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多元线性回归模型的一般形式 参数估计（ OLS估计） 假设检验 预测 (The general form of the multiple linear regression model parameter estimation (OLS estimates) hypothesis testing prediction)

A Costas loop is a phase-locked loop used for carrier phase recovery from suppressed-carrier modulation signals, such as from double-sideband suppressed carrier signals. It was invented by John P. Costas at General Electric in the 1950s. Its invention was described as having had "a profound effect on modern digital communications".

This script will setup the nonlinear simulation (UAV_NL.mdl) and call trim and linearization routines. Select the desired aircraft here in this script, via the "UAV_config()" function call.

该程序采用harris角点检测，使用ncc进行初匹配，双向重复搜索后得到特征匹配点。(The program uses harris corner detection, using ncc conducted early match, after a two-way repeated search feature to get the matching point.)

这是连续混沌系统，计算李雅普罗夫指数的程序。不是离散系统的，里面有很多混沌的实例。(failed to translate)

BEKK 模型matlab程序函数 源代码 源代码(BEKK model using matlab)

its a buck converter

OFDM程序，很详细，也比较简单，适合初学者学习研究(OFDM procedures in great detail, but also relatively simple, suitable for beginners study)

Parameter Optimization of AC Rectangular Wave Outputs for Aluminum Cold Wire GTAW.docx

为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。(In order to improve communication systems, information transmission rate of UWB communications systems have been proposed, namely, Ultra-Wideband communication systems. In the UWB system, the signal bandwidth will generally be in the order of GHz, caused such a wide bandwidth of UWB system and the existing communications system spectrum overlap. In order to reduce the impact of the existing communication systems, UWB signal design needs to meet certain spectral mask. If a signal spectrum can basically meet the spectral mask (that is, in most of the provisions of band power is less than the maximum range), we can assume it as a UWB signal.)