design

1）设计Butterworth型音频抗混叠滤波器； 2）参数： 下通带频率300Hz；上通带频率3400Hz； 下阻带频率280Hz；上阻带频率3600Hz； 通带最大衰减0.3dB； 阻带最小衰减40dB； 3）采用一低通滤波器和一高通滤波器级联； 4）分别确定LPF和HPF的性能指标； 5）求出两滤波器的系统函数和频率响应，并画出其幅频特性曲线； 6）求整个滤波器的系统函数和频率响应，并画出其幅频特性曲线。(1) the design of Butterworth-type audio anti-aliasing filter 2) parameters: passband frequency of 300Hz on pass-band frequency 3400Hz under the stop-band frequency of 280Hz on stop-band frequency 3600Hz passband maximum attenuation of 0.3dB minimum stopband attenuation of 40dB 3) the use of a low-pass filter and a high-pass filter cascade 4) separately to determine the performance of LPF and HPF target 5) to derive two-filter system function and frequency response, and draw its increase frequency characteristic curve 6) for the entire filter system function and frequency response, and draw its amplitude-frequency characteristic curve.)

viterbi译码算法的vhdl程序，有注释和各个模块的详细说明。是一篇完整的硕士论文，有源码(viterbi decoding algorithm of VHDL procedures, has comments and a detailed description of each module. Is a complete master)

说明：  了解多模光纤传播模式,了解电场磁场分布，了解模式光斑(Understand the multimode fiber propagation mode, understand the electric field magnetic field distribution, and understand the pattern spot)

说明：  用MATLAB对VSB 的调制解调进行仿真模拟，包括时域，频域，功率谱，加噪。(MATLAB to VSB modulation demodulation simulation, including time domain, frequency domain, power spectrum, add noise.)

两发一收和一发一收空时分组码误码率仿真对比图(Two rounds of a close and Pitch-empty, block codes BER simulation comparison chart)

MIMO system...... it employs almouti code using STBC to achive diversity

对数字通信作简要介绍，有一定参考价值，适合通信相关开发人员(Digital Communication related)

Final Project Proposal: Design Smart Parking System Based on WSN Using Delay Efficient Distributed Data Aggregation Algorithm

ofdm系统中的em信道估计matlab仿真(em OFDM system channel estimation matlab simulation)

完整的qpsk通信系统，包括发送端，接收端，在不同的信道模型下的仿真：awgn，rayleigh。包括各种眼图，星座图，基带波形，载波波形。(Complete the qpsk communication system, including the sender, the receiver in a different channel model Simulation: awgn, and Rayleigh. Including a variety of eye diagram, constellation, waveform baseband carrier waveform.)