一个校正函数的补偿

本文利用畸变函数的偏导数对文献［１］中给出的校正函数进行补偿，使其具有更高的精度。     

酵母流加培养的参数检测与控制

在酵母流加培养过程中，因缺乏应用的传感器，不能在线检测菌体浓度等参数。本文把可测得且又与菌体生长密切相关的氧吸收率作为被控参数，用呼吸商判别代谢途径，采用预估校正算法控制基质的流加量。     

像差畸变及预校正映射

本文根据磁偏转场畸变的物理原因，分析构造畸变及校正的映射函授，并给出校正电路的运算公式及公式的精度分析。     

Directional Beamforming for High-Speed Railway Communications with Frequency Offset Precorrection

This paper considers a multi-antenna transmission strategy for high speed railway communica- tions. In order to achieve better performance than conven- tional space-frequency block coding schemes, we propose a directional beamforming strategy for the High-speed rail- way （HSR） communication by exploiting some characteris- tic of the railway system including predetermined moving tracks and real-time positioning information. Moreover, for alleviating the effect of Doppler shift due to the moving train, a frequency offset precorrection method is also incor- porated with direction beamforming. Theoretical Signal- to-noise ratio （SNR） gain of the proposed beamforming scheme over traditional HSR communication schemes is also derived for illustrating the performance enhancement. Numerical results verify the effectiveness of our proposed scheme even with some kind of imperfect position infor- mation available at the transmitter.     

带非线性预校正功能的偏振光位移传感器

本文提出了一种基于振光检测的直线位移传感器,它具有非线性预校正的功能。介绍了检测与结构原理,并给出了原理装置的实验结果。这种新型位移传感器具有光机电结合、结构简单、非接触传感等特点,通过在变换结构中引入非线性预校正的方法,使输出电量与被测位移量在理论上呈线性关系,不仅扩大了量程,简化了电路,而且在全程范围获得了均匀的灵敏度和准确度。