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FQPSK
本论文首先介绍了当前深空通信的编码调制技术的现状与发展,阐述了以往
的深空通信中的编码和调制技术的方案和局限性,提出LDPC码和FQPSK调制的
优越性和发展前景。第二章描绘了LDPC码的奇偶校验矩阵的图形表示、生成方
式和译码方法,并比较二元LDPC码和多元LDPC码的优越性和实现问题。第三
章在介绍FQPSK调制的方案的由来、改进和发展的基础上,对其进行了功率谱分
析,介绍了一些常规的解调方案。(This paper introduces the current situation and development of the technology of deep-space communication code modulation on the coding and modulation techniques in deep space communications program and limitations of the proposed of LDPC codes FQPSK modulation superiority and development prospects. Chapter II depicts a graphical representation of the LDPC code of the parity check matrix generation method and decoding method, and compare the superiority of binary LDPC codes and multiple LDPC code and implementation problems. Chapter origin in the introduction FQPSK modulation program, improvement and development on the basis of its power spectrum analysis, conventional demodulation.)
- 2013-04-10 21:18:24下载
- 积分:1
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rader1
说明: 雷达模拟LFM脉冲信号,模拟目标回波(目标距离50km,速度100m/s)和噪声信号(信噪比)(Radar simulated LFM pulse signal, simulated target echo (target distance 50km, speed 100M / s) and noise signal (signal-to-noise ratio))
- 2020-04-12 11:38:29下载
- 积分:1
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gaijinzishiyingxiangguan
该程序实现改进的自适应相关算法,两个matlab文件,一个为函数,该函数求出信号特征量的马氏距离平方并通过梯度下降法训练出其固定阈值,另一个为主函数,调用该函数文件;该程序将4路信号,每一路信号特征量的马氏距离平方及其固定阈值求出来,并一起画出图来。
(The program features improved adaptive correlation algorithm, two matlab files, one for the function that calculate the square of the Mahalanobis distance of signal characteristics by gradient descent to train the fixed threshold, the other main function, call The function files the program seek out the square of the Mahalanobis distance and fixed threshold of each channel signal, there are four chanel signal,then draw them out together)
- 2011-08-30 18:59:02下载
- 积分:1
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物流配送路径优化学习
可以求解MATLAB VRP问题中的距离问题 省去输入的麻烦(It can solve the distance problem in MATLAB VRP problem and save the trouble of input.)
- 2018-09-13 15:38:22下载
- 积分:1
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matlab入门简介,北京邮电大学多媒体通信中心
matlab入门简介,北京邮电大学多媒体通信中心
-matlab entry profiles, Beijing University of Posts and Telecommunications Multimedia Communication Center
- 2022-03-13 05:32:26下载
- 积分:1
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MSE_compare
ofdm信道估计的MSE性能比较,阐述了几种经典算法仿真性能的对比(MSE compare of OFDM estimation)
- 2010-11-11 09:23:28下载
- 积分:1
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myAR
该程序给出了基于AR时间序列建模的陀螺随机漂移模型,并利用卡尔曼滤波方法滤除陀螺随机漂移,经验证,有良好效果。(failed to translate)
- 2010-01-23 16:55:07下载
- 积分:1
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MatlabCode
点源定通量地下水污染物非稳定迁移计算程序,程序内有中文说明。(point source pollutants given steady migration flux calculation procedures)
- 2013-08-10 10:34:08下载
- 积分:1
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Taxicab_CCDF
THIS IS THE MATLAB SOURCE CODE
- 2014-02-25 11:50:04下载
- 积分:1
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Asaoka
该源码是基于matlab编写Asaoka算法,用于高速铁路沉降预测(The source code is written in matlab Asaoka based algorithm for high-speed railway settlement prediction)
- 2021-03-24 15:49:14下载
- 积分:1