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Based on the extensive summarization of the existing studies, a series of studies including feature extraction and selection of target discrimination, the design of discriminator, and so on are done.

在全面系统地总结前人工作的基础上,对鉴别的特征提取、特征选择、鉴别器的设计等展开了系列的研究。

The FHS-SVM based on the structural risk minimization criterion can solve the small sample learning problem, which can get a good shallow buried target and clutter classification performance with only shallow buried target training samples to obtain the parameters of hypersphere. Furthermore, the factors of misclassification risk and bury environment diversity are combined into the discriminator study procedure using the fuzzy membership of training samples, which improve the practical value of the FHS-SVM in shallow buried target discrimination.

FHS-SVM基于结构风险最小原理,在有效解决小样本学习问题的同时,只需要浅埋目标训练样本就能优化超球面参数,获得较好的浅埋目标和杂波分类性能;并且利用训练样本的隶属度将误判风险和埋设环境多样性等因素融入鉴别器学习过程,提高了FHS-SVM浅埋目标鉴别算法的实用性。

In this work,based on the principle of microdoppler,the mathematical model between missile and decoy is constructed,and characteristics in microdoppler are analyzed through simulation,thus distinguishing the target from heavy decoys and the missile.It offers a new reassuring way to the discrimination of the real or false targets.Keywords : target recognition;warhead;decoy;microdoppler;micromotion

文中在对微动目标微多普勒分析的基础上,建立了导弹与诱饵的数学模型,采用短时傅里叶变换的方法对回波信号进行微多普勒特征提取,仿真分析了导弹与诱饵的微多普勒特征,通过研究其时频分布特点的差异成功的识别出了真假目标,从而为弹道导弹与重诱饵的识别提供了一个新的有效方法。

Target discrimination on...

的歧视作

In allusion to the characteristics of the information uncertainty during the sensor management process in fusion target recognition system, we proposed a sensor management method for target recognition based on discrimination.

针对融合目标识别系统传感器管理过程信息不确定性的特点,首次提出了一种基于分辨力的目标识别系统中的传感器管理方法。

Target discrimination is a key technique in missile defense system, and after analyzing the defense system configuration, an integrated target discrimination mathematical model based on recursive temporal-spatial data fusion is performed, which brings the expert knowledge, environmental information and measure information into the integrated discrimination flow.

摘要目标识别是导弹防御系统的支撑技术,本文参考导弹防御系统配置,建立了基于时空信息序贯融合的综合识别数学模型,将专家知识、环境信息以及测量信息共同纳入综合识别流程。

Considering the actual precision of homing system and characteristics of target countering torpedo, a thought about guiding is brought forward: target discrimination is focused on while the target at long distance and precise hit while the target at a short distance.

考虑到自导系统实际精度和目标对抗鱼雷的特点,提出了远距离重点在于目标识别,近距离在于精确命中的导引思想。

A new scheme of target discrimination in SAR images, consisted of frames, models and algorithms, is proposed. Under such a scheme, a global frame, combining orderly the algorithm based on feature extraction and that based on knowledge, is then proposed. Moreover, in the method of target discrimination based on feature extraction, a "loose-coupling" model is given. The existing features are chosen and three new features about the contrast are given under the "loose-coupling". Meanwhile, an algorithm of feature selection based on Genetic Algorithm is also modified to solve the problem that the existing algorithm can not evaluate the goodness-of-features comprehensively. The weighted quadratic distance discriminator is designed to improve the performance of target discrimination. Finally, a method based on the knowledge of target groups to remove clutter false alarms is also given.

提出了一种目标鉴别的新方案,该方案包括目标鉴别的框架、模型以及算法;提出了基于特征选取鉴别和基于编队提取鉴别"序贯"连接相结合的目标鉴别框架;在基于特征选取进行目标鉴别的方法中,提出了目标鉴别的"松耦合"模型;提出了"松耦合"模型下目标鉴别的特征提取方法,包括已有特征的筛选和3个新的对比度特征的提出;改进了一种基于GA的特征选择方法,克服了已有方法对特征优劣评价不全面的问题;设计了加权二次距离鉴别器,提高了鉴别的性能;研究了基于目标编队知识进行进一步杂波虚警剔除的方法。

Focused on different nose figures used in the s haped charge warhead and the target discrimination unit on side wall, the model was computed by CFD and tested by wind tunnel facilities.

针对带药型罩子弹药可能使用的头部外形,对子弹药简化模型进行了CFD计算和风洞测试。

When it comes to evading the trap set by sleeper cells, use of one's sense of judgement and discrimination can help, as without slight co-operation from the target's (If their target is a public place like a railway station or busstand or a super market, they tend to use menial labourers like watch men and peons as primary data sources, though they may not entirely depend on their information) side it will be very difficult for the operatives to gather information and set traps.

说到逃避设下的圈套轨枕细胞,利用自己的判断和歧视可以帮助,因为没有略有合作的目标的(如果他们的目标是公共场所如地铁站或busstand或超市,他们往往喜欢使用卑贱劳动者观赏男子和peons作为主要数据来源,但他们可能不完全取决于他们的资料)方面,将是非常困难的的人员收集资料和设下陷阱。

推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。