查询词典 signature

The main difference is to set up a direct debit in the UK you must fill in a form which is authorised by your signature.

主要差别是成立一个直接扣在英国你必须填写申请表格是你签字认可。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

论文在较系统的研究目标特征量提取方法和特征量所包含的物理意义的基础上，对极化SAR图像降斑、极化对比增强、极化SAR图像分类以及极化SAR图像中海上舰船目标检测等方面进行了研究，并提出了一些新的概念和方法，对实测数据的处理结果表明，这些新的概念和方法对于极化SAR信息处理是有效的，本文的主要创新成果包括以下方面： 1）针对基于预分类的MMSE极化降斑方法实现过程非常复杂的问题，提出了简化方案，并验证了方案的有效性； 2）扩展了极化相关系数的表示方法，这种扩展增强了极化相关系数对目标的区分效果；另外还提出了极化特征图量化参数，可以从量上表征不同目标间相同极化和交叉极化的回波功率差异和极化特征图形状差异； 3）定义了目标间的差异度参数，它不仅可以用于描述相干目标，还可以用于描述分布目标的差别程度。

One way to do this is to include the digest in a digital signature.

所以这又引入了数字签名的概念

It is generically known as a digest, digital signature, one-way encryption, hash or checksum algorithm.

它一般地作为一种摘要，数学签名，单向加密，哈希表或校验和算法。

Digital digest; digital signature; electronic payment; payment gateway

数字摘要；数字签名；电子支付；支付网关

In this article, the fundamental knowledge of cryptography are introduced first. The author introduces the message digest algorithm, digital signature and X.509 certificate which are the foundations of authentication in public-key systems.

本文首先介绍了密码学方面的基础知识，接着介绍了身份认证中的消息摘要算法和数字签名的原理以及X.509证书，这些是公钥加密体系中身份认证的基础。

Then how to realize network security of J2ME based on Bouncy Castle is discussed,including to encrypt the data which are transmitted to the server and to verify the client by using digest and digital signature .

简要介绍了Bouncy Castle J2ME加密包，并具体探讨了如何用Bouncy Castle API来实现J2ME的网络安全，包括加密传输的数据和使用摘要及数字签名对客户端进行验证。

Electronic authentication means a service that is based on encryption technology, electronic signature, digital certificate, digital digest and so on, which are to be used to identify the signatory and the credibility and integrity of the document.

从字面上理解，凡是能颁发认证证书的机构都可以称之为认证机构。但本文的认证机构具有特定的含义，它专指电子商务中对用户的电子签名颁发数字证书的机构，它已经成为开放性电子商务活动中不可缺少的信用服务机构。

Second, we design and implementation the tax-controlled system and whole security of data of the system. We integrate application the encrypted algorithms technology, digital signature, key managing and digital digest, etc. And combine such hardware equipment as CPU card and POS machine, has solved the systematic security wholly.

然后对税控系统的整体系统及整体安全性进行设计与实现，综合应用密码技术、数字签名、密钥管理和数字文摘等，结合CPU 卡和税控器等硬件设备，整体解决了税控系统的安全性。

Authentication ; message digest ; digital signature

身份认证；报文摘要；数字签名

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。