naviga120203

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

说明：  用matlab语言实现图像的锐化算法，效果很好，可以参数值设置不同可得到不同的锐化效果(Matlab language used to achieve image sharpening algorithm, well, you can set different parameter values can be different sharpening effect)

这是一个MIMO信道容量的计算。使用SVD分解和注水定理。(This is a MIMO channel capacity calculations. Using the SVD decomposition and water-filling.)

training a neural networks using error back propagation algorithm

此程序用于计算高光谱数据中Linear extrapolation法计算植被红边位置(This program used to calculate the spectral data Linear extrapolation method of vegetation red edge position)

多用户mimo下行链路预编码及用户调度的博士论文，里面的思想可以借鉴(Multi-user mimo downlink precoding and user scheduling the doctoral thesis, which can draw on the idea)

matlab进行拓扑排序的程序，在matlab中实现了拓扑排序算法。(matlab for topological sort of the process is implemented in matlab a topological sorting algorithm.)

给出了用中值滤波器去噪的matlab程序(give a denoise program on matlab by median filter )

模式识别分类器的设计，此为LMS法源码，经调试通过。所用数据为标准IRIS。(Pattern recognition classifier design, the source for the LMS method, adopted by the debugger. Data used as the standard IRIS.)

cybership 2 model supply vessel