vb

Returns true when code is executing in GNU Octave

多小区、多用户蜂窝小区的建模。其中每个小区内设置一个基站，以基站为圆心，以一定半径在基站附件分布n个用户。可直接运行。(Multi-cell, multi-user cell modeling. Which sets a base station within each cell, the base station as the center, the distribution of n users to a certain radius of the base station attachment. Can be run directly.)

a code source for sampling an analog signal & reconstruction it

本算法为粒子群优化算法，适用于初学者，压缩包中附带了一个基本函数用于实践。(This algorithm is a particle swarm optimization algorithm, which is suitable for beginners. A basic function is attached to the compression package for practice.)

OFDM的详细仿真代码，有信道编码，调制，信道估计等(OFDM detailed simulation codes, channel coding and modulation, channel estimation, etc.)

用于图像融合的matlab 仿真程序 在Matlab7.0下运行(image fusion matlab code)

principal component analysis(PCA)主成分分析，Matlab实例代码(principal component analysis(PCA))

说明：  阵列信号处理理论与应用相关matlab代码，资源很多，很全，包含信源数估计、doa估计、music算法等(Array signal processing theory and application related matlab code, many resources, very comprehensive, including source number estimation, doa estimation, music algorithm, etc.)

设计了一种具有异周期毗邻结构的新型循环前缀,提出了相应的OFDM 频偏估计算法。该异周期毗邻结 构循环前缀由CP1 和CP2 两部分构成,使OFDM 符号具有双周期特征。通过引入较短的CP1 ,牺牲极少的资源, 可以有效克服现有频偏估计方法中的固定频偏估计范围的缺陷,同时具有频偏估计范围大,精度高的特点。(This paper proposes a heter2cycle abutted CP st ructure and a two2step OFDM carrier f requency calibration algorithm. The cyclic prefix of the new cyclic prefix is made up of CP1 and CP2 , which provide the character of double2cycle for OFDM symbol. By int roducing a short CP1 , the proposed algorithm can overcome the defect of fixed f requency off set estimation range in current f requency estimation method , and achieves larger f requency esti2 mation range while obtaining fine f requency calibration.)

北航强度大作业,包括两道题，代码、程序都是做好的，请放心使用(The Beihang intensity operations, including two title, code and procedures do a good job, ease of use)