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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.)
- 2021-01-23 11:48:39下载
- 积分：1
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OFDM
BPSK在OFDM系统不同信道下的误码率比较(This is a Script for computing the BER for BPSK in OFDM modulation in the AWGN channel.)
- 2020-07-12 23:48:54下载
- 积分：1
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ptsv
不同的相邻分组数目v实现的pts抑制ofdm峰均比的算法，可以仿真出v越大，papr的性能越好(Different number of adjacent sub-v realize the pts OFDM PAPR suppression algorithms, simulation of v can be greater, papr better performance)
- 2008-05-19 17:01:25下载
- 积分：1
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Chapter_14_Programming
信号分析仪 编程手册主要是基于安捷伦IO 套件应用平台 简单实用的仪器控制编程程序(Signal analyzer e5052a programming manual is mainly based on agilent IO suite application platform Simple and practical instrument control programming procedures)
- 2017-07-19 10:20:55下载
- 积分：1
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Leture-notes-on-network-information-theory
Very good reference materials on network information theory
- 2011-07-22 16:20:21下载
- 积分：1
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D2D Power Control
无线通信中，设备到设备技术的控制可控制，提高抗干扰能力，频谱利用率(In wireless communications, control of equipment-to-equipment technology can be controlled to improve anti-interference ability, spectrum utilization)
- 2018-01-02 21:58:58下载
- 积分：1
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channelization1
可以实现多相滤波数字信道化，可以自己改各种参数(Multiphase filtering can be digitally channelized, and various parameters can be modified by itself.)
- 2018-09-29 16:11:11下载
- 积分：1
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基于DFT码本的波束方向图生成代码 Beamforming_DFT
基于DFT码本的波束方向图生成代码，通俗易懂(DFT based beam pattern generation code, easy to understand)
- 2020-07-03 00:40:02下载
- 积分：1
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时频信号分析
实现绘制信号的功率谱，两重自相关，滤波后时域，滤波器，频谱图，信号时域图以及自相关函数图等功能(The functions of drawing signal power spectrum, double correlation, filtering time domain, filter, spectrum, signal time domain and autocorrelation function diagram are realized.)
- 2021-03-01 21:39:34下载
- 积分：1
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QMD
说明： 实现了QPSK的调制，使用了ise自带的dds的IP核(QPSK is modulated and the IP core of DDS is used in ise.)
- 2019-05-05 15:37:58下载
- 积分：1
