求系统单位给定阶跃响应的性能指标（超调量，峰值时间，调整时间 .....），其中， y，t表示系统节约相应的函数值与其对应时间,函数返回的是阶跃响应的第一(正向)波峰值b1、 阶跃响应的第二(正向)波峰值b2,阶跃响应的超调量sigma,阶跃响应的衰减比n,阶跃响应的衰减率pusi 阶跃响应的衰减震荡周期T,阶跃响应的振荡频率f.-Demand system units for a given step response performance (overshoot, peak ti

time, the function returns the order Jump to respond to the first (positive) wave peak b1, step response of the second (positive) wave peak b2, step response overshoot sigma, step response of the attenuation ratio of n, the step response of the atte

OFDM is one of the best physical-layer candidates for cognitive radio (CR) systems, but rectangular pulse shaping gives rise to large spectrum sidelobes and interferes with the licensed user on the adjacent band. In this paper, an approach is

模拟退火算法解决旅行商问题，城市数量27，初始温度3000，温度衰减率0.95。 -Simulated annealing algorithm to solve the traveling salesman problem, 27 the number of cities, the initial temperature of 3000, the rate of temperature decay 0.95.

计算协方差提供了便利，特别是考虑了半衰期；同时提供了一些其他常用的计算工具，例如decayma ewma等移动平滑计算；(It is convenient to calculate covariance, especially considering half-life. Some other common computing tools, such as decayma ewma and other mobile smoothing calculations, are also provide