摘要
根据WCDMA无线直放站锁相环的特点,结合Σ-Δ调制小数分频锁相环噪声低、分辨率高、步进小的优点,给出了一种适用于WCDMA无线直放站的基于Σ-Δ调制小数分频锁相环,并采用ADS工具对系统进行了仿真。仿真证明了基于Σ-Δ调制小数分频的WCDMA无线直放站锁相环模型的正确性,对WCDMA无线直放站锁相环设计有一定的指导意义。
According to the characteristics of PLL for WCDMA wireless repeater and advantages of low noise,high resolution,small steps of Σ-Δ modulated fractional-N PLL,a Σ-Δ modulated fractional-based PLL for WCDMA wireless repeater is proposed,and the system is simulated by ADS.Simulation results show that WCDMA wireless repeater PLL model based on the Σ-Δ modulated fractional-N is correct,and it has some significance to the WCDMA wireless repeater PLL design.
出处
《电讯技术》
北大核心
2010年第11期110-113,共4页
Telecommunication Engineering
基金
国家自然科学基金资助项目(NF010103)
广西教育厅科研项目(200708MS005)
广西自然科学基金资助项目(0832245)~~
