neighbouring sample

In order to reduce switching losses and switching frequency,the technique of phase-shifted sampling SVPWM which is the combination of the technique of space vector PWM(SVPWM) and the technique of carrier phade-shifted SPWM(CPS-PWM) is adopted in this paper.

为了降低开关器件开关的频率和损耗,采用相移采样SVPWM技术并根据减小最大开关电流的原则,提出了根据负载电流的相位动态调整各个变流器单元注入的零序分量,使不开关区间尽可能接近负载电流最大的区间的方法以降低各开关器件的最大开关电流,减小组合变流器的开关损耗。

Recommends a principle and method of frequency selection range fixation in order to control the reliability of fuze action through the adoption of sampling discrimination in frequency modulated fuzes.

推荐一种利用采样鉴相技术在调频测距引信中进行选频定距、控制引信可靠作用的原理与方法。

The new method uses incoherent sampling,and adopts the window-added and interpolated measurements based on the standard fast discrete Fourier transform to reduce spectral leakage and to improve evaluation precision, and can reduce as greatly as possible the difficulties and cost in constructing the evaluation system.

提出了一种高速模数转换器频域特性评估新方法,即采用非相干采样方式,在标准快速离散傅里叶变换的基础上增加加窗和插值措施,从而显著减少了频谱泄漏,提高了评估精度,最大限度地降低了评估系统构建难度和成本。