Matrix-root-2

to caluculate the legendre polynomials

基于频带方差的语音端点检测，很有用的，大家自己好好看，不是太难(variance based on the frequency of speech endpoint detection, very useful, we all do well, not too difficult)

commmunication develop in 4g

展示了线性、DFE、MLSE均衡器的信噪比性能，并通过蒙特卡罗模拟信道估计结果确定。(This demo shows the BER performance of linear, decision feedback (DFE), and maximum likelihood sequence estimation (MLSE) equalizers when operating in a static channel with a deep null. The MLSE equalizer is invoked first with perfect channel knowledge, then with an imperfect, although straightforward, channel estimation algorithm. The BER results are determined through Monte Carlo simulation. The demo shows how to use these equalizers seamlessly across multiple blocks of data, where equalizer state must be maintained between data blocks. )

论述了BPSK、QPSK、16QAM、2FSK 调制和解调基本原理，以及各种调制方式的在AWGN 信道和平坦Raleigh 信道下的误码性能。同时介绍了OFDM 的调制解调原理。并使用MATLAB编写程序，对其进行了实验仿真。(It discusses the BPSK, QPSK, 16QAM, 2FSK basic principles of modulation and demodulation, and various modulation error performance in AWGN channel and flat Raleigh channel. Also introduces the principle of OFDM modulation and demodulation. Using MATLAB programming, simulation experiment was carried out.)

认知无线电 通信原理 产生qpsk程序 并画出图像(qpsk program)

系统分析课程设计。倒立摆的空间状态控制。自己设置参数，(Systems Analysis Course Design. Inverted pendulum control space state. Set up their own parameters,)

二阶锁相环仿真，输入频偏为阶跃信号时的仿真(pll simulation)

说明：  经典的fastica算法，实现盲源分离，速度较快且效果较好(The classic FastICA algorithm can achieve blind source separation with fast speed and good effect)

详细的介绍了有关HMM模型的基本思想，是一本很好的资料！(Detailed introduction of the HMM model of the basic idea is a very good information!)