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Parameter identification and load identification on basis of frequency-domain are all researched very well, while the error of truncation, which is brought by data conversion, can"t be avoided. So, how to avoid these errors and identify the structure"s modal-parameter and exterior-load accurately will be the key technique of this field in the future, and some research work shall be done in time-domain.

针对模态参数辨识、动态载荷识别的频域方法较为成熟，但频域法中数据变换带来的截断误差却无法避免的现状，着重对模态参数辨识，尤其是动态载荷识别的时域方法作了一定的探讨。

Firstly,the differential equation with parameters is given,at the same time,in order to let the truncation error of differential equation reach O(Δt~2+Δx~4) as high as possible,the method of undetermined coefficent is used to appropriately select the expression of these parameters.Secondly,the stability condition of the scheme derived is given by using the Fourier method of stability analysi...

首先给出了含参变量的差分方程，并用待定系数法适当地选取了这些参数的表示式，以使差分方程的截断误差阶尽可能高地达到了O(Δt2+Δx4)；其次用稳定性分析的Fourier方法给出了所得格式的稳定性条件；然后给出了确定差分格式中参数的两种方法，得到了一个稳定性条件为r/3的分支稳定的高精度显式差分格式；最后给出了数值例子，数值结果表明了本文格式较现有同类格式的优越性和理论分析的正确性。

At the same time we brought forward a simulation of the forward collision warning model with 29dof vehicle model developed by State Key Laboratory of Automobile Dynamic Simulation of JiLin University, simulation showed that the model realized the expecting request. 3、It is the membership function of evaluation index that caused flat effect of some certain index and also because of truncation error of computer that the model can not identify relative safety of safe points and unsafe points.

在对驾驶员最优预瞄加速度模型的研究过程中，发现原有模型模糊决策环节的四个评价指标中由于部分指标采用了分段函数作为隶属函数而导致评价指标的平台效应，进而影响到相对接近度指数出现平台效应，又由于计算机截断误差的存在，导致相对接近度指数无法分辨绝对安全点的相对安全性和绝对危险点的相对安全性。

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

摄动有限差分方法在微分方程的差分近似中，离散微商项的同时，也离散非微商项，把非微商项摄动展开成网格步长△x的幂级数，并通过提高差分格式相应修正微分方程误差阶的方法求出摄动幂级数系数，从而获得高精度差分格式。

The new equipment will reduce the error probability by seven times.

译：新设备的误差概率将降低6/7。

By using Markov process and based on S-O-R pattern, availability and error probability of monitor are researched.

8运用马尔可夫过程，基于S—O—R模式，探讨了监控人员的有效度及失误的概率。

The error probability of the equipment was reduced by 2.5 times through technical innovation.

通过技术革新该设备误差概率降低3/5。我要投稿投稿有什么好处？

Its error probability is derived and compared by simulations with the conventional and decorrelating detectors.

我们推导了这种线性检测器的误码率性能，并通过仿真将它与传统检测器以及解相关检测器进行比较。

By SLR(1) analyzer for example,the paper introduces the construction methods of error diagnosis and recovery mechanism .

文章以SLR(1)分析器为例介绍了2种错误诊断恢复机制的构造方法。

Frame is a set of redundant base,the data represented by frames have the strong error recovery and robustness.

框架是一组冗余的基，通过框架表示的数据具有很强的差错恢复性和鲁棒性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