vebyk

GPS Global Positioning System for matlab ,

Autoassociative Memory performance with and without pseudoinverse weight matrix

绘制庞加莱截面图 在相空间中适当（要有利于观察系统的运动特征和变化，如截面不能与轨线相切，更不能包含轨线）选取一截面，在此截面上某一对共轭变量如x1和x.1取固定值，称此截面为Poincare截面，相空间的连续轨迹与Poincare截面的交点成为截点。(Poincare mapping sections in the phase space properly (should be beneficial to observe the system and changes in movement characteristics, such as the cross-section can not be tangent trajectory, but also can not contain rail line) to select a cross-section, in this section for a total of conjugate variables, such as x1 and X.1 take a fixed value, call this cross-section for the Poincare section, the phase space of the continuous trajectory of the point of intersection with the Poincare cross-section to become cut-off point.)

The TransferJet Tech. uses concatenated channel codeing (Reed-Solomon coding & convolutional coding) scheme. For, Reed-Solomon coding, r=224/240,16 parity bit. For Convolutional coding, K=3, r=1/2.

General DoubleBinaryTurbo simulation

unslotted model of sensor networks

该程序完成了一个DPSK通信系统的仿真，用均匀随机数发生器产生01比特对，用差分编码将每2比特符号映射到4种信号点中之一个，绘制出了DPSK的误码率。( This procedure has completed a DPSK communications system s simulation, produces 01 bit right with the even random number generator, maps with the differential coding every 2 bits marks to of 4 kind of signal locations, drew up the DPSK error rate. )

产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计三种高通，低通，带通滤波器对信号进行滤波处理，观察滤波后信号的频谱。(generating a continue time singal,which contains low,middle and high frequences,sampling it.analisize its spetrum.Then designing three kind filters are lowpass,highpass,bandpass filters and processing it.Observing its spetrum.)

Turbo Equalize matlab simulation

说明：  2011数学建模a题，运用地理统计学内梅洛指数法，和综合指数法，简单实用(2011 Mathematical modeling of a problem, the use of geographic statistical Neimei Luo index method, and the composite index method, simple and practical)