radonqiuxielv

参考3GPP相关标准并根据LTE技术特征和关键特性，对下行链路级进行设计，包含以下步骤：比特生成、CRC校验、码块分割、编码、速率匹配、码块级联、加扰、调制、层映射、预编码、资源映射、OFDM符号生成和天线映射。为模拟无线传输信道，还需仿真相应的信道模型。收端则是发端的严格逆过程，对接收信号进行一系列处理，得到代表原始发送的信息并判决。(References 3GPP LTE technology standards and in accordance with characteristics and key characteristics of the downlink stage design, comprising the steps of: generating bits, CRC checksum, code block segmentation, encoding, rate matching, code block concatenation, scrambling, modulation , layer mapping, precoding, resource mapping, OFDM symbol generation and antenna mapping. Analog wireless transmission channel, the need to emulate the corresponding channel model. The receiving end is the inverse of the originator of the rigorous, a series of processing the received signal, the representation of the original transmitted information and judgment.)

car number plate recognition system in matlab

说明：  这是一个矩阵变换器双空间矢量控制的Matlab仿真程序，有simulink和s函数，用M语言编程。是作为电力行业的研究仿真(This is a matrix converter double-space vector control, Matlab simulation program, with simulink and s functions, with the M-language programming. As a simulation of the power industry)

说明：  主元分析方法（PCA）是一种基于多元统计分析的数据降维方法, 它利用过程变量间的相关关系, 建立正常工况下的主元模型, 通过检验新的数据样本相对于主元模型的背离程度, 从而发现异常和故障。 (Principal Component Analysis (PCA) is based on multivariate statistical analysis of the data reduction method, which uses the correlation between process variables and establish the normal condition of the main element model, by testing samples of the new data relative to the principal component model departure from, and thus abnormal and failure.)

计算曲面换能器空间各点随时间变化的声场强度，采用的是时间差分法。精度高。(Transducer surface computing space changes over time, each point field intensity, using the time difference. High accuracy.)

说明：  一本关于卡尔曼滤波器的英文文章的翻译版本，介绍的很详细具体，而且是翻译版本，读起来很方便。(A Kalman filter on the translation of the English version of the article, described a very detailed and specific, but also translation, easy read.)

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):

此压缩包是matlab数学建模工具箱，用于数学建模用的，其中包含了各种常用的数学建模算法，还有一些经典例子(This tarball matlab mathematical modeling toolbox, used for mathematical modeling competition, which contains a variety of commonly used mathematical modeling algorithm, there are some classic examples of)

MATLAB_SIMULINK通信系统建模与仿真分析(MATLAB_SIMULINK communications system modeling and simulation analysis)

以自动控制原理和汽车理论课程为理论基础，建立了汽车二自由度系统模型以及电动助力转向系统模型，并进行仿真。利用已经建好的车辆模型和转向系统模型，还可以实现与CarSim等车辆动力学软件实现联合仿真。(Based on the theory of automatic control and automobile theory, a vehicle two degree of freedom system model and an electric power steering system model are established and simulated. Using the built vehicle model and steering system model, it can also realize the joint simulation with CarSim and other vehicle dynamics software.)