review

设计一个低通数字滤波器，满足如下设计指标： 通带截止频率：0.2pi，通带波动：1dB 阻带截止频率：0.3pi，阻带衰减：15dB 要求：分别采用巴特沃斯、切比雪夫Ⅰ型、切比雪夫Ⅱ型和椭圆滤波器原型进行设 计，比较各种设计的阶数、实际阻带衰减，分析实验结果 (Design a low pass digital filters that meet the following design specifications: passband cutoff frequency: 0.2pi, pass-band fluctuations: 1dB stopband cutoff frequency: 0.3pi, stop-band attenuation: 15dB requirements: respectively Butterworth, Chebyshev Ⅰ, Ⅱ and Chebyshev prototype elliptic filter design, comparing the order of the design, the actual stop-band attenuation, analysis of experimental results)

视频压缩感知系统的基追踪算法仿真，可以运行通(Video compress and sensing system that based on BP.)

QPSK在多径衰落和加性高斯白噪声下的性能仿真，对于通信方面比较有用！(QPSK simulation with Gray coding and simple Rayleigh multipath fading channel and AWGN added)

Lamb problem: The analytical solution of vertical point source. This is very important for synthetic modeling(Lamb problem : The analytical solution of vertical point sour ce. This is very important for synthetic modeli Vi)

aloha算法在matlab中的实现，有注释，能正确运行，适合写论文用。(aloha algorithm in matlab, there are notes that can run correctly, use appropriate writing papers)

粒子滤波重采样方法，目的在于克服粒子滤波计算过程的粒子贫化和粒子退化的问题(resampling method used in particle filter)

特征向量 主要在MATLAB下实现.用于图像的PCA之前的准备工作，最后实现图像的主观检索。(Eigenvector mainly in MATLAB to achieve. The PCA for image preparation work before, and finally realize the subjective image retrieval.)

自已做的直扩系统的simulink仿真，包括信号源的生成，捕获与跟踪，解扩解调全过程(To do their own DS systems simulink simulation, including the signal source of the generation, capture and track the entire process of despreading demodulation)

1D FDTD simulation between free space and dielectric medium with absorbing boundary conditions,calculating the fourier transform of electric field (1D FDTD simulation between free space and dielectric medium with absorbing boundary conditions, calculating the fourier transform of electric field)

solving odes with matlab