如可以无限细化的FFT - FT方法，二次FFT以及把倍频程应用到声压级测量中，使PDM2000系统更完善。
For example, FFT-FT, two times FFT and octave using in sound measure. All this improvement makes PDM2000 system more perfect.
二是采用带干扰的线性模型，在线性二次型最优控制和线性系统状态观测器的基础上，设计了一种无速度测量非线性鲁棒控制律。
Using the linear model with disturbances, the other law is designed to be robust based on the linear quadratic optimal control and the state observer of linear system.
本文报道利用红外分光光度计和微机系统，采用二次测量技术，测量材料表面法向光谱发射率的基本原理和测试方法。
The experimental principle and the method to measure the normal spectral emittance of materials by infrared spectrophotometer and microcomputer system are presented.
本文介绍测量绝缘介质二次电子发射系数的双枪方法，并在动态系统中进行测量。
A two electron gun method and an arrangement whereby the secondary electron emission yield of dielectric materials can be measured are introduced.
文中详细介绍了在不使用二次仪表的前提下，基于虚拟仪器技术的大直径高精度测量系统的集成方法；
The high accuracy measurement system by multi-rolling method can be used to measure the diameter and roundness error of the large diameter.
电力系统对电压的测量主要采用电磁式电压互感器，需进行二次变压，才能将电网上的信号变为电子测量装置可用的信号。
The voltage transformer used in power system usually adopts electromagnetic configuration whose output signal can't be directly used by electronic apparatus without further transformation.
基于TMS32 0C5 4X的电力系统二次回路测量系统具有体积小、稳定性高等优点，电力领域应用广泛。
The system can test the secondary load of electric power based on TMS320C54X has has extensive applications in electric power etc.
基于TMS32 0C5 4X的电力系统二次回路测量系统具有体积小、稳定性高等优点，电力领域应用广泛。
The system can test the secondary load of electric power based on TMS320C54X has has extensive applications in electric power etc.
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