文章通过分析研究，给出了可适用于任意三次曲线段拟合的优化算法。
This paper gives the algorithm which is optimized and suited to arbitrarily three curve.
以5线段拟合法建立了确定湍流大气中激光对数光强起伏频谱的无标度区间的方法。
A 5 line fitting method was established to determine the scaling region of the power spectrum of the log intensity of a laser beam in the turbulent atmosphere.
通过对离散点进行短线段拟合的基础上，再利用曲线拟合的最小二乘法对圆和直线进行二次拟合。
On the basis of short straight-line fitting, this dissertation USES the least-square method of curve matching to discern circle and straight line.
位场信号的径向平均对数振幅谱可以由多条斜率不同的直线段拟合，直线的斜率即为相应的等效层的深度。
The radially averaged log amplitude spectrum of potential field can be modeled by lines with different slopes, which are the depths of the corresponding equivalent source layers.
在主动式视觉传感器的焊缝跟踪系统中，作者提出了新的接缝图象处理和特征值提取的算法，详述了直线段的调整、线段拟合算法以及接缝特征值的获取。
In the vision system of the seam tracking, this paper puts forward new image process and seam identifying arithmetic, linear adjustment and fit arithmetic in detail.
然后由模板曲线和拟合曲线段的渐缩线特征搜索出拟合曲线段在模板曲线上的对应段，由此求得相应的地层特性参数。
And the corresponding curve segments are found from asymptotic features between template curves and approximate curves. The parameters are given from this curve segments.
对于道路边界表示问题，建立了一种道路模型，并提出了一种基于最优分段线段的道路边界拟合算法。
One road model is built for road boundary, and a optimal fitting with multiple line segment is proposed.
研究了多道地震信号的最佳估计以及因之而提出的反射波时距曲线段的拟合问题；
The optimal estimate problem of multichannel seismic signals is investigated, and then the fitting of reflection travel-time distance relationship segment is applied and discussed.
拟合结果证实了三种接头载荷寿命曲线在单对数坐标下为指数曲线段这一假设的正确性；
The fitted result proves that the hypothesis that load-life curve in single logarithm should be exponential curve is right.
拟合结果证实了三种接头载荷寿命曲线在单对数坐标下为指数曲线段这一假设的正确性；
The fitted result proves that the hypothesis that load-life curve in single logarithm should be exponential curve is right.
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