该方法采集管网每个端点的压力信号,并基于模式识别的原理对管网进行泄漏检测与定位。
This method collects the pressure data from each ends, and detects and locates leak of the pipeline based on pattern recognition principle.
针对天线阵c DMA系统,提出了一种基于新的待检用户信号波形估计的盲多用户检测方法。
A blind multiuser detection (MUD) method based on a new desired user 'signature waveform estimation method in antenna array CDMA systems is proposed.
提出了一种基于航天继电器微粒碰撞噪声检测(PIND)试验信号的多余物材料特征提起方法。
A feature extraction method of remnant material based on aerospace relay particle impact noise detection (PIND) experiment signal was presented.
提出了一种基于数字信号处理器的基波相位和频率校正检测方法,可用于电力系统中电压或电流基波分量同步信号的获取。
A novel fundamental frequency and initial phase detection method based on DSP is proposed, which can be used to get synchronous fundamental frequency voltage or current signals of power system.
基于声光技术与循环谱相关技术,提出了扩频信号的声光谱相关检测方法。
Based on AO technique and cyclic spectral correlation technique, the method of AO spectral correlation detection is proposed.
提出了基于高阶谱的减噪方法,能有效提高回波信号的信噪比,减弱检测噪声对于缺陷散射特征的影响,从而突出缺陷特征信息。
A method for reducing noise based on high-order spectra was presented by which the signal-to-noise ratio (SNR) could be improved significantly and the flaw characteristic information could stand out.
基于信号在不同尺度下小波变换系数模不同的变化特征,结合最优梯度估计算法提出了一种边缘检测方法。
Based on different properties of the coefficient modulus of the signal in different scale wavelet transform, conjunction the best estimate of gradient algorithm an edge detecting method is proposed.
为了准确客观地检测出爆裂噪声的存在,提出了基于噪声信号奇异性的光耦器件爆裂噪声检测方法。
In order to detect the presence of burst noise in optocoupler device accurately and objectively, a new method was put forward based on singularity of noise.
本文利用基于高阶累积量的盲信号分离方法,设计了相应算法,成功地从被噪声污染的信号中恢复源振动信号,从而可确保碰摩故障的检测和诊断能顺利进。
Blind separation of sources based on higher order cumulants is applied to the separation between vibration signal and noise, which is important to diagnosi.
针对相参雷达体制,提出了基于极化和相位编码的雷达信号相关检测方法。
The method of correlative detection of radar signal based on polarization coding and phase coding for the coherent radar is proposed in this paper.
本文提出一种基于子波变换的检测瞬时信号的方法。
Based on wavelet transform, a new method for detecting transient signals has been proposed.
基于多符号检测的DMPS K信号处理算法在改善系统检测性能方面是一条行之有效的方法。
DMPSK signal processing algorithm based on multiple-symbol detection used to be an effective way to prevent deterioration of the system detection properties.
分析了利用非周期随机共振进行基带信号检测的物理机制,提出了一种基于统计的信号恢复新方法。
The physical mechanism of signal processing based on the aperiodic stochastic resonance (ASR) system is analyzed, and a statistical approach for recovering the binary signal is proposed.
这种基于数字信号分析和时序建模分析的方法,非常适应于工程测试信号检测、分析仪器和系统的诊断。
This method is based on digital signal analysis and time series modeling analysis, and can be applied to detection of measurement signal in engineering, analysis instrument or system.
本文基于负压波法检测管道泄漏的基本原理,提出了利用卡尔曼滤波算法对压力信号波形进行处理获得压力波形特征点的方法。
On the basis of suction wave method to detect pipeline leakage, the theses present that Kalman Filter can be used to get the featured inflection point of pressure wave.
对基于小波变换的信号检测方法进行了深入的研究,在不同尺度上分析和处理信号的各种频率成份。
In the paper, the way of detection of signal based on wavelet transform is researched, it analyses and processes signal of the various frequency at different scales.
针对超声无损检测中超声信号受噪声污染、信噪比不高的情况,提出了一种新的基于改进阈值函数的小波域超声信号去噪方法。
Aimed at the ultrasonic signal polluted by noises, which is low in SNR, a method of the ultrasonic signal denoising in wavelet domain based on an improved threshold function was put forward.
为在压气机整机进入深度失速前检测到失速起始信号,提出了一种基于平均数值差分的短周期扰动检测方法。
To detect stall inception signal before the whole compressor running into deep rotating stall, a method based on averaged numerical difference is developed to detect short length scale disturbance.
本文阐述了高分辨率一维距离成像的原理,提出了一种基于目标距离像的目标信号检测和跟踪方法。
The principle of obtaining one dimensional high resolution range profiles (HRRP) of a target is introduced, and a method of target detection and tracking based on HRRP is presented.
基于微弱信号检测的方法,设计了应用AD8099实现的一种低噪声、高精度光电转换电路。
We designed a low-noise, high-precision I-V conversion circuit by use of AD8099 based on the method of weak signal testing.
针对海底石油管道超声检测信号的噪声消除问题,本文研究了基于小波分析的噪声消除方法。
Aimed at noise cancelling cut for ultrasonic inspecting signal of seabed oil pipeline flaw, a kind of noise cancellation method based on wavelet analysis is studied.
本文提出了一种基于脉冲噪声中信号检测的模糊检测器的设计方法。
A new kind of design method of fuzzy detector based on signal detection in pulse noise is presented in this paper.
针对振动噪声影响下的舷侧阵声纳的信号检测问题,提出了一种基于时域加窗的信号检测方法。
A signal detection method based on the time-windowing was proposed for improving the signal detection performance of flank sonar mainly affected by the vibration noise.
为了实时快速地检测电力系统中的基波,提出了一种基于开关电容滤波器(SCF)检测电网中基波信号的方法。
A simple fundamental current detecting approach using switched-capacitor filter (SCF) is proposed in order to detect timely fundamental signals in network.
对语音信号端点检测的主要方法,如基于短时能量的方法、基于HMM的方法、基于自相关相似距离的方法等进行了深入研究。
The main speech signal endpoint detection methods, such as short time energy based scheme, HMM based scheme, related alike scheme and so on are investigated deeply.
目前,利用混沌振子检测微弱信号的两种方法分别是:基于系统相轨迹变化的方法和基于系统特征指数的方法。
There are two kinds of methods in detection for weak signals based on chaos: one is based on phase transition of the chaotic system, the other is to use some characteristic exponent of the system.
定频干扰信号的自相关特性严重影响了基于多跳自相关方法的跳频信号检测性能。
Autocorrelation of frequency-fixed signals always greatly interferes the performance of the detection of frequency-hopping signals based on multi-hop autocorrelation theory.
介绍了相关检测技术的原理和优点,设计了基于相关检测技术的信号检测系统,并且详细介绍了信号检测电路的实现方法。
A signal detection system based on the correlation detection technique is designed. And the configuration of the detection circuit is illustrated in detail.
根据舰船轴频电场信号的特点,提出了基于小波变换的目标信号检测方法。
According to the characteristic of the shaft-rate electric field of a ship, this paper proposes a detection method for the target signal based on the wavelet transform.
根据舰船轴频电场信号的特点,提出了基于小波变换的目标信号检测方法。
According to the characteristic of the shaft-rate electric field of a ship, this paper proposes a detection method for the target signal based on the wavelet transform.
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