| PSM技术及其小信号失真分析 |
| |
| 引用本文： | 隆克平,罗松筠,黄香馥.PSM技术及其小信号失真分析[J].电子科技大学学报(社会科学版),1996(5). |
| |
| 作者姓名： | 隆克平 罗松筠 黄香馥 |
| |
| 作者单位： | 电子科技大学电子技术系 |
| |
| 基金项目： | 国家“八五”重点企业开发项目 |
| |
| 摘 要： | 介绍了一种短波单边带（ＳＳＢ）ＰＳＭ广播发射机中采用的新型高效、优质调制器——脉冲阶梯调制器（ＰＳＭ）,从理论上分析了ＰＳＭ的小信号失真,提出了ＰＤＭ补偿方法。并采用新型的通用可编程逻辑门阵列（ＧＡＬ）器件设计并制作了一套ＰＳＭ调制器系统。给出了实测方法和实测的失真度数据。实验结果表明,该设计方案是正确可行的
|
| 关 键 词： | 脉冲阶梯调制／调制器 开关放大器 PDM补偿 小信号失真 |
Technology of Pulse Step Modulator and Analysis of Quantization Error |
| |
| Long Keping,Luo Songjun,HuangXiangfu.Technology of Pulse Step Modulator and Analysis of Quantization Error[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1996(5). |
| |
| Authors: | Long Keping Luo Songjun HuangXiangfu |
| |
| Abstract: | In this paper,a newly developed modulator with high efficiency,good quality,employed in newly short wave SSB broadcasting transmitters,refferred to as Pulse Step Modulator (PSM) is presented.The operating principle,efficiency,quantization error and PDM compensating of the PSM are also analyzed.Based on these discussions,an approach for designing the PSM circuits is developed and the advanced "first on first off" control system is devised in the use of GAL. Furthermore,a broadboard of the PSM for experiment and demonstrations is built.The results show that the approach for designing the pulse modulator is correct and effective. |
| |
| Keywords: | pulse step modulator switch applifier PDM compensation quantization error |
| 本文献已被 CNKI 等数据库收录！ |
|
