LianXu_XiangDuiDingXiang

Non-Convex Optimization

autoregressive of conditional durations model

鲍威尔算法，最优化算法，研究生学习，大家相互交流(Powell algorithm, optimization algorithms, graduate study, we exchange)

This programe provides SER analysis of amplify and forward cooperative protocol using QPSK modulation. Results are compared with theoratical results for QPSK modulation with AWGN and Rayleigh fading channels

This MATLAB exercise designs and implements a pitch period detector based on detecting and tracking peaks in the autocorrelation of the LPC error signal during regions of voiced speech. The pitch detection procedure is called the SIFT (Simple Inverse Filtering Tracking) method. The SIFT pitch period detector uses a secondary autocorrelation peak in order to detect and correct pitch period detection errors due to effects such as pitch period doubling and related phenomena.

This program describes how kalman filter and extended kalman filter reduces error so that we get the better output

用于介绍预测控制及其matlab仿真的实现(The implementation of predictive control and the implementation of MATLAB simulation)

在TMS320C54x系统开发环境CCS（Code Composer Studio）下对FIR滤波器的DSP实现原理进行讨论。利用C语言设计相应的滤波器，通过实验仿真，从输入信号和输出信号的时域和频域曲线可看出在DSP上实现的FIR滤波器能完成预定的滤波任务。

通过对RSSI测距模型进行分析， 并提出一种针对室内环境的参数修正方案。 通过 自行研发的传感器节点，上进行验证分析，实验表明，采用环境参数修正方案后， 明显提高了测距的精度。(We studied andanalyzed RSSI—based distance estimated model, and provide aparameter calibration method which in specific to indoor environmental applications．Experience on our prototype node)

说明：  对图像进行三角剖分，对三角点云数据进行处理。以便更好的显示图像、。(The image triangulation, triangular point cloud data processing. In order to better display image.)