signal waveform 中文意思是什麼
signal waveform
解釋
信號波形-
Waveform reproduction control for double - actuator electro - hydr aulic vibration test bed based on digital signal processor
的雙缸電液振動臺波形再現控制 -
Moreover in speech enhancement, especially in reducing the pulse noise, morphological algorithm has its unique advantage. particularly morphological filter may maintain the preferable accurate of the speech signal in speech waveform, and which produces little impairment to the formant of speech. so the spectrum structure of the speech is retained well, and the quality of the speech will not be reduced
特別是，在時域波形分析中，形態學濾波增強較小波去噪更好地保持語音信號的細節；在頻域分析中，形態學濾波對語音信號的基音頻率、頻譜斜率、共振峰等語音特徵的影響很小，因而能夠較好的保留語音信號的頻譜結構，使語音品質不致降低。 -
These conceptions might be used for interpreting " time - lag " of signal and leveled phenomena of waveform - signals that were produced on time - domain figures in application of guided wave to operate nondestructive test
這一概念，可以解釋運用導波進行無損檢測得到的時域分析圖中信號發生的「時滯」與波形拉平現象。 -
In the digital inverter, we adopt the technology of digital dynamic waveform correction, which can compensate the delay between control signal and output waveform, and ensure the accuracy of control. at the same time, the technology of digital dc component adjustment was introduced, by which we can exactly compensate the control signal, and realize adjusting dc component of output on the premise of output performance
在基於dsp的數字變換器平臺中，採用全數字波形校正技術，完全補償了控制信號延時、功率管開關延時以及死區時間對輸出spwm波形所產生的畸變，充分保障了變換器控制的準確性；採用數字直流分量調節技術，可以精確地對控制信號進行補償，在充分保證輸出性能的前提下，實現了輸出直流分量的調節。 -
This waveform library not only contains those typical radar signals like single - carrier frequency signal, encoded signal, lfm etc, but also include many hybrid modulated signals, like fsk / psk signal, fsk / ppm signal, psk / ppm signal, pseudo - random fsk / psk signal, etc. we use visual c + + 6. 0 to implement this software program, this makes it easy in control operation and provides a nice human - machine interactive interface
波形庫中既包含了傳統的雷達波形，如單載頻脈沖信號、 lfm 、編碼信號等，又包括了復合調制波形，如fsk / psk信號、 fsk / ppm信號、 psk / ppm信號、偽隨機fsk / psk信號等。採用vc編程實現，使其具有友好的人機界面和靈活的控制操作。 -
Abstract : with a view of time - varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex pump widely used in heavy machinery as an exa mple, on the waveform feature extraction which reflects the various conditions o f reciprocating machinery with nonlinear wavelet denoising analysis method
文摘:針對往復機械振動信號的非平穩時變特點，本文在簡述小波分析及非線性小波消噪理論的基礎上，以重型機械使用的三缸泵為例，研究了用非線性小波消噪方法提取往復機械狀態下的波形特性。 -
Divider, coaxial line, trigger, signal processing, data acquisition, acquisition control and waveform analysis software is included in the device. when the device operate in the system, overvoltage is transferred to coaxial line by the divider. if the overvoltage amplitude is higher than initialization value, data acqusition card start sampling. when sampling is over, computer save data to file. engineer can analyse parameter of waveform by appropriative software reading data from file
當裝置在線運行時，系統中出現的過電壓信號通過分壓器傳遞到同軸電纜，通過觸發電路判斷，如果大於預先設定的值則啟動採集卡的同時采樣，采樣結束后，計算機把數據存盤並以文件格式保存，管理人員隨時通過調用專用軟體調取文件進行各種參數分析。 -
The fault diagnosis system includes four parts : sampling and insulation of the synchronous signal, sampling of the voltage waveform of the rectifier, logic pre - processing and dft analysis, display and alarm circuit
故障診斷系統主要包括同步信號的取樣與隔離、整流電壓的采樣、邏輯預處理及dft分析，診斷顯示報警電路等四部分。 -
This dissertation is the expanding of the military project of ‘ 95 ’ advance research, a novel multi - modulation technique designing radar signal waveform is introduced on the links with the project of the national natural science fundation of china ( nsfc ), named " produce and process the multi - modulation signal of the sensor with strong detectability and identifiability ". based on the analysis of the equal - probability - distributing fsk / psk multi - modulation signal, we construct a new pseudo - random fsk / psk multi - modulation signal and we design and simulink on the computer the partly - matched processing signal of this signal. the purpose of the design is to construct a processing signal to combine with the pseudo - random fsk / psk multi - modulation signal, so that we could get a strong response of the target
