v-blast4x4_dast

cdma系统matlab仿真，在两个用户的背景下采用了直接扩频码实现扩频解扩，bpsk调制解调，程序已经运行过，没有问题！(cdma system matlab simulation, in the context of two users using a direct spread spectrum spreading codes realize despreading, bpsk modem, the program has been run before, no problem!)

在图像增强的处理过程中采用了小波增强的方法，对模糊图像有一定的作用(In the image enhancement process to enhance the use of the wavelet method, the blurred image to a certain extent)

该代码是lte信道的仿真源码，用于仿真lte上行链路(The code is emulation lte source channel for the uplink simulation lte)

《数字信号处理》（程佩青第３版）课后上机实验的程序(" Digital Signal Processing" (Cheng Peiqing version 3) experiment on the computer after school program)

多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流，从而使子数据流具有低得多的传输比特速率，利用这些数据分别去调制若干个载波。所以，在多载波调制信道中，数据传输速率相对较低，码元周期加长，只要时延扩展与码元周期相比小于一定的比值，就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现，如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中，OFDM可以抵抗多径干扰，是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )

This derivation of the normalised least mean square algorithm is based on Farhang- Boroujeny 1999, pp.172-175, and Diniz 1997, pp 150-3. To derive the NLMS algorithm we consider the standard LMS recursion, for which we select a variable step size parameter, μ(n). This parameter is selected so that the error value , e+(n), will be

该代码描绘了服从正态阴影模型的路径损耗和自由空间的路径损耗。并且添加了阴影产生的随机效应。(The code depicts shading model subject to normal free-space path loss and the path loss. And add a shadow generated random effects.)

求原因字母a的倒谱，包括a的录音和用matlab求倒谱的程序(Reason for seeking letters a cepstrum, including a recording and using matlab program cepstrum)

一个二维直线运动的卡尔曼滤波器，比较简单。(A two-dimensional linear motion of the kalman filter, is relatively simple.)

final SerializableAssert exComparator.