alpha-beta

律u律pcm编码 若输入A律PCM编码器的正弦信号为x(t)=sin(1600πt),采样序列为x(n)=sin(0.2πn),n=0,1,2,…,10，将其进行PCM编码，求出编码器的输出码组序列y(n)。 要求：1) 直接采用A律扩展器函数求解上述问题。 2）使用13折线法近似A律PCM 求解上述问题。 3）计算量化误差。(Law a law pcm coding If the input A-law PCM encoder is sinusoidal signal x (t) = sin (1600πt), for the sample sequence x (n) = sin (0.2πn), n = 0,1,2, ..., 10, it will be PCM coding to obtain the coded output code group sequence y (n). Requirements: 1) directly A-law expander function to solve the above problems. 2) using a 13 fold line approximation A-law PCM to solve the above problems. 3) calculating the quantization error.)

求两个序列的互相关函数，或一个序列的自相关函数；并显示了不同功率噪声下的效果。(Sequences for the two cross-correlation function, or a sequence of auto-correlation function and display a different power under the effect of noise.)

擷取下來的指紋, 周邊環境雜訊太多, 可使用分割步驟, 先將又笑的指紋分割下來(Fingerprint capture down, too much noise surrounding environment, use separate steps, first laugh of the fingerprint split down)

this is sample source code for fingerprint verification for matlab

说明：  matlab中电气化铁路牵引网上的AT所模型。(matlab electrified railway traction in the model AT Internet.)

adaptive spectrum sensing using SNAR comparioson and relative doppler shift (effect) between primary and secondary user

典型连续信号和离散信号的时频分析，包括：单位冲激信号、单位阶跃信号、矩形脉冲信号、正弦信号、指数序列等等(Typical continuous signal and discrete signal frequency analysis, including: unit impulse signal, the unit step signal, rectangular pulse signal, sinusoidal signal, the index sequence, etc.)

图中加入文本根据坐标和角度加入文本图中加入文本根据坐标和角度加入文本(add text)

MIMO信道遍历容量程序，给定中断概率计算中断容量，改变天线数量仿真结果对比(MIMO channel ergodic capacity of the program, given interrupt probability calculation outage capacity, change the number of antenna simulation results)

s function of 7 dof manipulator