In this dissertation , the radiometric calibration of camera was performed , and researched the influence of non - uniformity of sensors response to calibration , calibration precision was improved by reducing the influence of random noise to calibration by processing the data of calibration by using wiener filtration . the radiometric calibration coefficients are determined by measuring the output data of camera and the temperature of blackbody 本文对红外相机进行辐射定标，研究了探测器响应的非均匀性对定标的影响，并通过采用wiener滤波技术对所采集的数据进行滤波处理，减小随机噪声对定标的影响，提高了定标的精度，最后通过测量黑体温度和相机输出数据完成红外相机辐射定标。
Disserted the principle of computer simulation of signal source of random moving multi - target , the methods of simulating two and three dimesion locuses of moving multi - target and simulating the interference of random noise . introduced the file format of the output parameters , the technique of data transformation and the method of software realization 论述了机动多目标计算机仿真信号源的原理,模拟二维及三维机动多目标运动轨迹的方法以及模拟机动多目标在运动时所受到的各种随机噪声干扰的方法，给出了输出参数的文件格式及数据转换技术，并介绍了软件的实现方法。
( 3 ) the effects of the random noise on the measured results , which are based on brightness temperature approach method and continuous measurement method , are evaluated . the experiment results demonstrate that the effect on brightness temperature approach method is uncertain and continuous measurement method can bear certain random noise 在某一温度点下的各通道理论测量值加入一定的随机噪声,试验结果表明:亮温逼近法受随机噪声的影响是不确定的,而连续测量法可以承受一定的随机噪声影响。
When the parameters of a tagaki - sugeno ( t - s ) fuzzy system are perturbed with random noise , the system turns to be a stochastic t - s system . essentially , it is a nonlinear stochastic differential system . the second part of the dissertation focuses on the stability analysis and control of the stochastic t - s systems 设控制对象是用tag山一sugeno ( t . s )模糊模型表示的非毕蜂琴攀{当模型参姆到统计特征已知的瞰嗓杆扰吟一就成为一个瞬娜咚模糊模型，本质上它是一个非线性随机微分系统。
From 100 meters to 2 meters , the restriction of angle of view is considered . during different phase , using different focus of image sensors to keep the image of feature points in the field of view ( fov ) . and then analyze the three kinds of random noise affecting ccd imaging quality 在目标器上配置多特征点的条件下，建立了运动参数的测量模型，并对此模型进行了误差分析，得到影响测量精度的误差因素；同时，为保证目标器的特征点在整个交会对接过程中不溢出视场，提出了在100m 2m的交会对接过程中对ccd视场角的约束条件。
Based on the h - h model , the thesis studies the reciprocity of random noise and signal in neuron , and the rule of the phenomenon of sr resulting from their coordinating effect . it is concluded that by the addition of certain level of noise , the response of the nonlinear system to a weak signal is enlarged . that is to say , noise strengthens the response of nonlinear system to signal 在系统模型的基础上，研究了随机噪声与信号在神经元中的相互作用，以及它们之间因协同效应而出现的随机共振现象的变化规律，得出结论，通过加入一定的噪声，弱信号通过非线性系统后输出放大，噪声增强了非线性系统的信号输出。
Based on the principle of the ultrasonic cross - correlation flowmeter , the key factor of the development of cross - correlation flowmeter , namely the design of cross - correlator , is analyzed in the paper . digital signal processing is introduced to design the flowmeter , the cross - correlation operation of random noise signal is dealt with inside the frequency field , and the digital cross - correlator is designed 本文从超声相关流量计的工作原理出发，分析了超声相关流量计研制的关键因素，即相关器的设计，并将数字信号处理技术引入了超声相关流量计的设计，在频域内对流动随机噪声信号进行相关处理，构造了数字相关器。
The research in this article shows that using different feature for multi classifiers to recognize character can efficiently improve the robust and recognition rate of the recognition system compared with the single classifer . the method mentioned in the article has a certain reference value for the design of common the vehicles " license plates recognition system with random noise 本文研究表明：采用多特征输入的综合集成网络分类器与单一分类器相比，可以有效地提高系统的抗干扰性和识别率，同时本文的综合集成识别方法对一般带有噪声干扰的车牌字符识别系统的设计有一定的参考、借鉴价值。
According to these accomplishments , several techniques are expounded emphatically in this paper , including 3d refraction statics , coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ) , 3d prestack multiple domain random noise attenuation , multiples attenuation , nmo of unsymmetrical hyperbola , dynamic replacement of wave equation , surface - inconsistent residual static , super bin stacking , poststack depth migration and prestack depth migration . all the techniques have been applied in seismic processing of 2d , 3d and wide - line profiling and obtained good results 本文根据项目组研究成果，重点闸述了三维折射波静校正技术，叠前波场分离相干噪音压制方法(叠前fx去噪) ，叠前三维多域随机噪音衰减技术，多次波衰减技术，非对称双曲线动校正技术，波动方程动态替换技术，非地表一致性的剩余时差静校正技术，超面元迭加处理技术，叠后深度偏移处理，叠前深度偏移处理等。
To sum up , tested and validated by data sets of shenzhou iv unmanned spacecraft and precise orbit ephemeris , the algorithms presented in the thesis can improve orbit accuracy and reduce random noise considerablely . derived conclusions have important value for reference , and lay the firm technological foundation for future applications 总之，经过神舟四号飞船实测数据计算和精密星历检验，表明本文提出的各种定轨方法可以较好的提高定轨精度，减少随机噪声，所得出的结论对于实际应用具有重要的参考价值，并为将来的应用奠定了坚实的技术基础。
