XACB

m qam ary for mimo channel m qam m qam

说明：  fsk信号的调制与解调，通信领域其他各种调制方式可以参考此文件稍作修改(fsk signal modulation and demodulation, modulation communications can refer to various other minor modifications to this document)

说明：  小波包，实现图像在小波变换下的各种图像处理方法。(Wavelet packet, wavelet transform of image in various image processing methods.)

demodulate_sig 解调 generate_noise 叠加高斯噪声 insert_value 插值 modulate_to_high 调制到载波 pick_sig 采样 plot_2way 绘制正交信号图 plot_astrology 绘制星座图 plot_snr 绘制误码率曲线图 project 主函数 Qam_modulation QAM调制函数 rise_cos 升余弦滤波 stem_2way 绘制滤波后的信号图 (qam matlab simulation)

Agorithm for smart antenna

一维光子晶体透射率与折射率差值的关系示意图，总体上来说，不同介质的介电常数差别越大，带隙的宽度也越宽。(The diagram of photonic crystal transmittance of one-dimensional and refractive index difference)

Determine the SNR for a quadrature delta-sigma modulator using simulations. The modulator is described by a noise transfer function (ntf) and the number of quantizer levels (nlev). The ntf/stf may be given in ABCD form. The band of interest is defined by the oversampling ratio (R) and the center frequency (f0).

基于数字地球的车载卫星导航定位的设计与实现(Digital Earth s satellite navigation and positioning the vehicle design and implementation)

说明：  负荷预测 可以修改数据集进行预测谢谢谢谢谢谢(prediction in power election)

基于改进粒子群算法的BP神经网络及其应用 里面很好的介绍了粒子群的优化效果(Particle swarm optimization based on improved BP neural network and its application within a very good introduction to the effects of particle swarm optimization)