nr

Arryindexing in matlab r2009

说明：  任务：设计一个4×2.5Gbit/s 长距离光纤传输系统，并利用OptiSystem 仿真验证。 要求： 1．采用波分复用技术，波长设置以100GHz 为间隔，频率分别为193.1THz、193.2THz、193.3THz、193.4THz，每个波长传输速率为2.5Gbit/s（NRZ），传输距离为300km。采用常规光纤，光纤损耗系数为0.25dB/km。 2．单通道光发送机最大输出功率为0dBm，光接收机的接收光功率不低于－26dBm，过载点为－10dBm。 3．可以采用EDFA 作为线路放大器，其中EDFA 的输入功率限制在－18～2dBm，最大输出功率20dBm，增益范围为13～25dB，噪声指数4.0dB。(Task: Design a 4 x 2.5 Gbit/s long-distance optical fiber transmission system, and use OptiSystem simulation to verify. Requirement: 1. Using wavelength division multiplexing technology, the wavelength is set at 100GHz intervals, with frequencies of 193.1 THz, 193.2 THz, 193.3 THz and 193.4 THz, respectively. The transmission rate of each wavelength is 2.5 Gbit/s (NRZ), and the transmission distance is 300 km. The loss coefficient of conventional optical fibers is 0.25dB/km. 2. The maximum output power of a single-channel optical transmitter is 0 dBm, and the receiving power of an optical receiver is not less than -26 dBm, and the overload point is -10 dBm. 3. EDFA can be used as line amplifier, where the input power of EDFA is limited to - 18-2dBm, the maximum output power is 20dBm, the gain range is 13-25dB, and the noise index is 4.0dB.)

低通滤波器，对数据进行平滑，也叫做最小二乘法，Savitzky-Golay算法(a particular type of low-pass filter, well-adapted for data smoothing, and termed variously Savitzky-Golay, least-squares, or DISPO (Digital Smoothing Polynomial) filters. Rather than having their properties defined in the Fourier domain and then translated to the time domain, Savitzky-Golay filters derive directly from a particular formulation of the data smoothing problem in the time domain)

过程工业蒸汽动力系统是过程工业的重要组成部分,它的安全、稳定运行是企业安全、稳定、长周期运行的基础。蒸汽动力系统的设计水平、运行和控制性能对过程工业的能量利用率和经济性具有重要影响,研究蒸汽动力 系统设计、运行、控制各层次的集成建模优化对于指导蒸汽动力系统全面优 化具有重要意义。 ( Industrial process steam power system is an important part of the process industry, it s safe and stable operation of the enterprise security, stability, long-term operation of the foundation. Steam power system level design, operation and control performance has a significant impact on energy efficiency and economy in the process industry, research steam power system design, operation and control of all levels of integrated modeling optimization guidance for full optimization of steam power system has an important significance)

matlab字鱼香处理数字图像处理 ，边缘检测源代码，数鱼香处理数字图像处(matlab)

the function which finds fault location

支持向量机的最小二乘法LS-SVM工具包(The method of least squares support vector machine LS-SVM Kit)

在matlab平台上编写的基于SIMP和OC法的拓扑优化程序(topology optimization based on SIPM and OC)

说明：  salam man hamid hastam in file matlab

使用MATLAB仿真软件实现维特比算法译码 降低误码率(MATLAB simulation software using the Viterbi algorithm decoding error rate reduction)