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CORBA
关于CORBA的源代码,关于回调的动能描述.(SOURCE CODE OF CORBA)
- 2011-06-27 08:43:20下载
- 积分:1
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GAzhouqi
使用改进的遗传算法来优化一维周期稀疏线阵(Using improved genetic algorithm to optimize one-dimensional periodic sparse linear array)
- 2019-04-06 01:56:45下载
- 积分:1
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QAM_RAY_REP
this is a code that shows QAM consetellation with data repetition (3 time repetition)
the transmitted signal goes through flat fading Rayleigh channel
- 2012-04-05 19:24:27下载
- 积分:1
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第一次作业_基于分类算法的雷达状态识别
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
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mimo信道模型
说明: MIMO系统由于在空间中具有多个发送和接收天线,因此其信道模型也具有其特有的复杂性。尽管具有这种复杂性,对MIMO信道进行建模仍然十分必要。(Because MIMO system has multiple transmit and receive antennas in space, its channel model also has its own complexity. Despite this complexity, it is still necessary to model MIMO channels.)
- 2020-10-26 22:50:00下载
- 积分:1
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BPSK调制仿真
说明: bpsk调制仿真,可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处,形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控(ASK)、频移键控(FSK)、绝对相移键控(PSK)、相对(差分)相移键控(DPSK)。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而,实际中的大多数信道(如)无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输,必须用数字基带信号对载波进行调制,以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分:1
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spectral-communication
扩频通信完整的课件和习题答案,清华经典教材,学习无线移动以及跳频通信的基础(Spread spectrum communication courseware and exercises complete answer, Tsinghua classic textbook, learning, and frequency hopping wireless mobile communication base)
- 2011-11-18 09:39:47下载
- 积分:1
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UnderthePCintheWindows95andsingle-chipserialcommun
在Windows95下PC机和单片机的串行通信。
基于32位操作系统Windows95的工业控制PC机和单片机间的串行通信,给出了用VC++5.0和PL/M-96语言编写的串行通信程序(Under the PC in the Windows95 and single-chip serial communication. 32-bit operating system based on the Windows95 machine and industrial control PC serial communication between the single-chip, is given by VC++5.0 and PL/M-96 language serial communication program)
- 2009-05-31 15:11:53下载
- 积分:1
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8PSK for ML
这是一个基于OPtisystem下的对于8PSK信号的仿真,可用于通信工程作业的一般仿真系统。(This is a simulation system of 8PSK signal based on OPtisystem, which can be used in general simulation system of communication engineering operation)
- 2019-04-17 16:17:28下载
- 积分:1
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B11Test
一种Ipod Shuffle Cable检测程序(One kind of Ipod Shuffle Cable testing procedures)
- 2011-10-28 08:46:13下载
- 积分:1