ultrasoundworkstation

写一个MATLAB程序，实现4个时间同步的CDMA用户的仿真，其中每个用户都使用长度为L=31的不同的Gold序列。每个用户都采用它们代表的Gold序列的二进制（+-1）调制。每个用户的接收端将这个复合的CDMA接收信号相关，而这个复合的信号都在它们各自的序列上受到AWGN的污损（基于按码片相加）。在N=10000信息比特下，仿真估值并画出作为SNR的函数的CDMA通信系统的差错概率。(Write a MATLAB program, the realization of the four time synchronization of the simulation of CDMA users, including the length of each user for use of the L = 31 different Gold sequences. They are used for each user on behalf of the Gold sequence of binary (+-1) modulation. Each user' s receiver will receive the composite CDMA signal, and this composite signal in the sequence of their respective defaced by the AWGN (additive based on the chip by). Information in the N = 10000 bits, the simulation value and draw as a function of SNR of the CDMA communication system the probability of error.)

EA=R factorization in matlabn

说明：  大学本科数字信号处理实验代码，用MATLAB编写，分6次实验(Undergraduate Digital Signal Processing Experiment code written with MATLAB, sub-6 experiments)

粗糙集理论是一种基于对现实世界进行不确定描述的理论,属性约简是粗糙集理论的核心理论之一。对粗糙集理论进行阐述,并给出基于启发式的知识约简算法,最后结合MATLAB程序实例说明了该算法的可行性与有效性。(Rough set theory is based on the uncertainty of the real world is described in theory, attribute reduction is the core theory of rough set theory one. Elaborate on the rough set theory, and gives the knowledge-based heuristic reduction algorithm, and finally with MATLAB program example illustrates the feasibility and effectiveness of the algorithm.)

能够计算出一个图像矩阵的灰度梯度共生矩阵，并计算出其协方差(To calculate an image matrix of gray gradient co-occurrence matrix, and calculate the covariance)

degree->[degree minute second]

重复控制的实现。提供matlab源码实现，及simulink实现。(RepetitiveControl realization.)

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)

使用matlab软件的M文件开发节流装置程序，进行节流计算(M-files using matlab software development process throttling device, the throttling calculation)

具有服从瑞利分布杂波的雷达目标恒虚警处理(CFAR radar target simulation with a Rayleigh distribution of clutter)