第二是用增加超前相位补偿的方法减小动态误差。
Secondly, by using of advancer to decrease the dynamic error.
讨论了两种误差对NCO杂散的影响，介绍采用相位抖动技术以提高无杂散动态范围，给出了仿真结果和实例。
This paper introduces phase dither technique to improve specification of SFDR, and analyzes two error influencing SFDR. It also shows the simulation result and the practice example.
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