给出了系统总体结构、模拟通道设计、倍频锁相电路、数据采集电路、各种电参数测量算法及系统软硬件抗干扰措施。
The system hardware structure, analog channels circuits, data acquisition circuits, measurement algorithms of electric parameters and anti-jamming methods are given.
介绍了利用DSP和MAX115构成的系统对光栅传感器的两路输出信号进行高速同步采集，以及对光栅信号实现200倍频的软件细分方法。
Measure of simultaneous-sampling two channel signals sent from grating sensor, and soft-subdividing of moiré fringes in 200 based on simple system composed of DSP and MAX115 were introduced.
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.
利用这一方法，可以以软件方式完成噪声倍频程分析的数字计权处理，并且能够实现系统误差修正。
Using this technique, digital weight and digital system error modification for noise octave analyzer can be realized by software.
本文首次对我国生长的铌酸钾晶体的光学倍频特性进行了系统的理论计算和实验研究。
This paper presents systematic theoretical calculations and the experimental investigations of the doubling frequency character of the crystal KN grown in China.
本论文的任务是设计并实现基于FPGA及数字倍频技术的集成保护中数据同步采集系统。
The thesis presents the design and realization of a data synchronous acquisition system in integrated protection based on FPGA and digital frequency multiplying technique.
针对电力系统谐波测量方法存在的问题，提出了一种基于锁相倍频采集方法。
Aiming at the existing problem in harmonics measurement of power system, the paper (presented) a collecting method based on frequency multiplication phase-locked.
本文给出由智能功率模块IPM构成的印制绕组电动机（以下简称印制电机）双极N倍频PWM可逆调速系统，它采用智能PID 进行闭环控制。
This paper gives a kind of Printed Motor driver, which uses technology of Intelligent PID, N times PWM and intelligent power module-IPM.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
分析了倍频移相扫描法的工作原理，介绍了用倍频移相扫描法构成的电光采样测量系统。
The electro optic sampling system constructed with the multiple frequency phase shift scanning method was introduced.
本文介绍了一种用一阶或二阶无静差系统来锁定、倍频和跟踪的新型环路。
The paper presents a new type of loop, which USES first-order or second-order steady-state zero-error systems for locking, frequency multiplication and tracking.
本文首次系统地分析了CO -OFDM系统中整数倍频偏的影响。
The influence of the integral frequency offset is comprehensively analyzed in COOFDM system.
为了提高编码器反馈信号的分辨率，本系统还进行信号四倍频处理技术研究，并设计了原理电路。
To raise the resolution capacity of the encoder feedback signal, this paper still study the technology of having signal frequency 4 times handled, and designs the principle circuit.
给出由智能功率模块IPM构成的印制绕组电动机(简称印制电机)双极N倍频pwm可逆调速系统，它采用智能PID进行闭环控制。
The printed motor driver, which USES technology of intelligent PID is given, Ntimes PWMand intelligent power module_IPM.
该分析揭示了电力系统产生超低频振荡和倍频振荡的可能性和条件。
It reveals the probability and conditions of extra-low frequency oscillation and double frequency oscillation in power systems.
测控系统软件部分包括测控平台的人机界面编写、转速倍频卡的单片机程序编写、电机的控制算法等。
The part of hardware include electromagnetic motor, PCI capture cards, industrial computer and the related electronics, the power supply circuit and so on.
该倍频器能够为毫米波电路系统应用提供优质的毫米波信号源。
This high order multiplier can provide high-quality millimeter-wave signal source.
该倍频器能够为毫米波电路系统应用提供优质的毫米波信号源。
This high order multiplier can provide high-quality millimeter-wave signal source.
应用推荐