Linear-Filters--4

projected BFGS with Armijo rule, simple linesearch

An electric wheelchair uses a motor with a torque constant of 1.1 Nm/A, powered from a 24 V battery, with an internal resistance of 0.25Ω. We are interested in designing a controller with 44 Nm continuous torque capability, both in driving and braking modes at all speeds, with the widest possible operating speed range, both forward and reverse direction using the given battery.

The local binary pattern (LBP) is a simple yet very efficient operator which labels the pixels of an image by thresholding the neighborhood of each pixel and considers the result as a binary number. Perhaps the most important property of the LBP operator in real-world applications is its invariance against monotonic gray level changes caused, for example, by illumination variations. Another equally important is its computational simplicity, which makes it possible to analyze images in challenging real-time settings. LBP is also very flexible: it can be easily adapted to different types of problems and used together with other image descriptors

采用matlab编写的常微分方程的数值解法，有算例，以及改进龙格库塔方法。(The numerical solution of ordinary differential equation by using Matlab prepared, with examples, and the improvement of the Runge Kutta method.)

AOA——toa角度估计算法仿真，基于MUSIC的(AOA-toa angle estimation algorithm simulation, based on MUSIC)

Welch法得到的功率谱估计。 设计滤波器对白噪声滤波后的功率谱。(Welch method of power spectrum estimation. Design filters with the noise power spectrum after filtering.)

一个关于LDA算法合格度分类的Matlab实例。(An LDA algorithm on Matlab examples.)

Regularization of a system dynamics matrix

研究表明超高斯分布更加贴近语音信号的实际分布，然而语音信号很难用单一的概率密度 函数准确描述，针对这一情况，提出了一种用超高斯混合模型对语音信号幅度谱建模的新方法，并推导了 基于此模型的幅度谱最小均方误差估的估计式。仿真结果表明：与传统的短时谱估计算法相比，该算法不 仅能够进一步提高增强语音的信噪比，而且可以有效减小增强语音的失真度，提高增强语音的主观感知 质量。 (Recent research indicates that the speech spectral amplitude distributions could be fairly described with super-Gaussian probability density function. However, the complexity of speech signal determines that the distribution statistics ofspeech signal could not be well described by single simple function. Thus a super-Gaussian mixture model for speech spectral amplitude is proposed, and with this model, a minimum mean-square error (MMSE) estimator for speech signals spectral amplitude is derived. The simulation results show that this algorithm based on Gaussian and super-Gaussian speech model could achieve better noise suppression and lower speech distortion as compared with the conventional short-time spectral amplitude estimation algorithm. )

OFDM 的全套程序， 包括调制， 解调， 误码， 眼图， 功率谱。。。(OFDM complete set of procedures, including modulation, demodulation, error, eye diagrams, power spectrum. . .)