CAJ | 학술논문

针对传统频率合成技术结构复杂、成本高、体积大的缺点，采用SOPC片上系统的设计方法，实现了DDS数控信号源系统设计．该系统设计的DDS具有稳定度高、分辨率高、转换速度快、抗干扰能力强等特点．以NiosⅡ软处理器为控制核心，系统的集成度高，易于维护和更新．
침대전통빈솔합성기술결구복잡、성본고、체적대적결점，채용SOPC편상계통적설계방법，실현료DDS수공신호원계통설계．해계통설계적DDS구유은정도고、분변솔고、전환속도쾌、항간우능력강등특점．이NiosⅡ연처리기위공제핵심，계통적집성도고，역우유호화경신．
For the weakness of high technical complexity, high cost and bulkiness of the traditional fre quency synthesis method, a DDS numerical control signal generator has been implemented by applying the SOPC system on chip design methods. High stability, high resolution, fast high conversion rate and strong an tiinterference capability are the basic characteristics of the DDS system. As the control core, Nios Ⅱ softcore processor has a high integration of the system which makes it easy to preserve and update the system .