| 摘要: |
| 针对应用于复杂空间环境的宽带接收机的需求，提出了一种新颖的频率源设计方案
。采用锁相环（PLL）和倍频电路实现宽带频综，采用直接数字频率合成器（DDS）实现窄带
细步进频综。给出了频率源的详细设计思路、实现方法及可靠性设计的相关内容，实测
结果表明所设计的频率源各项指标均满足要求。 |
| 关键词: 宽带接收机 星载频率源 PLL DDS 可靠性设计 |
| DOI： |
|
| 基金项目: |
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| Design of a novel satellite-borne wideband frequency synthesizer |
| WANG Li-sheng |
| () |
| Abstract: |
| A novel frequency synthesizer is presented for the demand of wideband
receiver applied in the complex space environment.PLL(Phase-Locked Loop) a
nd frequency doubling circuits are used to achieve wideband frequency synthesize
r,and
DDS(Direct Digital Synthesis) is used to realize fine step hopping frequency syn
thesize
r. The design scheme,realization method and the reliability design are introdu
ced in detail.The test result shows the specification of the developed synthesiz
er meets the requirements. |
| Key words: wideband receiver satellite-borne frequency synthesizer PLL DDS reliability design |
《电讯技术》编辑部 