SCWCD_-_Mock_Exams

TKK Voice Source Analysis and Parametrisation Toolkit (Aparat) is a voice inverse filtering and parametrisation software developed at Helsinki University of Technology (TKK) Acoustics and Audio Signal Processing Laboratory, Espoo, Finland. It is especially useful in rapid inverse filtering and parametrisation of large amounts of pre-segmented vowels.

说明：  5、绘制散点图。 对发射和接收信号利用scatterplot函数可显示信号星座图的样子及噪声对信号造成的失真程度。在该图中，横轴代表了信号的同相分量而纵轴代表了正交分量。下面的代码还利用了 对接收信号利用modem.deqammod对象的demodulate方法进行解调。解调结果为包含0到15之间整数的列向量。 (5, draw a scatter plot. The transmitted and received signals can be displayed using a function of the degree of distortion scatterplot like and noise signals caused by the signal constellation of FIG. In this figure, the horizontal axis represents the in-phase component signal and the vertical axis represents the quadrature component. The following code is also used to demodulate the received signal using the method of demodulating modem.deqammod object. Demodulation result is an integer from 0 to 15 comprising a column vector.)

C-C方法求lorenz的延迟时间,还没试试，自己打开后改可以试试(C- C method for lorenz delay time)

Donoho经典阀值改进法进行小波去噪，matlab环境下编辑源代码程序(Donoho threshold improvement of classical wavelet denoising method, matlab source code editing environment procedures)

the graph of x=0.2*(1.2^n)

这是一个优化IIR滤波器的源码,能设计出8个极点8个零点的IIR优化滤波器(This is a source optimized IIR filter can be designed eight against eight pole optimization of IIR filter)

某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定n 口油井的位置,即它们的x 坐标（东西向）和y 坐标（南北向）,应如何确定主管道的最优位置, 即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置。(An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time to determine the optimal position in charge of Road.)

TSP问题遗传算法通用Matlab程序，里面有说明，很容易懂，很有效的代码(General Matlab genetic algorithm for TSP program, which has explained, it is easy to understand, very efficient code)

学习期间，跟着导师做的一个project，主要讲的是语音信号处理在双耳助听器中的应用。(During the study, along with instructors to do a project, mainly about the voice signal processing in binaural hearing aids in the application.)

空间谱估计，DOA到达角估计，MUSIC算法仿真以及延伸算法(Spatial spectrum estimation, DOA DOA estimation, MUSIC algorithm simulation and extended algorithm)