本論文是『九五』軍事預研項目「低截獲概率雷達波形研究」的擴展與深入，同時結合國家自然科學基金項目「強探測強識別傳感器新型復合調制信號產生及處理」展開。在分析等概率分佈的fsk / psk復合調制信號的基礎上，構造了一種新的偽隨機fsk / psk復合調制信號及其非完全匹配處理的設計及模擬。設計的目的是能對偽隨機fsk / psk復合調制信號進行處理的處理信號，以期獲得對所探測目標信息的強探測。 -
The thesis firstly analyzes the signal form of frequency modulated interrupted continuous waveform ( fmicw ) in theory, studies the principles of detecting range and velocity for fmcw, and further discusses the essential processing methods of the fmicw signal form, including the range transform processing method based on the strict corresponding relation between time and frequency domain, the velocity doppler transform, the digital beam forming
本文首先從理論上分析了在高頻地波超視距雷達所用的線性調頻斷續波信號的形式，研究了fmcw雷達測距測速原理，並深入地探討了fmicw信號的基本處理方法以及具體的演算法，主要包括距離變換中採用的時間波門相關處理方法，速度多普勒變換，數字波束形成。 -
Signal and data acquisition based on waveform graph
從波形圖中提取信號數據 -
Take integrity of object information into condition, a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design. and simulation in the background of hf multi - object with noise is taken. a comparison of signal properties, processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal
考慮到目標信息提取的相對完整性，以高頻雷達為背景，在對多載波相位編碼脈沖串信號參數設計的基礎上，推導了三種多載頻相位編碼脈沖串信號的距離速度二維處理過程並相應的對多目標噪聲環境進行了模擬;將多載波相位編碼信號與另外兩種距離高分辨信號:單載頻相位編碼信號和相位編碼階梯跳頻信號，在信號特性、處理過程和抗噪聲特性方面進行了對比;本文從理論上為多載波相位編碼信號的波形設計和分析、信號的處理打下基礎。 -
This dissertation mainly studies the pulse compression waveform designing and signal processing, including the following aspects : firstly, by the pulse compression basic theory, the linear frequency modulation signal ( lfm ), binary phase - coded signal ( bc ) and stepped - frequency ( sf ) signal are discussed respectively including the ambiguity function, pulse compression and spectrum characteristic
本文主要進行脈沖壓縮雷達波形設計以及信號處理方面的研究，主要體現在以下幾個方面:首先，從脈沖壓縮基本理論出發，分別給出了線性調頻、二相編碼和頻率步進信號的模糊函數、脈沖壓縮以及頻譜特性，對多普勒性能進行了簡要分析。 -
Because these methods do not need not only the doa of the signal ' s and the array manifold but also signal waveform, the blind beamforming algorithms using cyclostationarity signal ' s properties are the genuine blind algorithms
該方法既不需要知道來波方向和陣列流形，也不需要提供訓練數據，僅利用信號的循環平穩特性就可以實現真正意義上的盲自適應波束形成。 -
In chapter 5, constant modulus algorithm ( cma ) is a well - known blind adaptive beamforming method as it requires no pre - knowledge about the signal except that the transmitted signal waveform has a constant envelope
在實際的無線環境中，隨著用戶的激增，通信環境日趨惡劣，這就要求波束形成演算法在強干擾的環境中，仍然能夠快速而準確的收斂于期望信號。 -
But those universal equipment may not be fit for all particular users. a data acquisition system, which is used to sample instantaneous signal waveform is discussed in this thesis
市場上的數據採集裝置一般是基於pci和isa總線的，這佔用系統的硬體資源並且拆卸也不方便，給使用帶來麻煩。 -
It produces the i and q signals, limits their pass bands, uses them to modulate the subcarrier in a quadrature and adds the moduled subcarrier to the luminance y, blanking and synchronizing signal waveform
它首先分離出i信號和q信號，指定了它們的傳輸頻帶，並用它們對副載波進行正交調制，然後將調制過的副載波信號疊加到亮度信號y和同步信號波形上。 -
The g. 726 speech coding algorithm involves adaptive linear prediction to eliminate the correlation of signal waveform, so as to reduce the resulting bit rate
G . 726建議採用自適應預測編碼，以消除波形信號的相關性，從而降低語音信號表達的比特率。 -
On the base of hardware approach, to discuss all the theory involve in active detecting sonar system, including the selection of signal waveform, digital signal sampling, digital signal processing
以硬體為基礎，對所涉及到的理論都作論述，包括探測聲納的信號波形選擇，數字信號采樣、處理原理與方法。 -
There are many kinds of data acquisition devices for general usage. but those universal equipment may not be fit all particular users. a data acquisition system, which is used to sample instantaneous signal waveform is discussed in this thesis
對於一般的數據採集任務有通用的數據採集系統可供選用，但是考慮到數據源以及用戶需求的多樣性，目前通用的採集設備不會總能滿足所有要求。
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