频谱分析技术

本文的主要内容是提供一种基于DDS的频谱分析技术。

The main contents of this article provide a spectrum analysis based on DDS technology .

应用小波转换的三维频谱分析技术，对40只兔心电QRS波进行分析，观察其三维心电频谱的特征。

Electrocardiographic QRS complexes of 40 rabbits was analysed by three dimensional spectrum analysis based on wavelet transformation .

DTMF信号的高精度数字频谱分析技术

High Accuracy Digital Spectrum Analysis Technique of DTMF Signal

基于CORDIC算法的频谱分析技术研究

Study of Spectrum Analysis Based on CORDIC Algorithm

基于结构实验模态分析及频谱分析技术，针对国产MG牌吉它进行了结构固有振动特性、弹奏声频谱特性的研究。

Based on the experimental modal analysis ( EMA ) and spectrum analysis , the dynamic characteristics and sound spectrums of the MG guitar , made in China , are studied .

基于小波包频带分解技术提出了信号浮动阈值滤波算法，指出该方法相对于Fourier频谱分析技术，对非平稳信号消噪具有更好的效果。

The floating threshold filter technique based on the frequency band decomposition of the wavelet packet transformation , which is superior to the Fourier spectrum analyze method for non-stationary signal denoising , is presented .

采用快速傅立叶变换（FFT）频谱分析技术、比值校正方法和随机搜索算法，完成了检波器输出信号的计算机分析程序的设计、调试和实际应用研究。

The design and debugging and the research on practical application of the computer analysis program for the Geophone output signals were accomplished with the FFT spectrum analysis technology , the ratio spectrum correction and the random search algorithm .

方法对56例糖尿病患者及54例正常对照者进行了UAE测定，并应用24小时动态心电图心率变异性频谱分析技术测定了两组的心脏自主神经功能。

Methods The UAE was measured , and the cardiac autonomic function was tested by 24 hour electrocardiogram spectral analysis of heart rate variability in 56 diabetic patients and 54 normal controls .

方法应用24小时动态心率变异性（HRV）频谱分析技术，对46例糖尿病患者及31例正常对照者测定了HRV，并与尿白蛋白排泄率作相关分析。

Methods The urinary albumin excretion ( UAE ) was measured , and the cardiac autonomic function was detected using 24 hour ambulatory ECG spectral analysis of heart rate variability ( HRV ) in 46 patients with diabetes and 31 normal control subjects .

对CCD-CZT电路的利用，可以作为雷达多普勒处理中一种有效的频谱分析技术，并可用于其它信号处理领域。

CCD-CZT is a powerful spectral analysis technique . It can be used in radar Doppler signal processing and some other aspects .

目前随着频谱分析技术在铁路中的应用，人们发现当调制系数较小时的频移键控（FSK）信号（如UM71轨道电路信号）与调幅（AM）信号的频谱图非常相似，很难区分。

With the wide application of spectrum analysis techniques in railway , it is discovered that the spectrums of FSK signal and AM signal are very similar , and very difficult to be distinguished . A theoretical analysis is done to the spectrums of these two signals in this paper .

钻柱应力波频谱分析技术的应用

The Application of Analytical Technology for Drill String Stress Wave Spectral

采用频谱分析技术的多普勒超声波流量计的研究

Research of Ultrasonic Doppler Flowmeter with Spectrum Analysis Technique

机载合成孔径雷达图像频谱分析技术地质应用评价

Application of Optical Power Spectrum Analysis in Assessment Geologic Utility on SAR Image

频谱分析技术在煤体结构探测中的应用

Application of Spectrum Analysis Technology to Coal Structure Exploration

一种基于数字频谱分析技术的弹道分析系统

A ballistic analysis system based on digital spectrum analysis

频谱分析技术在沉积声学研究中的应用

Application of Frequency - Spectrum Analysis Technique to the Sediment - Acoustic Research

在这一假设条件下，可应用基于傅里叶变换的频谱分析技术来研究处理表面肌电信号。

Under this assumption spectral analysis based on the Fourier Transform may be applied .

适用于现场的非线性频谱分析技术

A Nonlinear Spectral Analyzing Method for Engineering Application

嵌入式音频采集和频谱分析技术

Embedded Audio Acquisition and Spectrum Analysis Technology

频谱分析技术在通信对抗中的应用

Application of Spectrum Analysis in Communication Antagonism

声光频谱分析技术研究

The Study of Acousto-Optic Spectrum Analysis

运用故障诊断和频谱分析技术，对透平压缩机组的振动故障进行了诊断。

The vibration faults of the turbine-compressor sets were diagnosed using the technologies of fault diagnosis and frequency spectrum .

综合利用超声波的回波检测技术、计算机技术以及频谱分析技术等对层积材的质量实现在线检测。

Comprehensive utilization of ultrasonic echo detection technology , computer technology and spectrum analysis technology laminated wood quality on-line detection .

论述了频谱分析技术在旋转机械状态监测中所发挥的作用和所取得的经济效益。

The play gave by spectrum analysis techine in status monitor of rotative machine , and the economic effect obtained by it are discussed .

频谱分析技术是进行重磁异常场分离操作的常用方法之一，但该类方法易模糊掉不同形态异常之间的界线特征。

Spectrum analysistechnique is a commonly used method in the separation of gravity and magnetic anomalies , but this kind of method usually blurs the edges of anomaly .

近20年来，超声成像设备在电脑超声成像技术，谐波成像技术，相干处理成像技术，多普勒频移成像技术，回波频谱分析技术等方面取得了重大进展。

In the past 20 years , the imaging technique of ultrasound imaging equipment has made much progress in harmonic imaging , coherent imaging , Doppler imaging and frequency spectra analysis .

结果表明这种全矢谱细化有很好的实时性、准确性，从而提高频谱分析技术在密集频谱领域中的应用性。

The results show that the zoom vector spectrum implemented by this method has high accuracy and good real-time performance , thereby improving the applicability of spectrum analysis technique in intensive spectrum environment .

基于数字频谱分析技术的新型测速雷达，采用频城测速方法来提取目标的速度信息，与传统的测速雷达相比，性能有了很大提高。

A new radar for velocity measurement based on digital spectrum analysis uses the method of velocity measurement in frequency domain and has better performance than the traditional radar based on velocity measurement in time domain .

采用频率负反馈接收和频谱分析技术，解决了速度模糊问题，并用周期平均法克服了随机显示弊端。

It solves the problem of speed ambiguity by employing the technique of frequency feedback reception and frequency spectrum ana - lysis , and overcomes the defects of random display by adopting the average period value .