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kuopin
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)
- 2011-01-09 16:54:26下载
- 积分：1
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wavelet
这个.M文件时利用B样条小波进行的小波边缘提取算法。(This. M file using B-spline wavelet for the wavelet edge detection algorithm.)
- 2010-05-25 14:40:47下载
- 积分：1
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checks-RGB-show-and-grayscale
支票印鉴图的R、G、B三个分量的显示图像并将RGB图转换为灰度图像(Check seal map R, G, B three components of the display image was converted to grayscale and RGB images)
- 2011-05-21 16:39:31下载
- 积分：1
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radar-ambiguity-function
用于计算雷达模糊函数及其性质，关系到雷达的性能计算，很有用！(It s of great importance in computing radar s ambiguity function and property.)
- 2014-03-28 09:22:14下载
- 积分：1
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zernik_moment
Calculation of zernike moments from binary image BW
- 2009-09-24 18:29:33下载
- 积分：1
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signal
说明： 随机信号处理的仿真，一个余弦信号加高斯白噪声，用自相关函数恢复。(Random signal processing simulation, a cosine signal plus Gaussian white noise with autocorrelation function recovery.)
- 2010-04-15 16:28:19下载
- 积分：1
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SIS_Model
matlab传染病sis及相关模型的图的模型，及运用(Matlab infectious disease sis and related model diagram model, and application)
- 2012-08-17 16:07:46下载
- 积分：1
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b44
此文件为模理退火的matlab源代码,适合参加数学建模的同学使用(The file mode rationale annealing matlab source code, suitable for students to participate in the mathematical modeling)
- 2012-11-16 14:31:59下载
- 积分：1
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RADAR_PULSE_COMPRESSION_MultipleType
Source code for MULTIPLE RADAR PULSE COMPRESSION: barker, frank, costas, polyphase(P1--> P4), polytime (T1--> T4), Linear Frequency Modulation (LFM). CHECKED & WORKED for me
- 2018-01-05 10:47:15下载
- 积分：1
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matlab3
文档中介绍了matlab数值分析的方法，并且有一些实例。(The document describes the method of numerical analysis matlab, and there are some examples.)
- 2010-01-12 17:20:34下载
- 积分：1
