摘要
讨论了采用数字移相器实现移频的原理,并分别在理想情况下和有相位误差情况下对数字移相器移频的主要性能指标——杂散抑制比和载波抑制比进行了分析。
The principle of frequency shift using digital phase shifter is presented, and the main performance indicators of frequency shift of digital phase shifter-- miscellaneous frequency restraining ratio and carrier frequency restraining ratio-- are analyzed respectively under the ideal condition and one with error present.
出处
《电子科技》
2004年第7期50-52,57,共4页
Electronic Science and Technology
关键词
移频
数字移相器
指标分析
Frequency shift
digital phase shifter
standards analysis.
