A new temperature segmentation linear fitting method sieves the problem caused by the nonlinear mapping between the temperature data and the chroma . that is dividing the temperature into some sections from high to low . different temperature section uses different formula 提出了一种新的温度分段线性化拟合方法解决温度数据与色度的非线性映射问题，即将火焰温度由高向低分成几个温度段，不同的温度段使用不同的运算公式，从而提高了测量的精度，避免了过去方法中试图用一个标定试验的公式来求解跨度较大的整个温度场分布时所产生的误差。
According to the practical need , the paper put forward a new nonuniformity correction algorithm - adaptive linear subsection interpolation correction algorithm , which is the expansion of two - point correction algorithm . the approach is not only achieved the nonuniformity correction in large dynamic range , but also eliminated the effect of temperature excursion of detector responsibility on nonuniformit y correction 根据实际需要，提出了一种自适应滤波分段线性插值的非均匀性校正算法，它是两点校正算法的扩展，不仅具有较大的动态范围，而且可以消除由于探测器响应特性温漂现象对非均匀性校正的影响。
Abstract : a bandgap voltage reference is presented with a piecewise - linear compensating circuit in order to reduce the temperature coefficient . the basic principle is to divide the whole operating temperature range into some sub - ranges . at different temperature sub - ranges the bandgap reference can be compensated by different linear functions . since the temperature sub - range is much narrower than the whole range , the compensation error can be reduced significantly . theoretically , the precision can be improved unlimitedly if the sub - ranges are narrow enough . in the given example , with only three temperature sub - ranges , the temperature coefficient of a conventional bandgap reference drops from 1 . 5 10 - 5 / to 2 10 - 6 / over the - 40 to 120 temperature range 文摘:提出了一种采用分段线性补偿的方法来实现高精度带隙基准,其基本原理是将整个温度区间分为若干个子区间,在不同子区间上采用不同线性补偿函数达到最佳补偿.由于温度区间缩小,补偿误差也随之减小,从而在整个工作温度间上的补偿误差也缩小.理论上,只要温度子区间取得足够小,就可以达到任意精度.示例中将- 40 120的温度区间仅分为三个子区间,平均温度系数就从1 . 5 10 - 5 /减小到2 10 - 6 /
The mathematical model of diesel - generator set in the mechano - electronic transient process is proposed in this paper , the pulsation and delay of diesel torque are analyzed , the relation between diesel torque and diesel rotational speed together with injection pump rack bar displacement is described exactly . the motion law of diesel - generator set is revealed all - sidedly and nonlinear problem of diesel - generator set is settled by piecewise linearzation method 本文提出了柴油发电机组机电暂态过程的数学模型，分析了柴油机转矩的脉动和滞后，准确地描述了柴油机输出轴扭矩与柴油机转速和喷油泵齿杆位移之间的关系，全面揭示了柴油发电机组的运动规律，利用分段线性化的方法解决了柴油发电机组的非线性问题。
Secondly , the effort is made to develope new type of transition element for multi - scale fatigue damage simulaton of long - span structures for the transition between elements for the hot spot stress analysis and the structural element . the linear and piecewise linear interplotion function for displacement interplotion are used for the transition element formulation according to the displacement compatibility requirement between element interfaces 在综合已有的构造过渡单元模型关于位移插值形式的基础上，通过采用分段线性位移插值模式和线性位移插值方式，并在位移模式中引入非协调位移模式，强迫构造单元通过分片试验，构造了一种用于疏密网格单元连接过渡单元。
Here the theoretical model of vav system is set up for the first time . besides , the transfer function matrix of the 5 inputs and the 5 outputs is established by combining the theoretical analysis with the data analysis of experiment . then the non - linear mathematical model of the five loops is delt with in two method : in the first method , taylor progression is applied near the working point of the system in order to make the volume of change between the output and the input become similar to a linear relationship . in the second mothed , the non - linear mathematical model realize linear by means of being devided into sections . the study shows that both the motheds are effective in dealing with the non - linear issue in vav system 本文首次建立了变风量空调系统的机理模型，并通过采用机理分析和实验数据分析相结合的方法，建立了所研究的五输入、五输出的变风量空调系统的传递函数矩阵，并对这五个控制回路的被控对象的非线性数学模型，采用两种方法加以处理：第一种方法是在系统的工作点附近进行泰勒级数展开，使输出的变化量与输入的变化量之间呈现近似的线性关系；第二种方法是将非线性的数学模型进行分段线性化，即用分段线性化来逼近非线性化的模型。
A piece - wise constant system ( pwcs ) method and singular value decomposition method of observability matrix of a dynamic system is proposed . and the good effect is achieved for analyzing observability and its degree of strapdown inertial navigation systems in initial alignment stage . through the computer simulation for different maneuver trajectories of the carrier in initkil alignment stage , obtain some important results 本文对捷联式惯导系统动基座初始对准这种时变系统，研究和分析了pwcs (分段线性定常系统)方法来判断系统的可观测性，奇异值分解的分析方法判断系统各状态的可观测度，并通过大量的仿真实验，验证了这两种方法，得出了一些重要信息。
Mean mass reactivity parameter was proposed to evaluate combustion reactivity of semi - coke . integral method and linear regress in section method were adopted to calculate reaction progression and activity energy respectively . according to kinetic parameters calculated above , an equation of combustion rate was established to forecast combustion process of semi - coke 用积分法确定半焦燃烧反应级数，用分段线性回归法求取不同实验条件下的反应活化能和频率因子，并根据求得的动力学参数确定半焦燃烧的反应速度方程，以此来预测半焦的燃烧过程。
In section 2 , we study the fixed point , stable set and unstable set of this system . for given parameters a trapping region is found with the property that any interval of unstable set will be expand under the map , so we get the conclusion that the system has infinitely many homoclinic orbits . as a consequence of the previous conclusion , we discuss the attractor of the system 在本文中，我们讨论了一个分段线性模型，它是物理学中用来模拟r - l - diode电路行为的数学方程，通过研究，我们得到该系统的一些拓扑性质以及符号动力学中的一些结论，主要内容如下：在第二节中，我们对给定的参数值，通过数值计算研究了该系统的不动点，不动点附近的稳定集与不稳定集，发现该系统中存在一个捕捉区域：该区域中的不稳定流形总体上是扩张的。
In the part of detector , it mainly introduces the design of liquor tubes , heater , pressurize , and thermocouple ; in the part of controller , this design uses tms320lf2407 as the cpu . the design part mainly introduces controller circuit design which mainly contains data collection circuit , prepositive magnifying circuit , a / d convert circuit , failure self - diagnosis circuit , the tms320lf2407 interface circuit , temperature control circuit , display circuit , 4 ~ 20ma standard signal output circuit ; in the software part , it mainly introduces software chart of main program and partly linearization subprogram design 检测器部分重点介绍了导流管的设计、加热器的设计、密封技术的设计以及测温电路的设计;控制器部分以tms320lf2407为核心,重点介绍了控制器电路设计,主要包括数据选择电路、前置放大电路、 a / d转换电路、故障自诊断电路、 tms320lf2407接口电路、控温电路、显示电路、 4 20ma标准信号输出电路共八个部分;软件设计重点介绍了主程序软件设计及分段线性化子程序设计。
