DDFS优化算法在谐波信号发生器设计中的应用  

Application of Harmonic Signal Generator Design Based on Optimized DDFS

作　　者：李林[1] 时海涛[1] 

机构地区：[1]中国石油大学(华东)信息与控制工程学院,山东东营257061

出　　处：《实验室研究与探索》2011年第12期47-49,70,共4页Research and Exploration In Laboratory

基　　金：山东省自然科学基金项目(ZR2009FL027)

摘　　要：在分析了传统DDFS应用中存在的资源利用率不高,输出频率不够精准、缺陷的基础上,提出了一种基于改进直接数字频率合成(DDFS)技术的谐波信号发生器的设计与实现方法。该方法从频率精度的提高和内存容量的压缩两方面进行一些有益的探讨。实践证明,通过优化DDFS结构和引进新的算法,在不影响系统速度和可靠性的前提下有效地提高了频率精度和实现了内存压缩。After analyzing the defect of the inefficiency of resource utilization and the inaccuracy of the output frequency existing in the application of traditional DDFS, this paper presented a method of designing and implementing harmonic signal generator based on the improved Direct Digital Frequency Synthesizer （DDFS） technology. It probes into the enhancement of frequency accuracy and the compression of memory capacity. It is proved that, through the optimization of DDFS structure and the introduction of the new algorithm, the frequency accuracy and compression of memory capacity have been improved without affecting system speed and reliability.

关 键 词：优化算法 内存压缩 直接数字频率合成 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]