PSO-SVM

c based questions for interviews and exams

drpe encryption by optical fiber

说明：  DS-CDMA直序扩频通信系统仿真源码，内部含有程序的详细中文解释以及word形势，系统大家下载~(DS-CDMA Direct Sequence Spread Spectrum Communication System Simulation source code, the internal procedures in detail with the Chinese to explain the situation and the word, the system you download ~)

In the distributed processing, where common labeled data may be not available for designing classifier ensemble, however, an ensemble solution is necessary, traditional fixed decision aggregation could not account for class prior mismatch or classifier dependencies in electronic technology. Previous transductive learning strategies have several drawbacks, e.g., feasibility of the constraints was not guaranteed and heuristic learning was applied. We overcome these problems by developing improved iterative scaling (IIS) algorithm for optimal solution. This method is shown to achieve improved decision accuracy over the earlier approaches in electronic technology

使用matlab实现对语音信号的端点检测（可以重复检测）并自动绘制出结果(speech signal endpoint detection matlab program)

说明：   Buck－Boost电路的建模与仿真主程序

用matlab制作的一个有趣程序，内容为打气筒打气球的动画演示。(Using matlab produced an interesting program, says playing balloon pump animation.)

simple laboratory problem volved by matlab 2

Vehicle Serial Numbers ,and Money Value detection

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)