语音信号的带通滤波器防干扰

语音信号的数字化：放大及增益控制、反混叠滤波、采样，A/D变换及编码语音信号的用带通滤波器防干扰

包括校验矩阵的生成、编码器、bpsk调制解调、利用BP算法进行LDPC的译码

%卡尔曼滤波原理 % x = Ax + Bu + w  meaning the state vector x evolves during one time %                  step by premultiplying by the "state transition %                  matrix" A. There is optionally (if nonzero) an input %                  vector u which affects the state linearly, and this %                  linear effect on the state is represented by %                  premultiplying by the "input matrix" B. There is also %                  gaussian process noise w. % z = Hx + v       meaning the observation vector z is a linear function %                  of

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用高斯消去法解方程组 1、2*x1 - x2 + x3 = 1;    2、4*x1+2*x2+5*x3=4 ；    3、x1+2*x2 = 7

改代码为ransack算法的源码，希望对学习该算法的有所帮助

形态学分析 计算目标物周长及面积的代码

给定数表 xi 2.2 2.7 3.5

信号处理中matlab实现数字下变频,信号中心频率为30M,采样率为40M，经采样将其中频信号变为视频信号