalization Algorithm)
- 2013-08-31 19:09:29下载
- 积分：1
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Homwork_1
说明： 1. signal function generate
2. recursion signal generate
- 2019-01-10 17:23:37下载
- 积分：1
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格基规约程序
LLL格基规约的matlab算法程序，能够实现向量的格基规约(matlab code for LLL lattice reduction)
- 2021-03-21 15:39:18下载
- 积分：1
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MIMO channel
实现信道信息反馈，基于信道统计的大规模MIMO信道反馈码本性能研究(Realizing Channel Information Feedback)
- 2019-03-04 16:37:40下载
- 积分：1
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Q_DSSS
直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。(DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user information data has been multiplied by the direct spread spectrum data information signal, and then after a BPSK modulated sent through AWGN channel after transmission, at the receiving end with the locally generated address code associated Detect, which will address code with local codes consistent user data elected to delete user data inconsistencies.)
- 2009-03-02 14:01:22下载
- 积分：1
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空腔顶盖驱动流,二维九速度模型 Lid_Driven_Cavity
空腔顶盖驱动流,二维九速度模型，LBM方法。(The lid driven flow in cavity, written in matlab language(D2Q9, LBM solver).)
- 2020-06-27 00:40:01下载
- 积分：1
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一种数字中频 GPS 信号生成方法 GPS generation
研究了一种数字中频 GPS 信号生成方法。给出了数字中频信号数学模型，模型考虑了各种因素对信号的影响。通过导航电文分析，提出信号传播时延、多普勒频移以及信号入射方向的估计方法。给出了中频信号产生的流程，对其中时延的设置，信号的上变频、信号幅度设置以及方向信息的导入进行了阐述。对所生成的信号模型进行了仿真分析，给出了信号产生各个阶段的频谱，对所生成的信号进行了相关捕获。仿真结果表明频谱特征符合理论分析，能够被捕获并找出信号时延从而实现定位。证明该信号模型能作为信号源应用于 GPS接收机研制中。(】The paper discusses a digital IF GPS signal generation method, gives the mathematic
model of digital IF signal. This mathematic model takes into account the influence of various
factors. Based on analysis of the navigation data, the method to estimate signal propagation time,
Doppler frequency shift and the coming angle of signal is proposed. The flow to generate IF signal
is given, in which the setting of time delay, the up-frequency conversion, the setting of signal
magnitude and the introduction of direction information are expounded. The signal generation model
is simulated and analyzed, the spectrum of signal in each stage given, and the correlation capture
of the generated signal also done. Simulation indicates that the spectrum is in accord with
theoretical analysis the signal could be captured, thus find the time delay, accomplish the
orientation. The signal model is proved applicable in the research and development of GPS receiver.)
- 2013-05-15 11:44:16下载
- 积分：1
