alex

设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.(Design a IIR digital low-pass filter, approaching a group of analog filters indicator parameters (pass-band cut-off frequency Wp = 2* pi* 2000rad/s, stop-band edge frequency Ws = 2* pi* 3000rad/s, pass-band ripple Rp = 3db, stop-band attenuation Rs = 15db, the sampling frequency f = 10000Hz) were used to change the impulse response method and bilinear transformation method for design, list and describe the transfer function of analog and digital filter amplitude-frequency and phase-frequency response curve. A filter was designed with the completion of the above-mentioned groups of a given signal filtering, to prove the effectiveness of filters and filter limit)

说明：  详细介绍了VC混合编程的内容，与MATLAB等的相互调用(Described in detail the content of VC Mixed Programming with MATLAB call each other, etc.)

用于生成FPGA中RAM所需要的初始化文件dds.mif,此文件生成的是余弦波形。(This document of .m can generate document of .mif to provide data for RAM of FPGA.)

Wavelet packet modulation

说明：  实现相空间重构时间延迟的确定，使用的是C-C方法。(Realization of phase space reconstruction time delay identification)

通信系统中的信号调制与解调技术，对信号采用8PAM的脉冲幅度调制进行仿真分析(Communication system signal modulation and demodulation techniques, using a pulse width modulated signal 8PAM of simulation analysis)

Evaluates the theoretical probability of error for a 2PAM system in AWGN channels under the Standard Gaussian Approximation

for fem matlab for solving all 2D and 3D problem

HV line simulation program

北京航空航天大学《惯性导航原理》第一次大作业源程序(Beijing University of Aeronautics and Astronautics inertial navigation principle " first great source operations)