NN

In this paper, we present a novel data-based method for simultaneous Maximum Likelihood (ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision multiplexing (OFDM) systems. Statistical properties introduced by the cyclic pre痻, a guard space between OFDM symbols, provide su眂ient information about the unknown parameters. It is shown that the redundancy introduced by this cyclic pre痻 allows the estimation to be performed without additional pilots. Simulations show that the performance of the frequency estimator is applicable in a tracking mode while the timing estimation can be used in an acquisition mode.

上海交大硕士毕业论文《基于最小熵谱估计的 高频重建算法研究》：本论文提出了一种基于最小熵谱估计的高频重建算法（论文中简称为（MEHFR），该算法利用最小熵准则对信号谱进行外推，从而重建出音频信号的高频分量，论文同时对提出的MEHFR算法作了改进和性能分析，并给出了MEHFR成功应用于目前主流音频编解码器——MP3的一个实例(This thesis puts forward an algorithm of high frequency reconstruction based on minimum entropy spectral estimation (called MEHFR in this thesis). MEHFR spreads the spectrum in the principle of minimum entropy and reconstructs the high frequency of audio signals also this thesis improves MEHFR and shows the analyses of performance at last applies MEHFR to ME3 which is the most popular codec of audio.)

book for reference dss systems

本程序及链路是模拟了瑞利信道下，用RLS算法还原出发送端的的有效信号。通过simulink实现，同时调用RLS的m函数。(This procedure and the link is simulated Rayleigh channel, the to restore valid signal to the sending end of the RLS algorithm. Simulink realization, while m function call RLS.)

Steganography text using an image

转载《小波分析理论与Matlab7实现例程》一书里面各章节的源码(Reproduced, " Wavelet analysis theory and Matlab7 implement a routine," a source of all sections of the book which)

OFDM系统的频率偏移量与error的关系曲线(OFDM systems with frequency offset error of the curve)

simulink Urban City in matlab

it s backpropagation neural network for iris data set

用matlab编写的大津法(outs自适应分割算法)(prepared using the Matlab- (outs adaptive segmentation algorithm))