QPSK

争对移动声源采用波束形成进行语音增强，提出一种约束子带波束形成算法。其波束形成器基于一个软约束，其目的是要使波束指向特定的区域即声源方向。而其核心在于首先要进行声源定位，获得尽量准确的方位信息，然后构造软约束条件，用于波束形成。且在此过程中不断跟踪声源的移动情况。在构造的约束条件中，需要知道声源的二维信息，即与麦克风阵列的距离和方向角，“软”体现在对距离和方向角的确定都是在一定范围内的，有待进一步更正。(Between the mobile sound source using beamforming for speech enhancement, a constrained subband beamforming algorithm. Its beamformer based on a soft constraints, the aim is to make the beam point to a specific region that is the direction of the sound source. And its core is the first to sound source location, access to location information as accurately as possible, and then construct the conditions of soft constraints for beamforming. And in the process continuously tracking the movement of a sound source. Structure at the binding conditions, need to know the two-dimensional sound source information, that is, with the microphone array the distance and direction angle, the " soft" embodied in the distance and direction angle of the determination are within the scope must be further corrected .)

Farrow 滤波器设计经典文章，作者是：FM.Gardner，farrow滤波器设计的始祖，经典值得推荐！（两篇文章）(Farrow filter design classic article, the author is: FM.Gardner, farrow filter design ancestor, classic worth recommending! (Two articles))

卡尔曼滤波器工具箱，非常适合初学者学习卡尔曼滤波器，里面有比较详细地程序(Kalman Filter toolbox MATLAB)

基于TCP的利用线程实现的服务器端的接收消息功能。(This is a program based on TCP ，and realize the server receives function by multi-thread functions.)

matlab程序，包括QPSK,16QAM,64QAM等多种调制方式的调制解调(modulation and demodulation of QPSK,16QAM and 64QAM etc.)

AWGN信道中，如何用代码实现DCSK调制方法以及系统的误码性能的分析情况(AWGN channel, DCSK system error performance)

波速成型算法、麦克风阵列语音信号技术相关文档以及webrtc相关文档(Wave speed forming algorithm, microphone array voice signal technology related documents and webrtc related documents)

PSK write in C coding.

船载自动识别系统(AIS)技术资料，我在项目开发过程中搜集的，做AIS相关开发必备！(Ship-borne Automatic Identification System (AIS) technical information, I am in the project development process to collect, and to do related to the development of AIS must!)

104规约调试工具，模拟104主控站，方便104规约的理解(104 Statute of the debugging tools, analog 104 master station to facilitate the understanding of the Statute of 104)