Finally, the function modules in this digital pre-distortion hardware platform are debugged and relative results are organized.
最后，本课题对数字预失真硬件平台进行功能模块调试并分析整理调试结果。
For this purpose, a lot of linearization methods have been investigated including back-off, feed-forward, feedback, LINC and pre-distortion.
为此人们研究了许多功放的线性化方法如功率回退法、前馈法、负反馈法、LINC法和预失真法。
Some common linearization techniques, such as feedback, feed-forward and pre-distortion, have been introduced and predistortion has been especially described.
接着介绍了常用的功率放大器的线性化技术，例如预失真和前馈技术，重点介绍了预失真技术。
According to the theory of digital pre-distortion, the working theory and design methodology of this digital pre-distortion hardware platform are illustrated in detail.
针对数字预失真技术的原理，引出本文所研究的数字预失真硬件平台的工作原理以及设计思路。
Last we present two new pre-distortion, a pre-distortion using twice mixing operation and linearizer using anti-parallel Schottky diodes which are directly connected with pa.
最后研究了两种新型的预失真器：二次混频预失真器和直接级联反向并联肖特基二极管对预失真器，并对后者进行了一定的改进。
A pre-amp component, such as a band-pass filter (32), causes linear distortion.
放大器前的部件，诸如带通滤波器(32)，引起线性失真。
To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
为了补偿数字电视发射机的频谱畸变与相位失真，以得到最佳的VSB频谱特性，可以在调制器中加入预均衡网络对频谱进行预畸变。
Geometric correction, is to remove the geometric distortion of remote sensing images, is an important pre-processing in the application of remote sensing image.
几何校正，就是清除遥感图像中的几何变形，是遥感影像应用的一项重要的前期处理工作。
This paper discusses the principle of the pre - distortion linearization technology of polynomial form, and introduces the characteristics and development foreground of this technology.
对一种多项式形式的预失真线性化技术的组成原理做了较为详尽的论述，并介绍了该技术的特点、应用及发展前景。
In image pre-processing, it introduces two steps of image pre-processing that is image distortion rectification and image noise restraint.
在图像预处理中，介绍了图像预处理中的两个步骤，即图像的几何校正和噪声点的抑制。
After the pre-processing, the effects of noises and distortion in the special image have been basically eliminated, then the radial information of the tube can be derived.
经过预处理之后的图像，已基本消除了噪声、畸变等的影响，为从中获取变锥度管的相关参数信息创造了条件。
After the pre-processing, the effects of noises and distortion in the special image have been basically eliminated, then the radial information of the tube can be derived.
经过预处理之后的图像，已基本消除了噪声、畸变等的影响，为从中获取变锥度管的相关参数信息创造了条件。
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