jibenyiqunjulei

text hide in an another image using LSB steganography.

利用firpmord和firpm函数设计双带通滤波器，其指标为，第一带通指标：f =4kHz,f =5 kHz ,f =3.6 kHz ,f =5.4 kHz 第二带通指标：f =6kHz,f =7 kHz ,f =5.6 kHz ,f =7.4 kHz 通带衰耗A <3dB，阻带衰耗A >40dB，抽样频率f =20kHz。(Double belt pass filter using firpmord and firpm function design, for its indicators, through the first area index: f = 4 kHz, f = 5 kHz, f = 3.6 kHz, f = 5.4 kHz The second bandpass indicators: f = 6 kHz, f = 7 kHz, f = 5.6 kHz, f = 7.4 kHz Pass band attenuation A < 3 db, stop-band attenuation A > 40 db, f = 20 KHZ sampling frequency.)

A boost converter is directly connected to the PV array with MPPT for operating at the maximum power point. A regulation cascades (current/voltage) applied using SMC for the control of DC converter a loop of voltage makes it possible to produce the current of reference.

Visual Cryptography is based on cryptography where n images are encoded in a way that only the human visual system can decrypt the hidden message without any cryptographic computations when all shares are stacked together. This paper presents an improved algorithm based on Chang’s and Yu visual cryptography scheme for hiding a colored image into multiple colored cover images. This scheme achieves lossless recovery and reduces the noise in the cover images without adding any computational complexity.

这是一个相对完整的直接序列扩频码分多址的通信系统的仿真设计，包括编码，扩频调制，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 direct sequence spread spectrum CDMA communications system simulation design, including coding, spread spectrum modulation, demodulation and decoding module, and system simulation including system performance, validate the reliability of system design.)

antnet algorithm using network

计算一个序列的AR模型系数的前3个系数值,非常好用(Calculating a sequence of former three coefficients AR model coefficients, very handy)

一个滤波器的设计，大家看看了！！！！！！！！！！！！！(filter)

使用matlab进行机械传动系统的建模与仿真，内容包括ppt文档和模型文件。(Matlab mechanical drive system using modeling and simulation, including model documents and ppt files.)

matlab教程，内容为ppt格式的，对于matlab入门有详细的介绍(matlab tutorial ppt format content, for a detailed description entry matlab)