Transmitter_test

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.)

This code is used for extracting texture features in an image

该载波同步方案可应用于低信噪比和高动态同存的条件下 接收机设计中,通过对该方案进行MATLAB 仿真,结果表明了该方案能有效地解决了载波快速捕获与精确跟踪的 问题。(The carrier synchronization scheme can be applied with low SNR and high dynamic receiver design under the conditions of existence, through the program MATLAB simulation results show that the scheme can effectively solve the fast carrier capture and accurate tracking of the problem .)

说明：  matlab 的一本书的光盘，我们学校一直用这个，大家反映很好(matlab a book of CDs, our school has been using this, we reflect the very good)

Creates a sinewave in matlab. Can be used to creates waves to test filters

Interpolation routines in matlab

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

使用有限元法求解一维伯努利梁的位移和应力算例。(an example of sovlving Euler-Bernoulli beam problem with FEM)

系统辨识经典辨识方法，其中包括levy法，差分法，Hankel矩阵法；系统辨识的最小二乘方法，其中包括最小二乘一次算法，最小二乘递推算法(System identification classical identification methods, including the levy method, differential method, Hankel matrix system identification of the least squares method, including a least squares algorithm, recursive least squares algorithm)

容积卡尔曼滤波算法，无迹卡尔曼滤波算法, 容积-无迹卡尔曼(CKF filter algorithm,UKF filter algorithm)