摘要
在分析FFT频谱计算中两个主要误差能量泄露和栅栏效应的基础上,提出了用矩形窗和平顶窗谱窗函数联合进行幅度谱优化的方法,并在DSP开发平台上通过实例验证了算法的有效性.
On the basis of analyzing picket-fence effect error and spectrum energy leakage on FFT computation error, an algorithm is proposed, which uses two window functions to perform spectrum analysis. The one is a rectangular window function and the other is a window function that has a flat top in a frequency domain. Its validities are testified through experiments based on DSP.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第1期83-87,共5页
Journal of Inner Mongolia University：Natural Science Edition
