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5824991
系统分别对无线通信中的几种重要的多址接入协议进行了仿真,包括pure-ALOHA,slotted-ALOHA,CSMA以及(Several important multiple access protocols in wireless communication are simulated by the system, including pure-ALOHA, slotched-ALOHA, CSMA, and the like.)
- 2019-03-28 11:32:12下载
- 积分:1
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DVB-S2-communication-chain-master
DVB-S2通信链的设计与仿真,使用了LDPC编码以及多种QAM调制方式。(Design and simulation of a DVB-S2 communication chain,LDPC coding and a variety of QAM modulation methods are used.)
- 2018-04-28 16:36:23下载
- 积分:1
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523496
生成2KHz和8KHz的混合信号,使该信号通过上述滤波器,观察滤波前后的波形变化和频谱分布情况, 在改信号中加入高斯白噪声,(The mixed signal of 2KHz and 8KHz is generated so that the signal passes the above filter, the waveform change and spectrum distribution before and after filtering are observed, and Gao Si white noise is added to the modified signal.)
- 2019-03-28 07:45:40下载
- 积分:1
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SC_FDMA
编写的基于LTE的SC_FDMA程序,其中包括调制、IFFT、子载波映射(分布式和集中式)、FFT及加CP。自己编写,可以运行。(LTE-based SC_FDMA written procedures, including modulation, IFFT, sub-carrier mapping (distributed and centralized), FFT, and plus CP. I have written, you can run.)
- 2021-04-21 14:18:49下载
- 积分:1
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gray_counter_vhd
ldpc verilog code has been descripted in this program
- 2017-12-06 01:05:36下载
- 积分:1
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Optisystem中MatlabComponent模块的扩展应用
通过一个光相位调制器的实例,介绍利用Optisystem 中Matlab Component组件联合M atlab实现用户自定义光学组件的方法。对相位调制基本原理、相位调制器理论模型和实现模型的Matlab代码进行分析,介绍如何将用户自定义器件功能代码关联Matlab Component组件进行仿真,并利用自定义的相位调制器对理论分析进行验证。(Through an example of an optical phase modulator, this paper introduces the method of implementing user-defined optical components by using Matlab Component component in Optisystem combined with M atlab. The basic principle of phase modulation of the phase modulator, theoretical model and implementation model of Matlab code analysis, describes how to simulate the user device function code associated Matlab Component components, and the theoretical analysis was verified by using custom phase modulator.)
- 2020-11-28 11:49:28下载
- 积分:1
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am,pam等信号
详细分类介绍了AM,BPSK,BFSK,PAM信号的循环谱与循环自相关函数的生产,具有可操作性。(The production of cyclic spectrum and cyclic autocorrelation function of AM, BPSK, BFSK and PAM signals is introduced in detail, and it is operable.)
- 2018-05-03 09:06:27下载
- 积分:1
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far_near
程序使用了自相关性和互相关性较好的gold码作为扩频序列,直扩,扩频增益设置为31,模拟用户数为4(Program uses a self-correlation and cross-correlation of the better gold code as spreading sequence, direct expansion, spreading gain is set to 31 to simulate the number of users of 4)
- 2020-07-02 04:40:01下载
- 积分:1
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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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8PSK
8psk解调代码,采用garner 符号时钟同步(8PSK demodulating code with garner symbol clock synchronization)
- 2018-07-21 20:58:28下载
- 积分:1