| 超宽带高速步进频率信号源的设计 |
| |
| 引用本文： | 王华,陆必应,周智敏.超宽带高速步进频率信号源的设计[J].华南农业大学学报(社会科学版),2010(2). |
| |
| 作者姓名： | 王华 陆必应 周智敏 |
| |
| 作者单位： | 国防科技大学电子科学与工程学院,长沙,410073? |
| |
| 基金项目： | 国家自然科学基金，国防科学技术大学科研计划项目? |
| |
| 摘 要： | 针对现有频率合成方法难以产生同时具备宽频带和高速频率跳变能力信号的问题,提出一种基于直接数字频率合成和直接频率合成技术的混合频率合成方案.介绍了其实现原理、设计方案以及测试结果,最终实现了带宽为1.5 GHz、跳频时间小于50 ns的高速步进频率信号源,该方案实现简单,性能优越.
|
| 关 键 词： | 超宽带 步进频率 直接数字频率合成 高速跳频 |
Design of a Ultra-wide Band Low Switching Time Stepped-frequency Signal Generator |
| |
| WANG Hu,LU Bi-ying,ZHOU Zhi-min.Design of a Ultra-wide Band Low Switching Time Stepped-frequency Signal Generator[J].Journal of South China Agricultural University:Social Science Edition,2010(2). |
| |
| Authors: | WANG Hu LU Bi-ying ZHOU Zhi-min |
| |
| Institution: | WANG Hua,LU Bi-ying,ZHOU Zhi-min(School of Electronic Science , Engineering,NUDT,Changsha 410073,China) |
| |
| Abstract: | A frequency synthesis concept based on direct digital synthesis(DDS)and direct synthesis(DS)technology is suggested,as it is difficult for the current frequency synthesis method to generate a wideband and high-speed frequency hopping signal.The basic principle,design method and test result are provided.A 1.5 GHz stepped-frequency signal generator is realized,with its frequency hopping interval less than 50 ns.It could be easily realized and the performance is good. |
| |
| Keywords: | ultra-wideband stepped-frequency DDS high-speed frequency fast hopping |
|
| 点击此处可从《华南农业大学学报(社会科学版)》浏览原始摘要信息 |
| 点击此处可从《华南农业大学学报(社会科学版)》下载免费的PDF全文 |
