Direct digital synthesis is a new signal synthesis technique developed very fast in recent years. introduce the principle of DDS, disscus the application and development trend of DDS in Moden Radar and ECM superficially.

• 直接数字合成技术是近年来迅速发展起来的一种新型的信号合成技术,介绍了DDS的原理,对其在现代新体制雷达和电子对抗领域中的应用及其发展前景进行了初步讨论。