gray-transfomation

matlab code (kMean.m) used kMean, clusturing. for Speech Recognition

Matlab code for Strapdown navigation system alignment(Matlab code for Strapdown navigation system alignment.)

说明：  《MATLAB在电子信息课程中的应用》中的第五章的习题源程序( MATLAB curriculum in electronic information applications in Chapter V source Exercises)

This function model the troposphere based on the inputs of the user: it adds clouds, fog,cirrus, wet air and dry air

对qpsk一个整体的仿真，从源信号的生成，调制，加载波，解调等，步骤清晰，与通用教材原理图逐步仿真而来(Qpsk simulation of a whole, the signal generated from a source, modulation, plus carrier demodulation step clarity, and general simulation of materials gradually from the schematic)

kl变换，dct，dft变换以及信号压缩(kl transform, dct, dft transform and signal compression)

caculates the ber for CBPSK, DPSK, and Coherent GMSK for fading and no fading usinganalytical means.

设计低通滤波器对信号进行滤波，对比分析滤波前后信号的频谱；(Design of low pass filter for signal filtering, comparative analysis before and after filtering the signal spectrum )

PSO_A Alogrithm ,Hybrid particle swarm-based-simulated annealing optimization algorithm

说明：  关于超宽带的一系列仿真包括高斯波形各阶导函数波形频谱以及采用高斯导函数的跳时超宽带仿真程序(On a series of ultra-wideband waveform simulation including the Gaussian wave function of the first derivative spectrum and the use of Gaussian derivative function of time-hopping ultra-wideband simulation program)