数字放大器——3G无线基站的助推器

Digital Amplifier —— Booster for 3G Wireless Base Station

为了构筑第三代无线网络,人们需要对现有基础设施进行彻底改造,包括网络的发射基站。配置在无线基站中的新型数字控制功率放大器能够改善频谱利用率和功率效率,从而提高系统容量。PMC-Sierra公司的数字控制功率放大器采用了数字校正信号处理器(DCSP)以及自适应控制处理器和补偿估值器(ACPCE),该放大器可改善无线基础设施的可靠性,同时降低系统成本、规模及复杂性。

To construct3G wireless network,it is re quired to make thorough reconstruction on the existed network infrastructure,including base sta tion of the network.The new digital-controlled power am pli fier equipped in the wire less base station can im prove the fre quency spectrum uti lization and power efficiency to in-crease system capacity.The digital -controlled power amplifier from PMC -Sierra Co.adopts Digital Correction Signal Processor(DCSP)and Adaptive Control Processor and Com pensation Estimator(ACPCE).This am plifier can improve the reliability of the wireless infrastructure.Meanwhile it can reduce system cost,scale and complexity.