powerSD

Cognitive Radio Simulation Code with MATLAB

skin tone hide data in stegnography

this pdf provide good information about the topology control.

RED HAT STUDY GUIDE FOR THE BEGINERS OF REDHAT

NC-OFDM系统的导频设计改进方法性能分析(Pilot design method of NC- OFDM system to improve performance analysis)

关于线性调频信号，输出它的时域、幅度谱、相位谱(Linear FM signal, the output of its time-domain amplitude spectrum and phase spectrum)

OFDM程序示例：采用64子信道，应用16QAM传输，每个子载波均传输相同的比特数4，不使用信道编码；使用迫零均衡和MMSE均衡，比较两者性能。(OFDM procedures Example: a 64-channel, application 16QAM transmission, each transmission subcarriers are the same number of bits 4, do not use channel coding the use of force balance and MMSE zero balance, compare the performance.)

使用matlab进行小波变换的源程序，适合学习小波的初学者使用(wavelet transform via matlab)

三自由度平台控制律设计系统框图，实现对平台的三个角度的跟踪(Three degrees of freedom platform control law design system block diagram, tracking the three angles of the platform)

Constant k filters, also k-type filters, are a type of electronic filter designed using the image method. They are the original and simplest filters produced by this methodology and consist of a ladder network of identical sections of passive components. Historically, they are the first filters that could approach the ideal filter frequency response to within any prescribed limit with the addition of a sufficient number of sections. However, they are rarely considered for a modern design, the principles behind them having been superseded by other methodologies which are more accurate in their prediction of filter response.A filter in which the product of the series and shunt impedances is a constant that is independent of frequency.