Through a great deal of effort, this problem has been solved recently by linearization techniques . 通過大量的努力,最近人們利用線性化方法解決了這個問題。
Nonlinear analysis and linearization technique of the rf power amplifier 射頻功放的非線性分析與線性化技術(shù)
Theoretical analysis and model simulation of adef linearization technique for rf power amplifier unit 線性化技術(shù)的理論分析及模型仿真
Study on response computation of a vibration system with variable coefficient of sliding friction using equivalent linearization technique 非恒定滑動摩擦系數(shù)振動系統(tǒng)等效線性化計算方法研究
The results show that the linearization technique based on em can reduce calculation burden in searching for optimal scheme 計算結(jié)果表明,能量裕度線性差值方法使控制方案的非線性搜索過程在保證結(jié)果準確的前提下大大簡化。
Predistortion is a widely used linearization technique because of its unique advantage , and the research of predistorting linearizer is becoming the hot research field 預(yù)失真技術(shù)是一種廣泛使用的線性化技術(shù),基于預(yù)失真技術(shù)的線性化系統(tǒng)正逐步成為研究熱點。
In applications of feed - forward linearization technique , the overall amplifier efficiency is significant concerned . giving mathematical analysis and simulation results , the paper present two practical methods to optimize the efficiency of a feed - forward amplifier system 針對前饋線性化技術(shù)應(yīng)用中倍受關(guān)注的系統(tǒng)效率問題進行了數(shù)學推導(dǎo)和仿真,提出實踐中提高效率的兩種方法及其適用條件。
Since the envelope of modulated signal fluctuates , these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ) . so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci ) 但包絡(luò)變化的調(diào)制信號經(jīng)過非線性射頻功放后會產(chǎn)生交調(diào)分量,因此必須采用線性化技術(shù)來減少由此產(chǎn)生的鄰道干擾。
Feedforward is generally known as the best performing linearization technique for its advantages , such as broadband , stability , etc . this paper introduces the theories of power amplifier nonlinear characters and feedforward technique . according to the rf specifications in 3gpp for wcdma transmitter power amplifier , an adaptive feedforward amplifier system is completed including eda simulation , circuits layout and main mechanical structure design 本文根據(jù)3gpp對wcdma發(fā)射機功率放大器的射頻指標要求,在對功率放大器的非線性特性和前饋技術(shù)的特性進行詳細理論分析的基礎(chǔ)上,結(jié)合eda仿真工具,設(shè)計了基于自適應(yīng)前饋的功放系統(tǒng),并完成了系統(tǒng)的調(diào)試和測試。
The article firstly introduces the linearization techniques : predistortion technique and technique feedforward . it analyses the concept and causes of the nonlinear distortion , and consequently introduces the principle and implement of predistortion and feedforward , and puts forward the innovative project of self - adaptable predistortion and feedforward 分析研究了預(yù)失真技術(shù)和前饋技術(shù)的原理、性能及其實現(xiàn)方法,并在深入研究兩種技術(shù)的基礎(chǔ)上,提出了集合兩者優(yōu)點于一體的自適應(yīng)前饋預(yù)失真線性化系統(tǒng)方案。