It uses amplitude predistorter to recompose amplifier am / am characteristic and then to inverse , and uses phase predistorter to recompose am / pm characteristic 该技术使用幅度预失真器拟合放大器的am / am特性并求逆,相位预失真器拟合am / pm特性。
Predistortion is a widely used linearization technique because of its unique advantage , and the research of predistorting linearizer is becoming the hot research field 预失真技术是一种广泛使用的线性化技术，基于预失真技术的线性化系统正逐步成为研究热点。
The basic idea behind opc is to intentionally and systematically distort the mask in such a way as to compensate for optical diffraction limit and process non - idealities 其基本思想是有目的、有系统地通过对掩模形状做预失真来补偿由光学系统的衍射和工艺的非线性引起的失真。
The fundamentals of lfm ( linear frequency modulation ) signals , waveform parameter design , system control , quality analysis and pre - distortion calibration are discussed in this paper 本文讨论了线性调频信号的基本理论，研究了信号参数设计、系统控制、性能分析与预失真校正。
We combined the predistortion and feed - forward technologies and added self - reaction control module to build a linear power amplifier system . and it has high efficiency and high linearization 本自适应预失真、前馈控制系统将射频和自动控制有机结合,达到了高效率、高线性度的目的。
A digital base band adaptive predistortion method to compensate nonlinear distortions introduced by a high - power amplifier ( hpa ) in orthogonal frequency division multiplexing ( ofdm ) system is proposed 摘要提出了一种用于正交频分复用( ofdm )系统中补偿由大功率放大器引起的非线性失真的基带自适应预失真方法。
In this paper , we considered both efficiency and linearization , and take the scheme of self - reaction control module plus predistortion and feed - forward technologies to improve the high power amplifier ’ s linearity 在本课题中,兼顾了效率及线性度,采用自适应预失真前馈复合线性化系统来改善高功率放大器的线性度。
3 . a rf pa linearziation system that combines rf predistorting technique and feedforward technique is present . contrasted with basic feedforward system , the main improvement of new system is the signal feature of error signal path 由于在主功放和误差功放前分别加上了射频预失真单元，因此提高了整个系统的线性度和功率效率。
Considering the nonlinear difference of the gain and phase characteristic in solid state power amplifier ( sspa ) , a parallel but imbalanced predistorting adjuster is used and the hardware cost can be reduced 考虑到固态功率放大器( sspa )幅度和相位非线性特性的差异，该系统采用幅度和相位不平衡调节的射频预失真结构，降低了硬件成本。
The simulation results show the cubic predistorting linearization system can achieve 46db third - order intermodulation distortion ( imd3 ) suppression . 2 . the indexing method of lut predistorting linearization system is studied in this dissertation 仿真研究表明由该三阶扰动器组成的模拟预失真系统能有效抑制的imd2分量，并可达到46db的三阶交调( imd3 )压缩性能。
