均匀线阵方向图

Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn. This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices. The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1]. Ref: [1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )

说明：  这是用小波变换模极大值重建信号的源程序，数据是一心电信号，在matlab6。5下实现，来源于胡广书的《现代信号处理教程》附属光盘，现提供给大家供大家学习参考，滤波部分可以根据个人情况进行修改。程序包含四个部份，其中wave_peak实现信号的分解并求出模极大值(This is the wavelet transform modulus maxima reconstruction of the source signal, data signal is bent in matlab6. 5 under, and from the HU-book "modern signal processing Guide" CD subsidiary, it is available to everyone for your study reference, filtering can be part of the personal changes . Procedures include four parts, with wave_peak signal decomposition and sought modulus maxima)

关于MATLAB的经典教程，很全面，包含所有的关于MATLAB语言的规则等！(Tutorial on MATLAB classic, very comprehensive and include all on the MATLAB language rules!)

robust hinf control

Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof - the number of system dofs after constraints applied sid - ID matrix of system dof formatted as nnode*ndof discons - matrix record the node of displacement constrain ndof - number of dofs per node nnode - number of nodes in system(Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof- the number of system dofs after constraints applied sid- ID matrix of system dof formatted as nnode*ndof discons- matrix record the node of displacement constrain ndof- number of dofs per node nnode- number of nodes in system)

带转矩内环的转速，磁链闭环矢量控制仿真模型(Loop speed with torque, flux loop vector control simulation model)

这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。(This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, down conversion, Gaussian channel model, FFT, PAPR suppression, various synchronization, demodulation and decoding modules and system performance omnibus simulation system design reliability.)

说明：  bch，的编码。。在matlab上运行的。。无限接(bch)

SCPI_99 doc. SCPI driver develp doc.entry-level to deep level, comprehensive separately.

断层序列图像的层间插值代码，matlab环境下的代码，超简单的哦~( The interpolation of two pictures.)