test4PAMAWGN

：随着无线技术的飞速发展，频谱缺乏已经成为一个非常严重的问题．感知无线电技术能有效解 决频谱紧张的现状．介绍了感知无线电概念及其内涵，然后介绍了检测频谱空穴的方法．为提高检测概率、 降低设备复杂度及计算复杂度，将UWB与感知无线电结合，提出了基于能量检测及用户合作（EDAUC）的 协作感知方法．仿真和分析表明：该方法能有效提高检测频谱空穴的概率．(: With the rapid development of wireless technology, the lack of spectrum has become a very serious problem. Cognitive radio technology can effectively solve the spectrum tense situation. Introduced the concept of cognitive radio and its content, and then introduces the method of detection of spectrum holes. To improve the detection probability and reduces the complexity and computational complexity, the combination of UWB and cognitive radio is proposed based on energy detection and user cooperation (EDAUC) the cooperative sensing methods. Simulation and analysis: This method can improve the probability of detection of spectrum holes.)

介绍了卷积码的特点以及卷积码的编码和解码, 讨论了加入交织后的对卷积编码的误码率的改 善情况, 并(Describes the characteristics of convolutional codes, and convolutional code encoding and decoding, after the discussion by adding cutting the error rate of the convolutional coding to improve the situation and)

化学工业出版社出版的《MATLAB 从入门到精通》源代码(MATLAB book source codes.)

基于一篇文章的代码实现-结合场景信息进行的目标分类（文章及文件名）(An article based code implementation- combined with scenes of target classification information (articles and file name))

qpsk信号瑞利信道的仿真程序还有搞死的有ber(qpsk signal Rayleigh channel simulation program has also Gaosi ber)

the alamouti functions

雷达脉冲压缩程序,产生了线性调频信号和脉冲压缩信号,对雷达原理初学人员有帮助.(The radar pulse compression, resulting in a linear FM signal and the pulse compression signal, to help novice staff on the radar principle.)

Domain steganography

首先分析了基于非相干信号子空间(ISM)的宽带源DOA估计方法，并将基于数 据阵共轭重构的修正MUSIC算法应用于ISM方法中，提高了分辨能力而且可以分 辨相干信源。接下来讨论了相干信号子空间(CSM)方法的宽带相干源DOA估计， 分析了聚焦矩阵及聚焦频率对DOA估计性能的影响，给出了最佳聚焦矩阵的选择 标准和最佳聚焦频率的选择方法。 针对色噪声环境下宽带信号的波达方向估计，研究了将传播算子思想应用于 TCT聚焦矩阵的相干信源DOA估计新方法。该方法基于传播算子思想，直接利用 阵列接收信号估计噪声相关矩阵，得到一种快速TCT聚焦矩阵。从而提高了色噪声 环境下宽带信号DOA估计的性能，传播算子的应用避免了TCT算法中复杂的特征 分解，降低了运算量。通过计算机仿真证明了新方法的有效性和可行性。 关键词： 宽带阵列信号 波达方向估计 色噪声 信号子空间 聚焦矩阵(DOA MUSIC)

描述了LTE下行物理信道的信道编码的详细实现，包括CRC校验、turbo编码、咬尾卷积编码和速率匹配等。(Describes LTE downlink physical channel channel coding detailed implementation, including the CRC check, turbo encoding, tail-biting convolutional coding and rate matching.)