zfpro

PPM　脉冲位置调制，Matlab 代码，它描述了PPM 技术在UWB 超宽带无线通信中的应用(PPM, Pulse Position Modulation in use of UWB.)

expand PN Sequence for CDMA 2000

Induced Nested Galactic Bars Inside Assembling Dark Matter Halos

This estimator correctly identifies the two distinct directions of arrival.

systemiew 频谱分心 包含那奎斯特定律 正弦载波定律 频谱泄漏 (systemiew distractions include that Qwest' s law spectrum carrier sine law of spectral leakage)

Matlab基础及其应用教程，非常好用，呵呵呵呵(Matlab basis of their application tutorial, very easy to use)

说明：  按FPE定阶的 源程序：fpe.cpp M序列：M序列.txt 白噪声：Gauss.txt 程序中先用依模型阶次递推算法估计模型的参数，再用fpe方法判断模型的阶次。 程序运行结果如下： n: 1 判断阶次FPE的值: 0.0096406 -0.481665 1.07868 n: 2 判断阶次FPE的值: 0.00875755 -0.446739 0.00498181 1.07791 0.0527289 n: 3 判断阶次FPE的值: 0.0087098 -0.459433 0.120972 -0.0569228 1.07814 0.0390757 0.116982 n: 4 判断阶次FPE的值: 0.000396884 -0.509677 0.4501 -0.200906 0.0656188 1.07991 -0.0156362 0.442989 0.0497236 n: 5 判断阶次FPE的值: 3.2095e-007 -1.18415 0.813123 -0.517862 0.34881 -0.116864 1.07999 -0.744141 0.474462 -0.253112 0.122771 n: 6 判断阶次FPE的值: 3.23349e-007 -1.14659 0.76933 -0.487651 0.329676 -0.10377 -0.00440907 1.07999 -0.703574 0.447253 -0.235282 0.113587 0.00479688 从以上结果可以看出，当n=5时，fpe值最小，所以这时的模型阶次和参数估计值为最优结果： 3.2095e-007 -1.18415 0.813123 -0.517862 0.34881 -0.116864 1.07999 -0.744141 0.474462 -0.253112 0.122771(err)

matlab程序将传递函数通过Z变换使其离散化，然后再把得到的脉冲传递函数改写成差分方程。便于接下来一步的C程序编程。(matlab program will transfer function Z-transform them through discrete, then put the resulting pulse transfer function of a differential equation rewritten. Facilitate the next step of the C programming.)

matlab_几乎涵盖了所有命令，很全，很实用！(matlab_ cover almost all the orders, very wide, very practical!)

说明：  自己保存的北航的集和的sar代码 可以下载学习(Save your own beihang set and THE SAR code can be downloaded to learn)