ECG

generating wave form

假设截获了一段短波数字通信的信号，要求解调出最终的信息，每组解调出来后，将10组信息组合起来，恢复最终的信源输出数据。 先验信息：两组数据文件，编号为1、2，每组I、Q两路存放，格式为“int16”，采样率为9600Sa/s，其中第一组为单径情况，第二组为多径情况。 参数符合MIL-STD-188-110A标准； 同步序列为syn=seq.dat，BPSK调制； 接收机频率稳定度高于1e-6。 文件中有效信息总长度为333.75s，其中同步头长为5/12s，每时隙1/6s，训练序列占10 ，在数据之前； 交织方式为全交织，矩阵交织，列为1000，在比特级进行； 纠错码码率为1/2； 调制方式为BPSK、QPSK和8PSK中的一种，映射方式为二进制，BPSK相位偏移为0，其余两种为 。 (Suppose intercepted signal for a period of short-wave digital communications requires final demodulated information after each demodulated, combining 10 group information, to restore the final output data source. Priori information: two sets of data file, numbered 1, 2, each I, Q two-way storage, the format is int16 , sampling rate 9600Sa/s, where the first group is a single path, the second group multipath situation. Parameters meet MIL-STD-188-110A standard Synchronization sequence syn = seq.dat, BPSK modulation The frequency stability of the receiver is higher than 1e-6. File payload total length of 333.75s, wherein the synchronization header length is 5/12s, each time slot 1/6s, accounting for 10 of the training sequence, before the data Interleaving for the whole interleaving matrix interleaving, as 1000, carried out at the bit level Error correction code rate of 1/2 The modulation scheme is BPSK, QPSK and 8PSK one, a binary mapping, the BPSK phase offset is 0, the )

kalman滤波器一个matlab程序，用于处理语音信号。(a kalman filter matlab program for the treatment of voice signal.)

说明：  通过信源编译码，理解信源编码的主要目的，理解香农第一定理,掌握信源编码的方法和手段(By source encoding and decoding, source code to understand the main purpose of the first theorem of Shannon to understand and master the methods and source code means)

线性与非线性光传输仿真。针对著名教材“Govind. P. Agrawal s text, "Nonlinear Fiber Optics”里的很多理论分析进行matlab仿真。(to simulate linear and nonlinear propagation in fiber. The examples reproduce many of the numerical results that are presented in Govind. P. Agrawal s text, "Nonlinear Fiber Optics)

介绍流形学习的一篇非常好的外文文献，适合初学者学习(A very good foreign literature describes manifold learning for beginners learning)

二维核磁共振最新资料，欢迎交流，共同进步！(Laboratory and Field Evaluation of an Inelastic Neutron Scattering and Capture Gamma Ray Spectrometry Tool)

说明：  kalman滤波，扩展的kalman滤波（EKF），unscented Kalman filter（UKF），基于EKF和UKF混合模型的IMM实现，以及配套的Rauch-Tung-Striebel和two-filter平滑工具，一个很好用的框架(kalman filtering, extended kalman filter (EKF), unscented Kalman filter (UKF), based on the EKF and UKF realize mixed-model IMM as well as ancillary Rauch-Tung-Striebel and two-filter smoothing tool, a very good framework to use)

ISAR成像 包络对齐采用相关法对齐，相位聚焦采用多普勒中心跟踪法 和秩估计法(ISAR imaging envelope alignment using correlation method align phase focusing using the Doppler centroid tracking method and rank estimation method)

ebook for learning c++