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4
说明： 4. 试说明卷积编解码的工作原理：
(1) 使用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。
(2) 请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4. Try to explain the working principle of convolutional codec:
(1) Simulink was used to simulate convolutional coding, and Viterbi decoding method was used for decoding. The coding and decoding were all written by oneself (s-function method), rather than calling the existing coding and decoding functions of Simulink.
(2) in the additive white gaussian noise channel, please draw the curve of the relationship between bit signal-to-noise ratio and bit error rate.)
- 2019-01-15 10:53:20下载
- 积分：1
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entitysstoraoe
易语言按钮滑动效果源码,很不错的易语言源码,适合易语言爱好者学习,()
- 2018-05-03 12:31:10下载
- 积分：1
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ChaoticSS
生成常见的混沌映射，用于混沌扩频码的设计。应用三种量化方法，比特量化、门限量化以及模2量化。重点计算其相关性能，自相关以及互相关，得到相关图像。计算序列的游程、平衡度。(To generate common chaos maps and use them to design the chaotic spreading sequences. We applied three kinds of quantization methods with bit queantization, threshold quantization and mod 2 quantization. We emphasized on the calculating the correlation performance on auto-corrrelation and cross-correlation and plotted their images.)
- 2021-03-24 16:39:14下载
- 积分：1
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GM8622-Breakout-Schematic
Datashhet gsm862 infoirmation
- 2010-05-25 19:07:26下载
- 积分：1
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OFDM
一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。(OFDM：
coding modulation IFFT AWGN Mode FFT ……)
- 2012-06-26 21:25:37下载
- 积分：1
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vhdl1008
说明： PCI slave IP core, in VHDL language ,has been verified,it is very easy to use.
it is an ideal IP to study PCI,design PCI Bridge
- 2020-06-18 18:20:01下载
- 积分：1
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EE_SE
Optimal Resource Allocation and EE-SE Trade-Off
in Hybrid Cognitive Gaussian Relay Channels
- 2021-01-13 16:38:48下载
- 积分：1
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Twwh
本论文以OFDM系统为基础，介绍了OFDM系统的基本原理，以及使用OFDM技术的优势所在，并且展望了今后的无线移动技术的发展前景。在简单介绍OFDM原理的同时，着重阐述了OFDM系统在不同信道环境和不不同实现方式下的误码性能。主要包括了OFDM系统在加性白高斯信道，在加性白高斯信道和多径干扰两种不同信道环境下系统的误码性能，其中后者还研究了系统在有保护间隔与无保护间隔的误码性能比较。在理论分析的基础
(This thesis is based on the OFDM system, the basic principle of the OFDM system, as well as the advantages of using OFDM technology, and future prospects for the development of future wireless and mobile technologies. OFDM principle in brief, focusing on the BER performance of OFDM systems under different channel conditions and different implementations. Including OFDM system in additive white Gaussian channel, additive white Gaussian channel and multipath interference of two different channel environment, the system BER performance, the latter of which also studied the system in a protected interval without guard interval BER performance comparison. The basis of theoretical analysis)
- 2021-04-28 13:08:43下载
- 积分：1
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gsoap
利用gsoap开发的C++客户端和服务端例子(Developed using C++ gsoap client and server example)
- 2011-06-02 16:07:23下载
- 积分：1
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MskModem
说明： MSK信号的调制与解调，根据书上的代码进行了修改，非常详细(Modulation and demodulation of MSK signal)
- 2020-05-07 10:46:55下载
- 积分：1
