lab62-(2)

X射线检测中黑度与透照参数分布曲线的最小二乘拟合(X-ray inspection of the least-squares fit blackness and Radiographic parameters distribution curve)

在人们的生产活动和社会活动中常常会遇到这样的问题：经过一段时间之后，需要对具有相同类型的部门或单位（称为决策单元）进行评价，其评价的依据是决策单元的“输入”数据和“输出”数据，输入数据是指决策单元在某种活动中需要消耗的某些量，例如投入的资金总额，投入的总劳动力数，占地面积等等；输出数据是决策单元经过一定的输入之后，产生的表明该活动成效的某些信息量，例如不同类型的产品数量，产品的质量，经济效益等等．再具体些说，譬如在评价某城市的高等学校时，输入可以是学校的全年的资金，教职员工的总人数，教学用房的总面积，各类职称的教师人数等等；输出可以是培养博士研究生的人数，硕士研究生的人数，大学生的人数，学生的质量（德，智，体），教师的教学工作量，学校的科研成果（数量与质量)等等．根据输入数据和输出数据来评价决策单元的优劣，即所谓评价部门（或单位）间的相对有效性．(In people s productive activities and social activities often encounter such a problem: After a period of time, need to have the same type of departments or units (referred to as the decision-making unit) to evaluate the basis for his assessment in decision-making unit "input "Data and" output "data, input data refers to the decision-making unit in certain activities that need to consume certain amount of, for example, the total funds invested, the investment of the total workforce number, area, etc. output data through the decision-making unit After a certain input to produce the show the effectiveness of the activity of certain amount of information, such as different types of product quantity, product quality, economic efficiency and so on. Be more specific, said, for example, in evaluating a city s institutions of higher learning, the input can be the year the school funds, the total number of faculty, teaching a total area of space, all kinds of titles the number of teachers, etc)

matlab图像处理的一些命令，还有使用的例子，对图像处理初学者应该会有帮助的(matlab image processing commands, there are examples of the use of image processing should be helpful for beginners)

中国一号信令线路信令中国一号信令线路信令(digital channel associater exchange line signalling public network, standard)

信道编码采用卷积码，解码使用Viterbi解码。调制给出QPSK、16QAM 两种调制方式，并在AWGN和瑞利信道两种信道模型下传输。(Channel coding using convolutional codes, decoding using the Viterbi decoder. Given modulation QPSK, 16QAM modulation in two ways, and in the AWGN and Rayleigh channel model of two-channel transmission.)

本程序是利用Householder变换分解得到Q,U(This program is using Householder transform decomposition of Q, U)

基于天线选择的准正交空时分组码的自适应分析。(Analysis of adaptive antenna selection quasi-orthogonal space-time block codes.)

关于ofdm的matlab仿真，包括绝大部分基于802.11a标准的程序。(about matlab simulate of ofdm system,including the most program base on 802.11a standar.)

给出信道离散表示，可得到信道幅频响应及相频响应。(Given the discrete expression of communicaton channel, it may show the amplitude frequence response and the phase frequence reponse.)

说明：  matlab 遗传算法的程序，主函数 T_youhua。 (Matlab GA procedures, the main function T_youhua.)