DTC

IEEE经典文章，CDMA PN序列差分捕获技术，文章内容详细，对学习和从事直接序列扩频同步捕获CDMA系统设计人员有很大帮助，推荐(New differentially coherent detectors for acquisition of direct sequence spread-spectrum signals are ntroduced. These detectors are alternatives to the noncoherent detectors that have been considered almost exclusively in the past. The proposed detectors are suitable for commercial code-division multiple-access(CDMA) systems which operate with a relatively large noise fl oor and provide a surprisingly large signal-to-noise ratio (SNR) improvement over the noncoherentdetectors of approximately 5 dB.)

dijkstra计算最短路径，算法在优化、图像处理、网格处理等相关领域有非常广泛的应用，希望能借此机会了解其实质内容，并灵活应用其到所学领域中。(dijkstra calculate the shortest path algorithm optimization, image processing, mesh processing and other related fields have a very wide range of applications, hoping to take this opportunity to learn about its substance, and the flexibility to apply their learning to the field.)

用于一维周期性层状声子晶体带隙的程序，由两种材料构成(For one-dimensional periodic layered phononic crystal band gap of the program consists of two materials)

求解椭圆型，双曲型和抛物型偏微分方程的matlab代码(Solve the elliptic, hyperbolic and parabolic partial differential equations matlab code)

程序计算仿真偏馈抛物面天线的特性如远场方向图 波束宽度 增益 极化等等(Program simulation calculation of offset parabolic antenna characteristics such as far field pattern beamwidth gain polarization etc.)

灰色模型的背景值和求导过程的联合优化，效果非常不错(Joint optimization model and gray background value derivation process, the effect is very good)

伪随机码，运用语音发射，噪声为发射信号，音乐为噪声信号。(Pseudo-random code, the use of voice-launch, launch signal noise, music for the noise signal.)

三相电源的整流逆变，在某一时间点并网投入运行的一份仿真。(A simulation of three - phase power supply connected to the grid at a certain time.)

说明：  自己编写的有关计算过零率以及基音周期的函数(I have written the zero crossing rate and the calculation of a function of pitch period)

delay-and-sum beamforming for speech enhancement