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- Hilbert transform was an important tool that mades the plan feasible. 希爾伯特變換是該方案實現的一個重要工具。
- The reconstruction signals were demodulated with Hilbert transform, and envelope spectrum at each band was obtained. 利用希爾伯特變換解調分析各頻帶信號,得到對應頻帶信號的包絡譜;
- This method is based on two major parts: empirical mode decomposition (EMD) and Hilbert transform. HHT方法包括兩個主要步驟-EMD分解和Hilbert變換。
- Considering modulated amplitude of bearing signal, the Hilbert transform is adopted in signal processing. 考慮到滾動軸承信號幅值調製特點,在本方法中,對處理信號採用了希爾伯特變換技術,以進行解調。
- The algorithm is based on 2-D directional wavelet, which is implemented via Hilbert transform pairs. 該方法利用基於希爾伯特變換對的二維方向小波,這種小波變換具有平移不變性、方向檢測性好的特點。
- As an application, the boundedness of Hilbert transform on the weighted Hardy space is proved. 英文摘要: The molecular characterization of the weighted atomic Hardy spaceHp;q;sw is given.
- There are two types of end effects in the empirical mode decomposition method: in the spline interpolation and in the Hilbert transform. 經驗模態分解方法中,有兩種端點效應:在樣條插值中以及在希爾伯特變換中。
- Imaginary seismogram is obtained by Hilbert transform and three instantaneous information is obtained by complex seismic trace analysis method in this paper. 復地震道分析又稱三瞬分析,該分析方法可將反映地震信號局部變化情況的地震波的瞬時振幅、瞬時相位和瞬時頻率等信息分離開。
- This paper describes various methods of analog modulation( including DSB, SSB, AM and FM) based on Convolution Theorem and Hilbert Transform unitedly to simplify the theoretical analysis in the" communication principle" course. 本文基於信號處理概念中的卷積定理和希爾伯特變換統一地描述各種模擬調製方式(括DSB,SSB,AM,fm)原理,旨在簡化「通信基礎"課程中關於模擬調製理論的分析。
- Compared with traditional DEMON analysis, the result shows that modulated information of radiated noise of naval ships can be extracted more quickly through wavelet and Hilbert transform. 其結果表明;相對於傳統DEMON分析;利用小波以及希爾伯特變換可以更快更好地提取艦船輻射雜訊的調製信息.
- Furthermore, the experiment on visual-audio simultaneous stimulus was designed to acquire real data, and averaged ERP (event-related potential) data were utilized to get the synchronization index by means of Hilbert transform phase method. 進一步設計視聽覺腦功能區域同時認知的腦電實驗,應用希爾伯特方法對真實腦電數據的事件相關電位(ERP)進行同步性量化。
- It extracts the high frequency components related to spikes in EEG signal by EMD method. It detects the spikes by calculating the instantaneous amplitude of the high component with Hilbert transform. 這種方法將EMD分解與Hilbert變換相結合,自適應地提取原始EEG信號中包含棘波特徵的高頻分量。
- A quadrature filter pair is designed to analysis the dominant orientation and local orientation energy in registered images firstly, which consists of a steerable filter and its Hilbert transform. 即採用方向可調濾波器及其Hilbert變換組成的正交濾波器組,分析兩幅已配准源圖的主要方向及局部方向能量。
- The analytical signals are acquired by means of Hilbert transformation of the original signals,the enveloped signals are calculated from the analytical signals. 其中,故障信號的提取是一個關鍵問題。
- Discrete-Time Hilbert transformer (12) isolates the only the positive spectral peaks, thus yielding a VAC signal that affords greater control over zero crossings. 一離散時間希爾伯特變換器(12)僅分離正的頻譜峰值,由此產生一VAC信號,該信號對過零點提供良好的控制。
- This is the inverse of his earlier proposition. 這和他早些時候提的建議截然相反。
- A Digital Downconverter based on Hilbert Transform 基於希爾伯特變換的數字下變頻器
- Hilbert transform along parabola 沿拋物線的Hilbert變換
- high-order pseudo Hilbert transform 高階偽希爾伯特變換
- Firstly, tested signals are decomposed into number of intrinsic mode functions (IMFs) by using local wave method, and time-frequency spectrums of IMFs are acquired by means of Hilbert transformation. 首先使用局域波法將實測信號分解為多個基本模式分量,經過希爾伯特變換得到各分量的時頻譜;