与头相关传递函数(Head—related Transfer Functions:HRTFs)的准确、有效建模对于空间听觉的分析研究以及虚拟听觉空间的生成起着关键的作用。本文通过应用新型的面向多目标参数优化的遗传算法(Genetic Algorithm:GA)进行了 HRTFs共用...与头相关传递函数(Head—related Transfer Functions:HRTFs)的准确、有效建模对于空间听觉的分析研究以及虚拟听觉空间的生成起着关键的作用。本文通过应用新型的面向多目标参数优化的遗传算法(Genetic Algorithm:GA)进行了 HRTFs共用声学极点的极零点模型(Common-Acoustical—Pole and Zero:CAPZ)逼近。实验结果表明,GA较改进的Prony设计方法获得了更优的效果。展开更多
A stable CMOS low drop-out regulator without an off-chip capacitor for system-on-chip application is presen- ted. By using an on-chip pole splitting technique and an on-chip pole-zero canceling technique, high stabili...A stable CMOS low drop-out regulator without an off-chip capacitor for system-on-chip application is presen- ted. By using an on-chip pole splitting technique and an on-chip pole-zero canceling technique, high stability is achieved without an off-chip capacitor. The chip was implemented in CSMC＇s 0.5μm CMOS technology and the die area is 600μm×480μm. The error of the output voltage due to line variation is less than -＋ 0.21% ,and the quiescent current is 39.8μA. The power supply rejection ratio at 100kHz is -33.9dB, and the output noise spectral densities at 100Hz and 100kHz are 1.65 and 0.89μV √Hz, respectively.展开更多
Abstract In this paper, we study the order of the growth and exponents of convergence of zeros and poles of meromorphic solutions of some linear and nonlinear difference equations which have admissible meromorphic sol...Abstract In this paper, we study the order of the growth and exponents of convergence of zeros and poles of meromorphic solutions of some linear and nonlinear difference equations which have admissible meromorphic solutions of finite order.展开更多
文摘与头相关传递函数(Head—related Transfer Functions:HRTFs)的准确、有效建模对于空间听觉的分析研究以及虚拟听觉空间的生成起着关键的作用。本文通过应用新型的面向多目标参数优化的遗传算法(Genetic Algorithm:GA)进行了 HRTFs共用声学极点的极零点模型(Common-Acoustical—Pole and Zero:CAPZ)逼近。实验结果表明,GA较改进的Prony设计方法获得了更优的效果。
文摘A stable CMOS low drop-out regulator without an off-chip capacitor for system-on-chip application is presen- ted. By using an on-chip pole splitting technique and an on-chip pole-zero canceling technique, high stability is achieved without an off-chip capacitor. The chip was implemented in CSMC＇s 0.5μm CMOS technology and the die area is 600μm×480μm. The error of the output voltage due to line variation is less than -＋ 0.21% ,and the quiescent current is 39.8μA. The power supply rejection ratio at 100kHz is -33.9dB, and the output noise spectral densities at 100Hz and 100kHz are 1.65 and 0.89μV √Hz, respectively.
基金supported by National Natural Science Foundation of China (Grant No. 10871076)
文摘Abstract In this paper, we study the order of the growth and exponents of convergence of zeros and poles of meromorphic solutions of some linear and nonlinear difference equations which have admissible meromorphic solutions of finite order.
