count

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

学习matlab的好资料第二部分，再此共享下啦。参考参考(Good information to learn the second part of matlab, and then under the shared friends. Reference Reference)

matlab linear phase FIR four type amplitude

boost DC DC GOOD simulation

matlab学习资料 matlab自学资料 matlab

an a dedicated hyperterminal

LDPC编码的C语言实现。包括校验矩阵，生产矩阵的生成，编码，译码等。(LDPC coding in C language. Including the parity matrix, matrix production generation, encoding, decoding and the like.)

LabVIEW和MATLAB在水声信号处理中的应用 (LabVIEW and MATLAB in underwater acoustic signal processing applications)

关于雷电系统设计的资料，对设计雷电定位系统有参考价值(About lightning system design information on the design of lightning location system have reference value)

VC与MatlabSimulink混合编程的实现与研究(VC and MatlabSimulink HYBRID PROGRAMMING AND RESEARCH)