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matlab程序化回测平台 可以用于策略回测(matlab tradingstrat for backtest)

几个经典的matlab device例子，很好用，值得学习的。(matlab device)

This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.

Lecture MATLAB simulations, it is suitable for beginners

说明：  实现卡尔曼滤波，可以看出，滤波过程是以不断地“预测—修正”的递推方式进行计算，先进行预测值计算，再根据观测值得到的新信息和kalman 增益（加权项），对预测值进行修正。由滤波值可以得到预测，又由预测可以得到滤波，其滤波和预测相互作用，并不要求存储任何观测数据，可以进行实时处理。(Kalman filtering, can be seen, the filtering process is constantly &quot forecast- Fixed&quot recursive manner calculated to predict the value of the first, and then according to the new information should be observed and the kalman gain (weighted items), on predictive value of the amendment. Value can be predicted by the filter, but also can be filtered by the forecast, and its interaction filtering and prediction, does not require the storage of any observational data, real-time processing.)

tpc power control algorithm in single cell

基于 嵌 入式系 统 理 论和 容 错系 统 体系 结 构， 结 合故障 一 安 全电 路的 设计 理念， 给出 了 一 种 嵌 入式 二乘 二 取 二容 错计算 机 联锁系 统的 硬件 设计. 深 入阐 述了 系 统 硬件电 路的 设计理论依据和工 作原 理， 同 时 给出了 设计中 的 元 件选型. 通过功能 测试， 系 统设计符 合故障 一 安全的 设计原则， 理论 计 算 表明， 其可 靠 性、 安全 性 达 到 铁 路 信号系 统 要求(Based on the theory of embedded systems and fault-tolerant system architecture, combining design fail-safe circuitry, gives a socketed Take two squares two-in fault-tolerant computer interlocking system hardware design. Further expounded on system hardware circuit design theory and work Design principles for the principle, and gives the design of the component selection through functional testing, failure of a safety system designed to meet the theoretical Calculations show that the reliability, security, railway signaling system requirements to achieve)

all possible permutations of the numbers 1:n(all possible permutations of the numbers 1 : n)

Very effective Audio AGC

本源代码给出了一个完整的蜂窝移动通信系统的仿真程序实例,开发环境是matlab,希望可以从事此方面工作的人员提供一个借鉴.(Source code is given a complete cellular mobile communication system simulation program examples, the development environment is matlab, hope that we can engage in this work provide a reference.)