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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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Improvement in Cognitive Radio
Improvement in Cognitive Radio
- 2018-03-07 21:42:19下载
- 积分：1
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10285713
说明： 对语音编码技术的特点进行了分析与研究, 对波形编码,声码器和混合编码三种主要 的语音编码进行了比较, 并介绍了GSM 和CD(This paper analyzes and studies the characteristics of speech coding technology, compares the three main speech codes: waveform coding, vocoder and hybrid coding, and introduces GSM and CD.)
- 2019-03-27 23:52:25下载
- 积分：1
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jiaozhima
主要关于交织码编码译码源程序及运行结果。(Is mainly concerned with the intertwined source coding and decoding the results.)
- 2009-06-10 15:37:26下载
- 积分：1
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ITRI CIM Emulator
ITRI CIM Emulator能够读取SML档案，主要功能是用来测试半导体设备的通讯功能，它支持SECS-I/SECS-II/HSMS-SS通讯协议，支持SML格式，具有强大易用的自动化测试功能，免安装即拷即用。 使用前需要先将RS232连接线接好运行软件，选择检视。在设定SECS-I对话窗口中输入相关的通讯参数。(ITRI CIM Emulator can read SML files. Its main function is to test the communication function of semiconductor devices. ITRI CIM Emulator supports SECS-I/SECS-II/HSMS-SS communication protocol, supports SML format, has powerful and easy-to-use automated testing function, and exempts installation and copy-and-play. Before you use it, you need to connect the RS232 connection line to the running software and select the view. Input the relevant communication parameters in the SECS-I dialog window.)
- 2018-10-10 21:54:15下载
- 积分：1
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STH20
读取SHT20的数据发送到主控STM32F103vet6(Read data from SHT20 and send it to master STM32F103vet6)
- 2020-06-17 11:20:02下载
- 积分：1
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QAMreceiver
16QAM信号最佳接收机，包括信号生成（+成型滤波）、上载波、过信道、下变频、匹配滤波、定时同步等过程(the optimal receiver for 16QAM, including signal source( shaped filter),modulation,AWGN channel, matched filter, timing sychnoization and so on)
- 2021-01-07 10:08:52下载
- 积分：1
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103Test
串口或者以太网口的103规约的端口测试和规约解析软件，解压即可用。(iec103 TEST)
- 2012-07-13 13:05:01下载
- 积分：1
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setantics
亦思验证码C++调用封装库,支持网络图片,本地图片,内存图片的识别,在官方的dll实例中只有VB,delp,易语言的例子,()
- 2018-05-01 08:16:57下载
- 积分：1
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schx7_16
ofdm系统的simulink仿真 绝对可用(the ofdm system of simulink simulation is absolutely available)
- 2013-02-26 21:42:53下载
- 积分：1
