查询词典 spectrum analysis

The analysis results showed that the rapid and accurate determination of alkene content in jet fuels can be achieved by using near infrared spectrum analysis.

分析结果表明，近红外光谱分析可实现对喷气燃料烯烃含量的快速准确测定。

Theoretical analysis of and experiments on the fundamentals, efficiency, cross-modulation, inter-modulation and spectrum analysis of multiple-frequency acousto-optic Bragg diffraction are made and its application in laser high-speed printer illustrated.

本文对多频声光布喇格衍射的原理、效率、交叉调制、互调制、频谱分析等进行理论分析和实验研究，并阐明其在激光高速印字机中的应用。

Application DFT Discrete Fourier Transform, right through MATLAB continuous signal spectrum analysis, in order to meet the theoretical analysis and practical needs.

应用离散傅里叶变换DFT，通过MATLAB实现对连续信号频谱分析，以满足理论分析和工程实际的需要。

CVI in this case is an example of the procedure, which are used for correlation analysis and spectrum analysis.

详细说明：本例是一个CVI实例程序，它用来进行相关性分析以及频谱分析。

To transmit the signal over bandlimited channels efficiently and demodulate it reliably, a new method applied to determining the optimum indexes of the system has been developed with the help of correlation analysis and spectrum analysis.

为了在有限带宽的信道中高效传输并可靠解调信号，我们研究出通过对信号进行相关分析和谱分析的方法确定两次调制系统的最佳调制指数。

Discrete spectrum analysis technique and the system of dynamic signal analysis.

离散频谱分析技术及动态信号分析系统。

Adopting the latest research result on dynamic signal discrete spectrum analysis and the idea of virtual instrument, a dynamic signal analysis virtual instrument software system is developed, which is based on windows and has good performance.

并采用动态信号离散频谱分析领域最新研究成果，基于虚拟仪器设计思想，研制新方法、实时性好、精度高的基于Windows2000的动态信号分析虚拟仪器软件系统。

Experiments and application situation on determination of dysprosium by fluorescence analysis and derivative spectrum analysis method are reviewed.

对近10a来的用荧光法和导数光谱法测定镝的研究及应用进行了综合报道。研究了在聚乙二醇2000 硫酸铵铝试剂双水相体系中，铝试剂作萃取剂，对镧、镨、镝的萃取行为。

In order to improve the inspection technologies of satellite interference, 5 kinds of technologies of satellite interference and integrated judgement-spectrum analysis, helix inspection, PID, S/N and signal vector were put forward. The automatic inspection system of interference of satellite TV has been built according to these inspected technologies and technology of network. The system adopts comparison of spectrum template, calibration of beaconing, mode identification, telemetering pick-up technology and improve the inspection technology of satellite interference. The alarm limits haw been defined through a lot of emulational tests, so that the system become feasible. The system has a good effect and makes up the blank of inspection technologies of interference in our country to some extent.

为了提高卫星干扰监测水平，提出了频谱监测、螺流监测、PID监测、S/N监测和信号矢量图监测等五种监测技术和干扰综合判断方法：根据这些技术手段和方法，并利用计算机网络技术，建立了卫星电视干扰信号自动监测系统；该系统利用网络化设计，采用频谱模板比对，卫星信标电平校准、信号模式识别、卫星遥测信号提取等技术，提高了卫星干扰监测的准确度和自动化程度；通过大最的仿真测试，设定告警门限，使系统的漏警率和误警率达到实用要求；该系统应用于干扰监测工作中，起到了很好的效果；在一定程度上弥补了国内通信干扰监测的空白。

This dissertation was reportage the research of neuronal potential signal at three administrative levels of digital quantitative EEG, frequency analysis and power spectrum analysis, evoked potential of.2ms intersample interval duration 100 ms analysis with MATLAB program processing, based on the neocortical dynamics of macroscopic-scale EEG measurements and stimulus-specific oscillatory responses of the brain The subjects were lain down comfortably in a sound controlled booth with dim lighting.

本论文在宏范围EEG测量的皮层动态脑理论与大脑刺激性质的振荡反应的基础上，用0.2 ms间隔取点时程为100ms高采样率分析头皮脑电位。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。