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CDMA技术说明及仿真

于 2018-12-14 发布文件大小:626KB

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CDMA技术原理与发展，以及MATLAB仿真源代码(Principle and Development of CDMA Technology and MATLAB Simulation Source Code)

文件列表：

CDMA技术说明及仿真\CDMA技术.doc, 2974208 , 2015-10-19
CDMA技术说明及仿真\cnv_enc.c, 1677 , 2002-10-28
CDMA技术说明及仿真\cnv_enc.dll, 34816 , 2002-10-28
CDMA技术说明及仿真\Downlink_Rake.dat, 470 , 2015-10-21
CDMA技术说明及仿真\Downlink_Rake.m, 9539 , 2015-10-21
CDMA技术说明及仿真\MultiPathTV.m, 2496 , 2004-09-19
CDMA技术说明及仿真\PnGen.m, 1966 , 2002-10-28
CDMA技术说明及仿真\viterbi.c, 3189 , 2002-10-28
CDMA技术说明及仿真\viterbi.dll, 35840 , 2002-10-28
CDMA技术说明及仿真, 0 , 2016-11-01

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OFDM
说明： OFDM通信系统的仿真代码，可用作数字通信的分析参考(The simulation code of OFDM communication system can be used as analysis reference of digital communication.)

2020-06-16 04:20:01下载

积分：1
R_95302909IEC103-NR
iec103 规约上位机源代码，喜欢的就下吧。(iec103 Statute of the host computer source code, like on the next bar.)

2021-04-22 10:58:49下载

积分：1
Low-Complexity-PAPR-Reduction-Technique-for-STBC-
Selective mapping algorithm is proposed to reduce the peak-to-average power ration (PAPR) in MIMO-OFDM system. It is proved that the conjugate symbols on two antennas have the same PAPR property with orthogonal space-time block coded (STBC). By using the characteristic, the computational complexity cost and the side information (SI) is significantly reduced compared with the concurrent SLM algorithm. Simulation results demonstrate that the performance of the proposed algorithm outperforms the conventional concurrent SLM algorithm.

2014-01-01 06:04:45下载

积分：1
8psk
（1）分析QPSK调制、解调原理，并画出其系统框图；（2）产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形；（3）进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形；（4）产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱；（5）将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图；（6）进行8PSK解调，输出解码序列，画出解调后信号波形；（7）计算系统信噪比、传输误码率。((1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.)

2012-06-24 13:16:59下载

积分：1
workspace
并联机构工作空间的求解，主要针对6sps结构。(parallel manipulator workspace .)

2021-03-20 12:19:18下载

积分：1
mimo-with-sumrate-analysis
MIMO systems with efficient sum rate analysis

2013-08-27 17:26:54下载

积分：1
第一次作业_基于分类算法的雷达状态识别
说明：第一次作业_基于分类算法的雷达状态识别对于本数据集中的雷达状态识别，数据降维前使用朴素贝叶斯、支持向量机、神经网络的分类算法对于识别的准确率无太大影响；数据降维后使用神经网络算法最优，支持向量机算法其次，朴素贝叶斯算法较差。此外，训练样本越多，分类准确率有小幅度提高。(First Operation Radar State Recognition Based on Classification Algorithms For radar state recognition in this data set, the classification algorithm of Naive Bayesian, Support Vector Machine and Neural Network before data dimension reduction has little effect on the accuracy of recognition; Neural Network algorithm is the best after data dimension reduction, Support Vector Machine algorithm is the second, Naive Bayesian algorithm is the worst. In addition, the more training samples, the smaller the classification accuracy.)

2019-04-03 08:54:04下载

积分：1
h1
说明：通过单元方向图计算并仿真天线阵列的辐射性能，能够模拟相控阵天线扫描方向图。(The scanning pattern of phased array antenna can be simulated by calculating and simulating the radiation performance of the antenna array.)

2019-11-10 20:36:19下载

积分：1
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
Convergence-Behavior-of-Distance-Vector-and-Link
convergence behaviour of distance vector and link state routing protocols

2011-12-06 10:01:05下载

积分：1

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CDMA技术说明及仿真

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