DDS杂散抑制技术的研究与应用

Research and application on spurious reduction technology of DDS

介绍了近年来DDS杂散抑制技术的发展,研究了相位抖动法、混合式频率合成技术和相位内插法的原理与应用.并采用混合式优化法设计出一种性能较优良的频率合成器,其频谱纯度较高并可实现数字扩频.

The development in spurious reduction technology of DDS in the recent years is introduced. The principle and application of phase-moving, admixture-frequency syntheses, inside-phase are studied. And based on the admixture-frequency syntheses, a kind of frequency synthesis is designed, which has better function-higer purity on frequency spectrum and is able to rapid spreads spectrum.