exa060206

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

Matlab communication toolbox.

对螺旋桨进行初步的设计和分析,在matlab环境下，通过GUI界面设置输入参数可得到初步的设计结果(Preliminary propeller design and analysis, in the matlab environment, set the input parameters available through the GUI interface preliminary design results)

动态演示不同参数下的lorenz混沌吸引子(Dynamic playing the different parameter of the lorenz chaos attractor)

一个自己写的前景提取程序，采用背景减除法得到运动前景，背景通过统计平均得到。(a matlab code for foreground Extraction , using background subtraction method to get moving foreground ,and we get the background by statistical averaging.)

一对外啮合直齿圆柱齿轮副的综合刚度计算，用matlab编程计算(A pair of external spur gears meshing comprehensive stiffness calculation, calculation with matlab programming)

粒子群算法的具体代码，简单易行非常好用，放在word中，复制出来可直接使用(PSO algorithm specific code is very simple to use, on the word, copy it can be used directly)

采用粒子群算法进行优化，比如损伤识别和传感器优化布置(optimizaiton based on particle swarm algorithm)

说明：  每个传感器具有一定的范围和精度，而且周围环境可能对它们产生干扰。即单传感器只能提供部分不精确的信息，从而不能排除对外界环境描述的歧义性。鉴于各传感器性能上的差异表现出的互补性，如果综合各个传感器的信息，就能得到比单一传感器所能提供的更准确可靠的信息。简言之，与单一传感器相比，多传感器数据融合由于信息的冗余性和互补性存在很多方面的优势。 多传感器融合(Each sensor has a certain range and accuracy, and the surrounding environment may interfere with them. That is to say, a single sensor can only provide some inaccurate information, so it can not rule out the ambiguity of the description of the external environment. In view of the complementarity of the differences in the performance of each sensor, if we synthesize the information of each sensor, we can get more accurate and reliable information than a single sensor can provide. In short, compared with a single sensor, multi-sensor data fusion has many advantages due to the redundancy and complementarity of information.)

有关信道编码的word文档，内容很详细，(Channel coding the word about the document, the content is very detailed,)