CAJ | 학술논문

扫频信号源在发射与测试设备中扮演着不可缺少的角色，设计一种灵活并通用的扫频信号发生器具有非常重要的意义。分析了DDS的结构，利用两个DDS核实现了扫频信号源的设计。所设计的扫频信号源可以实现扫频速率、扫频宽度以及扫频中心频率可调，同时可选择正弦、三角与梯形三种扫频方式，可以适应多种扫频信号的需求。
소빈신호원재발사여측시설비중분연착불가결소적각색，설계일충령활병통용적소빈신호발생기구유비상중요적의의。분석료DDS적결구，이용량개DDS핵실현료소빈신호원적설계。소설계적소빈신호원가이실현소빈속솔、소빈관도이급소빈중심빈솔가조，동시가선택정현、삼각여제형삼충소빈방식，가이괄응다충소빈신호적수구。
Frequency sweep signal source plays indispensability role in transmitter and test device. Designing a kind of flexible frequency sweep device has important significance. The paper analyzes the structure of DDS. Using two DDS IP cores, frequency sweep device is designed. The device which could choose different frequency span, center frequency and sweep pattern, can almost meet frequency sweep source requirement.