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RF Circuit design mfiles

前段时间在北大OJ平台上做的几个题目，主要用到几个知识点...(OJ platform some time ago at the university to do the subject ...)

语音回声消除的频率空间算法，空间传递函数自己模拟(echo cancellation frequency domain algorithm)

大学生数学建模的书籍以及训练习题，和答案，应该对参赛的选手有一定的帮助。(Mathematical modeling of books and training exercises, and answers for participating players should have some help.)

This matlab program compares the results of different window design methods for finite impulse response filters (FIRs): the rectangular window, Blackman window, Bartlett window, Hamming window and the Hanning window.

说明：  mit的matlab教程，简单实用，都工科大学生有借鉴作用(mit of matlab tutorials, simple and practical, all engineering students have a reference)

Turbo Code simulator

随着新的数学工具小波分析的实用化为基于NN负荷预测模型性能的改善提供了理论依据对于电力系统负荷非线性时间序列的辨识在预测方法研究中应给予重视在本文所用的基于小波原理和NN融合的预测原理是具有强的非线性时间序列的辩能力由研究和仿真表明它能有效提高预测的精度(with new mathematical tools wavelet analysis based on NN into practical load forecasting model to improve the performance of the rationale On the basis for the power system load nonlinear time series forecasting methods in literacy research should give importance to the use of paper Based on wavelet theory and NN fusion principle is the forecast of strong nonlinear time series by the dialectical capacity of research and simulation shows it can effectively improve the accuracy of forecasts)

根据计盒维数原理编写了求一维曲线分形维数的matlab程序(According to the box counting dimension principle written for the one-dimensional curve fractal dimension of the matlab program)

详解MATLAB 数字信号处理[张德丰][程序源代码] 书<<MATLAB 数字信号处理[张德丰]>>全部采用了MATLAB语言编程实现，并结合实例对算法程序进行验证和分析。其中详细讲解了信号的分析基础、系统模型及数据采集分析、信号的变换、模拟滤波器、IIR滤波器设计、FIR滤波器、MATLAB的其他滤波器、随机信号及参数建模、信号在小波分析与处理中的应用等，绍MATLAB在数字信号中的具体应用。 数字信号处理的工程设计人员参考。 (MATLAB source code, from the book"Digital signal processing-using MATLAB" by the Zhang Defeng.)