The maximum likelihood estimation of such model is discussed,and an approximate solution is obtained with the steepest descent method.
文中讨论了这类模型参数的极大似然估计 ,并采用最陡下降法来求其近似解 ,模拟试验证实此算法是有效
According to this, the formula of the position and amplitude of highlight on smooth and rigid surface, where the monostatic and bistatic sonar in free field, is deduced by use of the steepest descent method.
在此基础上,利用最陡下降法推导出自由空间中光滑刚性表面在收发分(合)置时亮点位置和亮点幅值计算式。
At first, the hidden node parameters of RBF are obtained by the classical clustering method; then those parameters are studied again by the method of steepest descent.
在用传统聚类方法得到初步的RBF隐节点参数之后,提出再用最陡下降法进行误差反传学习,进一步校正隐节点参数。
The thermal equation and wave equation are solved by the methods of Hankel transform and steepest descent, and the general expression of displacement is obtained.
在二维情况下 ,忽略热扩散效应 ,利用汉克尔积分变换法和最陡下降法 ,求解热扩散方程和波动方程 ,得出了位移的解析表达式 。
The original integration path was deformed into the steepest descent path.
将半空间并矢格林函数的索末菲积分用角谱平面积分表示 ,将原始的索末菲积分路径变换至最陡下降路径 ,针对场源位于不同区域时的分支割线和支点分布做了讨论 ,给出了最陡下降路径方程和相应的积分公式。
A New LMS Algorithm of Adaptive Filters--Modified Steepest Descent Method;
自适应滤波器的一种新LMS算法——改进的最陡下降法
The land falls off here towards the river.
这里的地势朝河的方向陡降下去。
the houses were swept away in the torrent.
暴雨沿陡坡下降形成急流。
To descend from a steep height by this method.
绕绳下降用这种方法从陡峭的高处下来
A steep downward slope.
陡斜向下倾斜的陡坡
The Modified Steepest Descent Method──Best Point in Steepest Descent method
改进的最速下降法─最好点最速下降法
Study on A New Lightning-proof Method basing on the Limiting Maximum Steepness of the Lightning Current
基于降低雷电流最大陡度线路防雷新方法的研究
THE CONDITIONS OF START-UP MECHANISM OF THE HIGH AND STEEP ACCUMULATIONS IN THE HEAVY RAINFALL AROUND THE SOFT ROCK AREAS
软岩地区高陡斜坡堆积体在强降雨条件下的起动机制研究
Prices have reached rock-bottom.
物价已下降到最低点.
Production has been lagging behind recently.
最近,生产一直在下降。
Rushing or falling headlong.
陡斜地冲下或落下的
The ground falls away steeply at his point
地势在此处陡然下斜。
We climbed down an abrupt descent.
我们爬下陡峭的斜坡。
The reputation of the conjurer was rapidly sinking below zero.
魔术师的信誉一下子下降到最低点。
The Meathod of the Steepest Ascent and the Determination of Optimal Technical Operating Parameters
最陡坡法与最佳工艺操作参数的确定
But the most agonising song is the song of the coolies who bring the great bales from the junk up the steep steps to the town wall.
然而最令人难受的却是苦力的歌，他们背负着船上卸下的大包，沿着陡坡爬上城墙。
Production has fallen back in the last few weeks
最近几个星期产量下降了。
Descend to your minimum altitude if not broken contact pull up and go around.
下降到你的最低高度，如不能见，复飞。