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matlab understandin concept

MATLAB图像变换源码，包括CWT、DCT、DFT和DWT。(Matlab image from source code, including cwt, dct, dft and dwt.)

模糊神经网络的预测算法,嘉陵江水质评价,MATLAB的经典算法(Fuzzy neural network prediction algorithm, Jialing River water quality assessment, MATLAB classical algorithm)

对线性调频脉冲压缩雷达进行了仿真，考虑了实际目标回波包含的系统噪声和地物杂波、高频放大器设计、混频器设计、中频放大器设计、正交鉴相器设计、时域和频域脉冲压缩(脉压)、MTI、MTD及CFAR恒虚警等多个方面。(This code simulates the system of LFM pulse compression radar taking into account of system noise and clutter contained in object signal and many other aspects important in a complete radar system.)

LBM格子波尔兹曼 matlab例程数个，初学者适用，不可多得。(LBM Lattice Boltzmann several matlab routines, suitable for beginners, rare.)

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

说明：  matlab 书籍源码matlab 书籍源码matlab 书籍源码(Source Books Source Books matlab matlab matlab source books)

本程序为希尔伯特变换程序～里面附带了emd.m经验模态分解程序(需要下载时频工具包)(This program for the Hilbert transform ~ it comes with the emd.m empirical mode decomposition program (need to download the time-frequency toolkit))

MAT(rix) LAB(oratory) predstavlja snaž an softverski paket koji je i programski jezik visokog nivoa i raèunarski vizuelizacioni alat. Program je prvobitno bio napisan kako bi se obezbjedio lak pristup softveru za rad sa matricama razvijenom u okviru projekata LINPACK i EISPACK u Argonne National Labs. Tokom godina evoluirao je u standardni alat za numerièka izraèunavanja na univerzitetima š irom sveta i u razvojnim odeljenjima u industriji. Trenutno je aktuelna verzija 5.3.1, a postoje realizacije za viš e hardverskih platformi. MATLAB sadrž i i niz specijalizovanih alata u obliku tzv. skript datoteka (M-datoteke) koje proš iruju njegove moguã nosti u odreeenim klasama problema kao š to su digitalna obrada signala, automatsko upravljanje, modeliranje i simulacija sistema, neuralne mrež e, fazi logika, parcijalne diferencijalne jednaèine itd.

最近用Mega128写了一个128点FFT程序，浮点运算，加汉宁窗。由于窗函数和旋转因子通过查表得到，所以速度还可以，程序中给的初值是通过高速AD采集的20KHz正弦信号。计算结果与Matlab的FFT函数得到的结果相同。 (Mega128 recently wrote a 128-point FFT procedures, floating-point operations, Hanning window. Since the window function and the twiddle factor look-up table has been adopted, so the speed can also be, the initial value to the process through high-speed AD collected 20KHz sinusoidal signal. The calculation results with the Matlab)