为了提高数学模型的模拟精度，本文采用广义卡尔曼滤波技术进行递推滤波估计。
In this paper an extended Kalman-filtering was used to improve the precision of the simulation of mathematical model.
数十年来，为了提高数学技能，学校尝试了一个又一个数学课程，放弃一个不起作用的课程，又转向某个据说更好的课程。
For decades, efforts to improve math skills have driven schools to embrace one math program after another, abandoning a program when it does not work and moving on to something purportedly better.
在硬件设计方面：为了提高灵敏度，通过数学推导设计传感器信号变换电路中的各个参数，并给出了各参数的求取公式。
As for hardware design, in signal converter, in order to improve sensitivity, the parameter of signal converter is gotten through math illation.
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