lda_theory

在matlab/simulink中建立无刷直流电机的模型，在模型的基础上采用三闭环控制实现无刷直流电机的位置精确控制(In matlab/simulink establish in brushless dc motor model, based on the model using the three closed-loop control achieve brushless dc motor position accurate control )

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.)

matlab code for ray leigh

这是一个声纹识别程序，基于matlab实现，通过建模，简历声纹模型，认证时自动识别(This is a voiceprint identification procedures, based on matlab realize, through modeling, resume voiceprint model, automatic identification authentication)

FILTER DESIGN BY IMPULSE INVARIANCE

dct隐写技术matlab实现资料。算法原理：通过在一个图像块中调整两个DCT系数的相对大小，隐藏秘密信息。 将载体图像分为8×8的块，做二维DCT变换 用来表示选中的两个系数的坐标对于第i bit秘密信息 if（要隐藏信息‘1’） make else make 逆DCT变换，还原图像 (dct steganography matlab implementation information. Algorithm principle: an image block by adjusting the relative size of the two DCT coefficients, hidden secret information. The vector image is divided into 88 blocks, making two-dimensional DCT transform coefficients used to represent the coordinates of the selected two for the first i bit secret information if (to hide information ' 1 ' ) make else make the inverse DCT, restore image)

k-mean算法，使用matlab工具箱工具对图像进行聚类分割。(k-mean algorithm, using matlab clustering toolbox tool for image segmentation.)

The Wind Farm (DFIG detaile el demo of the Distributed Resources application library does not simulate because the Initial state vector is not defined. There i a .Mis file is normally d at t simulation start in order to define an initial state vector that starts the model in steady state.

仿真BPSK、QPSK、GMSK等基本调制方式。(Simulation BPSK, QPSK, GMSK modulation scheme.)

信息传输 资源调度 比例公平算法 无线 比例公平(Resource scheduling proportional fairness algorithm)