pudn2124356

全选主元消元法解方程组，通过测试，可以自己修改方程组(Select principal component elimination method solution of equations)

脉冲编码调制(PCM)实现 编程实现PCM技术的三个过程：采样、量化与编码。 采样：低通连续信号采样，以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理，绘出信号时、频图形；带通连续信号采样，以x=sin(20*t) m=x./t 为例说明带通采样定理，绘出信号时、频图形。 量化：均匀量化，以幅度 的正弦信号为例实现为64级电平的均匀量化；非均匀量化，输入A律PCM编码器的正弦信号 ，采样序列为 ，将其进行PCM编码，给出编码器的输出码组序列 编码：以上述信号为例，实现A律的13折线近似法及国际标准PCM对数A律量化编码。(Pulse code modulation (PCM) to achieve PCM technology programming three processes: sampling, quantization and coding. Sample: low-pass continuous signal sampling to x = sin (200* t) m = x./(200* t) m = m.* m an example low-pass sampling theorem, draw the signal, frequency graphics bandpass sampling continuous signals to x = sin (20* t) m = x./t an example bandpass sampling theorem, draw the signal, frequency graph. Quantization: uniform quantization, in order to realize the magnitude of sinusoidal signal as an example for the 64 level uniform quantization non-uniform quantization, input A law PCM encoder sine signal, the sampling sequence, to be PCM encoded, the encoder is given The output code sequence Code: A Case Study of the signal to achieve the 13 A line approximation law and international standards on the number of A law PCM coding quantization.)

this is image frequency transform

An item that has an integer label.

用matlab实现kalman滤波器condensation滤波器跟踪自由落体的小球(Using matlab to achieve condensation filter kalman filter tracking of free-falling ball)

。本指南主要考虑的是代码（格式）的正确性、清晰性与通用性。本指南的 目的在于帮助写出更可能正确、易于理解、更具有共享性与更利于维护的代码。(. The main consideration in this Guide is the code (format) the accuracy, clarity and versatility. The purpose of this guide is to help write more likely to correct, easy to understand, to share more and more conducive to maintaining the code.)

introduction of fisher

使用小波包变换分析信号的MATLAB程序(Simulation of a simple short-circuit voltage sag signal, find the modulus maxima of wavelet coefficients...)

对输入的语音信号运用短时能量函数进行去静音，然后把去掉静音帧之后的信号进行重组。(remove the mute of the speech signal (using short-term energy function), and then remove the signal mute frame after restructuring.)

大地电磁测深（MT）一维层状模型电阻率正演。计算不同频率的电阻率，反应电阻率随深度的变化。(Magnetotelluric sounding (MT) one-dimensional layered model of resistivity forward modeling. Calculate the resistivity of different frequencies, the reaction changes in resistivity with depth.)