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analog_modulation
说明： 模拟调制识别各特征参数随信噪比变化曲线。信号的瞬时信息包括瞬时幅度、瞬时相位、瞬时频率及其不同角度的统计特征值，其中瞬时幅度、瞬时相位、瞬时频率是一个信号最基本的特征。（AM、DSB、SSB、VSB、FM、AM-FM）(Simulated Modulation Recognition Curve of Variation of Characteristic Parameters with Signal-to-Noise Ratio)
- 2021-04-25 18:38:46下载
- 积分：1
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yulewalker
现代谱估计yulewalker法，现代的谱估计方法，(PSD yulewalker method，)
- 2011-05-30 09:51:50下载
- 积分：1
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EXIT
本源码包参考英国Southampton大学Robert G. Maunder教授2008年的EXIT charts开源demo，给出了通用(分量码多项式可自定义)并行级联Turbo码的EXIT charts的作图源码。同时可完成迭代轨线、BER等值线的绘制等工作。
由于对于码块长较大的情形仿真需要较长时间，源码包也给出了部分分量码多项式的仿真结果，可直接用于绘图。
源码包还给出了最经典的S.Ten Brink介绍EXIT charts基本原理的参考文献，以及本人对通信系统中迭代译码过程分析技术综述的小论文，希望对大家有所帮助。(This source package comes after Professor Robert G. Maunder s open source demo about EXIT charts in 2008 from University Southampton, UK. It is designed for universal (constituent code generation polynomial can be customized) Parallel
Concatenated Turbo Code EXIT charts. The iterative trajectories and BER contour drawing is also completed in this package. Since the long block case costs a lot of simulation time, some simulation results are included in the package. We also give the most classical introduction to the basic principles of EXIT charts from S. Ten Brink, as well as a document about analysis technologies for iterative decoding process in communication systems. Hope this will help.)
- 2009-07-12 12:13:21下载
- 积分：1
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VoIP
这个是华为的VoIP文档，讲述清晰，值得阅读！(This is Huawei' s VoIP documents, about clarity, it is worth reading!)
- 2009-12-06 16:01:08下载
- 积分：1
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相控天线方向图
实现相控阵雷达天线波束的形成，可以清楚地看到随相位变化的波形能量分布。(To achieve the formation of phased array radar antenna beam, we can clearly see the waveform energy distribution with phase change.)
- 2018-06-29 16:16:17下载
- 积分：1
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NVP6134B AHD RX 芯片支持300MP摄像机 NVP6134B_Product_Brief
NVP6134B AHD RX 芯片支持300MP摄像机(The NVP6134B AHD RX chip supports 300MP cameras)
- 2020-12-18 10:39:10下载
- 积分：1
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位同步源代码bitsynchronization
位同步源代码，是关于MATLAB的，很好的，并且具体有调制解调的功能！(Bit synchronization source code on MATLAB, very good, and the specific modulation and demodulation functions)
- 2012-07-23 17:17:13下载
- 积分：1
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Cpp
learning c++. it is good for start and beginners
- 2016-03-27 00:23:30下载
- 积分：1
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NFC1
NFC协议第一部分，描述了NFC tag 1 通讯协议(NFC protocol first part describes the communication protocol NFC tag 1)
- 2016-06-26 11:19:30下载
- 积分：1
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pcsc3_v2.01.09
PCSC APDU specification.
- 2011-11-07 19:53:52下载
- 积分：1
