displacement

说明：  浮点数的定义及计算方法，可用于初级学习之用(floap contral)

社会计算，mkbcd算法，准确划分出每个社团(Social computing, mkbcd algorithm，Accurately divided each community)

Voice detection using zero crossing rate and STE

基于RSSI室内定位算法仿真，运用MATLAB平台实现定位算法(Simulation of indoor location algorithm based on RSSI)

阵列信号处理的理论和应用教材的附录代码，实用性很强，是学习波束形成和阵列信号处理初学者的必备资料(Theory and application materials Appendix array signal processing code, very practical, is to learn essential information beam forming and array signal processing for beginners)

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 )

利用Kronecker 模型产生瑞利衰落信道，并利用MATLAB仿真实现与理论值的比较！(Rayleigh channel simmulation using kronecker model.)

用途：三阶样条插值（一阶导数边界条件） 格式：m=maspline(x,y,dy0,dyn,xx), x为节点向量，y为数据， dy0,dyn为左右两端点的一阶导数如果xx缺省，则输出各节点的 的一阶导数值，，m为xx的三阶样条插值(Uses: third-order spline interpolation (first order derivative boundary condition) format: m = maspline (x, y, dy0, dyn, xx), x is the node vector, y for the data, dy0, dyn left and right ends of points a derivative, if xx default, then the output of each node of the of a first derivative values,, m for the third-order spline interpolation xx)

this program is implementation of TOPSIS algorithm

极性LMS自适应滤波器，实现信号的自适应滤波作用(Polarity LMS adaptive filter, adaptive filter to achieve the role of signal)