-
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
-
C_MeansFun
基于matlab实现C-均值分类,模式识别简单聚类分析(experiment of C-mean to explain the course)
- 2013-12-23 09:45:43下载
- 积分：1
-
Digital_Rubik_s_Cube
给出了魔方的一种算法，对任意魔方，均能找到将其还原的方法。并且进行的仿真(An algorithm is given cube, for any cube, can be found to restore methods. ....)
- 2011-09-20 13:38:10下载
- 积分：1
-
jiefangcheng
用matlab实现求解多元方程问题，可以直接运行(To complete the jiefangcheng problem by matlab language)
- 2009-10-21 22:34:54下载
- 积分：1
-
CBIR-System
this is matlab code for content based image retri system (CBIR) system implemented in corel
- 2014-12-27 03:14:26下载
- 积分：1
-
KL2
利用K-L变换进行特征提取
通过类平均向量来实现类别投影
(By K-L transform feature extraction
Through the kind of average vector to achieve category projection
)
- 2011-12-04 13:41:23下载
- 积分：1
-
Modi_Gram_S
modified Gram-Schmidt (reduced QR factorization). A is a m-by-n matrix(m>=n)
- 2021-02-22 10:59:41下载
- 积分：1
-
FastICA
FastICA快速独立分量分析的MATLAB源代码，功能全面，有简洁易用的figure界面，操作容易上手，能处理多路混合信号，并输出计算结果，生成信号的图形，便于进一步的分析(FastICA fast independent component analysis of MATLAB source code, there are simple and easy to use interface, figure, operating particularly easy to use, able to handle multi-channel mixed-signal, and outputs the calculated results, the signal is generated graphics)
- 2010-03-03 19:31:48下载
- 积分：1
-
GMSK
为了提高移动通信系统中数据传输的有效性能,降低GMSK调制系统的误码率. 首先对GMSK调制系统进行分析,得到不同BT值GMSK调制的移动通信系统误码率和带宽的关系.通过引入具有纠错性能的编码技术,降低信息传输的误码率,提高系统的有效性. 本文给出了引入编码技术的GMSK调制系统的仿真模型,仿真结果表明,在相同的信噪比下,系统的误码率降低了1～2dB.(This paper mainly intends to improve the performance of the communication system and decrease the error bit rate of the information. First , the GMSKmodulation system was analyzed , and the relation of the BER and
bandwidth in the different BT value was obtained. By introducing the encoding technology , the error bit rate of the information was lowered so that the performance of systemwas improved. This paper presents a simulated model . The results show that the BER of the system in the same SNR can lower 1 to 2 dB.)
- 2010-05-16 21:43:28下载
- 积分：1
-
AMGA
hybrid Archive-based Micro Genetic Algorithm (AMGA) on
a set of bound-constrained synthetic test problems is reported.
The hybrid AMGA proposed in this paper is a combination of a
classical gradient based single-objective optimization algorithm
and an evolutionary multi-objective optimization algorithm.
- 2011-11-13 08:41:24下载
- 积分：1
