摘要： 首先分析了钢琴的基音检测要求和线性调频变换的性质,并将其用到基音检测中去,使检测的准确度、可靠性、抗干扰性、实时Z性、稳定性均达到了工厂的要求,大大降低了工人的劳动强度,提高了工厂的生产效率,使产品的质量更加稳定、可靠。

关键词: 基音检测, 线性调频变换, ZCZT

Abstract: Firstly the dissertation introduces the target of pitch detection of piano and analyses the character of linear frequency modulation complex Z transformation, then applies the transformation into detecting the pitch,which makes the precision, reliability, anti-jamming, real-timing and stability to meet the factory's request, reduces greatly the hardness of workers, and improves enormously the manufacture efficiency. ;;

中图分类号: 

• TP274