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demodulation
基于IEEE802.11a标准的星座图解调源程序,
包括BPSK,QPSK,16QAM,64QAM(Based on IEEE802.11a standard tune source constellation diagrams, including BPSK, QPSK, 16QAM, 64QAM)
- 2007-12-25 10:26:43下载
- 积分:1
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MPEG_Decoder
code for the mpeg decoder.
- 2011-01-24 18:36:54下载
- 积分:1
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OFDM
OFDM,实际上OFDM是MCM Multi-CarrierModulation,多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开,这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。在向B3G/4G演进的过程中,OFDM是关键的技术之一,可以结合分集,时空编码,干扰和信道间干扰抑制以及智能天线技术,最大限度的提高了系统性能。(OFDM)
- 2010-05-21 14:56:54下载
- 积分:1
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123
遥感数字图像处理实习报告含Matlab处理代码,有非常详细的代码和事例(Remote sensing digital image processing internship report containing Matlab handling code)
- 2015-04-01 15:40:07下载
- 积分:1
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fianl
车牌定位的一种实现,主要利用了梯度差分提取高频分量后水平、竖直投影提取边界,规划定位(An implementation of license plate location, the main advantage of the high frequency components extracted after differential gradient level, vertical projection to extract the boundary, planning and positioning)
- 2011-07-16 10:32:35下载
- 积分:1
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dataanalysis
数据分析,可供MATLAB学习或者自主编程者提供参考(data analysis)
- 2010-09-01 16:42:37下载
- 积分:1
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simulationofchannelpaper
Mat Lab sample file for simulation
- 2009-05-23 20:40:47下载
- 积分:1
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kmeans
说明: 简单的kmeans 算法代码 ,希望能有帮助(Simple kmeans algorithm code, hoping to help)
- 2010-04-09 17:27:54下载
- 积分:1
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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分:1
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gawywwzm
仿真效率很高的,包含特征值与特征向量的提取、训练样本以及最后的识别,直线阵采用切比学夫加权控制主旁瓣比,包括广义互相关函数GCC时延估计,含噪脉冲信号进行相关检测。(High simulation efficiency, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Linear array using cut than learning laid upon the right control of the main sidelobe ratio, Including the generalized cross-correlation function GCC time delay estimation, Noisy pulse correlation detection signal.)
- 2016-03-24 21:34:47下载
- 积分:1