OFDMSYN

to caluculate the legendre polynomials

说明：  《变结构控制与MATLAB仿真》书中第二章例四的变结构控制程序( Variable Structure Control and MATLAB Simulation chapter book, four cases of variable structure control procedures)

关于蜂群算法matlab应用的一个例子。主要用于火焰图像。(About colony algorithm matlab application for an example. Mainly used in flame image.)

小孔径光电导天线产生太赫兹波的辐射特性(Produce small aperture photoconductive terahertz antenna radiation characteristics)

electronics related subjects details to get success in public sector and academic exams and for to get full marks without negative marking

关于自适应滤波，均衡算法的几个M程序，采用的算法分别是LMS，NLMS，RLS等等(several matlab programs are about adaptive filter and equalization for communication system. The algorithm is LMS, NLMS and RLS.)

1、根据干扰总功率要求，在PSK调制信号带宽内产生单音干扰和多音干扰信号，并叠加到产生的信号源上。 2、将收到干扰的信号进行频率搬移到基带，然后通过匹配滤波器以及解调过程得到信息，统计误码率并与真实信息的解调误码率进行对比，评估音频干扰对PSK信号的干扰效果。 (1, according to the total power requirement of interference generated tone signal interference and multi-tone interference in the PSK modulated signal bandwidth, and superimposed on the signal generated by the source. 2, the received interference signal to a baseband frequency shift, and the information obtained by the matched filter and a demodulation process, statistical error rate BER and the true information demodulation comparison, evaluation of the PSK signal, audio interference interference effects.)

it describes about the functionality of MAC layer in wimax implementation

经典谱估计，其中包括的算法包括周期图法，平滑法BT法等经典算法~(classic spectrum estimation,including period,smooth,and BT，algorithms~)

用阵列光电传感器实现空间窄带陷波功能时，采用右图所示的空间权重结构：共有N=2M+1个敏感元件，各敏感元件宽为w，间距为p，中心处敏感元件的权重为+2M，其他2M个敏感元件的权重皆为-1。求此权重函数的傅立叶变换及空间功率谱，并绘图说明当N=7，p=1mm，w=1/３mm时的空间功率谱的零点特征及其应用意义。(With a photoelectric sensor array to achieve narrow-band notch function space, with the weight shown on the right of the space structure: a total of N = 2M+1 a sensitive element, the sensor width w, spacing p, the center of the sensitive components of weight+2 M, 2M a sensitive element of the other weights are all-1. This function find the Fourier transform of the weight and space power spectrum, and the drawing shows that when N = 7, p = 1mm, w = 1/3mm space power spectrum at zero characteristics and application significance.)