linearity of amplifier 中文意思是什麼
linearity of amplifier
解釋
放大器線性；垂直線性-
Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system
測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。 -
In new system the error pa can also amplify the original signal, so the performance of whole amplifier system increases. since rf predistorters used in the new system, the linearity and power efficiency can be enhanced
該技術改變了誤差通路中的信號特性，使誤差放大器也輸出有用信號功率，提高了整個放大系統的性能。 -
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
在本課題中，兼顧了效率及線性度，採用自適應預失真前饋復合線性化系統來改善高功率放大器的線性度。 -
The high power amplifier will produce crosstalk in the process of transformation, so in order to increase the purpose of increasing the efficiency and accuracy in the transformation of information, the method of linearity is employed
摘要高功率放大器會對信號產生交調失真，為了提高信息傳遞的效率和準確性，需要對其進行線性化。 -
For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter
以wcdma為代表的第三代移動通信技術，為實現寬帶調制、多載波應用，同時減小鄰通道干擾以滿足通信系統的誤碼率要求，對基站發射機功放的線性指標要求苛刻。 -
An analogue measuring amplifier integrated into the cable supplies an output signal of 1. 6v, the linearity of the measuring unit is
連接在電纜中的模擬測量放大器提供了1 . 6v的信號輸出，測量單元的線性指標 -
In the linearity of amplifier, the predistortion and the feedforward are the most popular techniques which possess different characteristics
在功率放大器的線性化方法中，預失真和前債是最常用的手段。 -
In order to deal with the nonlinearity and hysteresis of piezoceramics, a precise power amplifier circuit with charge - feedback loop was developed. and an electromechanical model of piezoelectric actuator is presented to demonstrate that charge - feedback control is prominently effective to reduce hysteresis, creep and to improve linearity
本文針對壓電陶瓷存在非線性與滯后的問題，根據電荷反饋原理設計了精密功率放大電路和電荷反饋迴路;建立了壓電作動器的機電模型，證明了電荷反饋控制對于減小回滯現象、提高線性度有明顯的作用。 -
This subject aim at designing a linear power amplifer whose output power is 40w for 225 - 450mhz band. but it seems not easy to finish the task because of this power amplifier own unique requirements including high output power, broad working frequency band, high linearity, and flat gain. due to the complexity involved, theoretically several soltuions are derived in the final scheme such as broadband matching technology, power - retreat, power synthesize, automatic power control and negative feedback. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful
本課題的目標是研製一個輸出功率為40w的225 450mhz的線性功率放大器。由於該功放要求輸出功率大，工作頻帶寬，帶內增益波動小，線性度高，所以其終合設計難度大。鑒于這個原因，在理論設計上筆者採用了寬帶匹配、功率合成、功率回退、負反饋、自動功率控制等技術；在實踐中精心設計電路，並且配合eda軟體模擬，最終達到所要求的指標。 -
The full noise and linearity analysis of the low noise amplifier ( lna ) constructed by cascode structure with source degeneration and the optimization methods of the two mosfets in this structure according to the noise and linearity performance
I對共源共柵矚ascode ）源極去耦舊ourcedegeneration ）結構低噪放做了完整的噪聲和線性分析，得到該結構中兩個mosfet針對噪聲性能和線性性能的優化方法。
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