| 摘要: |
| 多载波通信系统中，发射机因为功率器件的非线性特性，会产生
多阶交调，影响发射信号频谱质量。介绍了一种大功率多载波发射机的新设计，该设计采用
运用快速初相搜索算法优化的信号产生、带AGC的上变频器和平衡式功率放大器。理论和实
践证明，该设计兼顾信号的线性度和整机效率，对交调分量、谐杂波等有较好抑制，能获得
较好的信号频谱和较高的效率。 |
| 关键词: 多载波通信 发射机 线性 平衡式放大器 初相搜索算法 |
| DOI： |
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| 基金项目: |
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| A new design of high power multi-carrier transmitter |
| ZHONG Shou-yong |
| () |
| Abstract: |
| In a multi-carrier communication system,because of the nonlinearity of power di
vices,the transmitter will produce multiple order intermodulation,and influence
the quality of the transmitting signal spectrum.This paper introduces a new desi
gn of high power and multi-carrier transmitter.The design uses signal generatio
n optimized by Initial Phase Searching Algorithm,up converter with AGC,and balan
ced power amplifier. It is proved from theoretical analysis and practice that th
e design gives consideration to both linearity of signal and overall efficiency,
and gets effective inhibition of the intermodulation components and harmonic wav
e,and obtaines good signal spectrum and high efficiency. |
| Key words: multi-carrier communication transmitter linear balanc
ed amplifier initial phase searching algorithm |
