featureextraction

正交频分复用（OFDM）是一种特殊的多载波传输技术。它可以有效地对抗多径衰落，能够以很高的频谱利用率来实现高速数据传输。分析介绍了OFDM系统的基本原理及系统性能，以Matlab为开发平台，仿真了OFDM系统的误码率，仿真结果表明OFDM系统在较低信噪比下也具有较好的性能(Orthogonal Frequency-division Multiplexing（OFDM） is a special kind of multi-cartier transmission technology. It can effectively overcome multi-path fading and increase the spectral usage efficiency to implement high-speed data transmission. This paper analyzes the basic principle of OFDM system and system performance, and simulates the Bit Error Rate （BER） of OFDM system on the platform of Matlab. The simulation results show that the OFDM has a good performance.[)

误差系统同步，matlaB程序，混沌系统(Synchronization error system, matlaB procedures, chaotic systems)

利用最小二乘法进行拟合多元非线性方程，微分方程组数值解方法，最小均方误差等算法的MSE的计算。( Multivariate least squares fitting method of nonlinear equations, Numerical solution of differential equations method, Minimum mean square error MSE calculation algorithm.)

车辆间通过协作进行消息发送的matlab仿真，车辆间采用联合博弈论机制进行消息共享(Between vehicle matlab simulation messages sent through collaboration, joint inter-vehicle use game theory message sharing mechanism)

mulNumYT mulRank1　解非线性方程组　 很实用的算法(mulNumYT mulRank1 nonlinear equations is very practical algorithm)

通过比较传统仅移相的波束与移相+理想延时的波束，来说明述S波段宽带阵列孔径渡越现象(To demonstrate the aperture effct of S_band windband array, this programe comparing the beam pattern of the traditional beamforming method "phase shifting only" with that of "phase shifting+ ideal delay".)

用于介绍预测控制及其matlab仿真的实现(The implementation of predictive control and the implementation of MATLAB simulation)

光纤光栅特性分析，对光纤光栅的反涉率特性进行了详细的研究 (Optical fiber Bragg grating characteristic analysis of fiber grating, the characteristics of the involvement of the detailed study)

用蚁群原理编写的商旅路径的优化问题，可以自动绘制各种曲线图，以反应收敛的程度(With the ant colony principle to write business path optimization problem, can be automatically draw all kinds of graph, in order to response the degree of convergence )

自己写的卡尔曼滤波源程序，仿真对匀加速转弯目标的跟踪(Write their own source of Kalman filter, simulation of the absorption curve to accelerate target tracking)