signal energy造句
例句與造句
- Analysis of signal energy transmission in blue - green laser uplink propagation model
藍綠激光上行傳輸通道的信號能量傳遞分析 - At last , a method from image processing aspect based on signal energy character is developed . examples of field data show that these methods are effective
最后基于反射信號的能量特點，從圖象分析角度對沖擊脈沖探地雷達的深度剖面進行了處理。 - One method is to embed the watermarking signal of pseudo - gauss random sequence into the low frequency sub band of dwt domain by analyzing both the distribution of the signal energy and the influence of the image disposal
一是通過對圖像小波變換后圖像能量的分布以及圖像處理對各小波子圖影響的分析，提出將高斯水印嵌入到小波變換的逼近子圖中。 - In this article , double threshold , iteration is applied to improve segmentation algorithm based on signal energy , and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound
本文通過使用雙門限、迭代等方法，改進了基于信號能量的分段算法，并首次引入短時過零率以更準確地定位分段邊界。 - In this paper a maneuver target detection method based on acceleration compensation is proposed to solve the problem mentioned above . with the ability to refocus return target signal energy to a single doppler cell , this method can gain a better maneuver target detection ability
針對上述問題本文提出了一種基于加速度補償?shù)臋C動目標檢測方法,該方法能夠將目標回波能量重新聚集到一個多普勒分辨單元內。 - It's difficult to find signal energy in a sentence. 用signal energy造句挺難的
- Based on signal from carbon fiber composite defects such as lamination , hole , looseners in ultrasonic testing , this paper performs wavelet packet transform on the ultrasonic signals to extract statistics of approximation coefficients and detail coefficients that contain a great part of signal energy as sample - features
摘要本文以碳纖維復合材料常見缺陷分層、孔隙、疏松的超聲波檢測缺陷信號為研究對象，對超聲波檢測信號進行小波包變換，提取包含信號絕大部分能量的近似系數(shù)波形特征及細節(jié)系數(shù)的統(tǒng)計量作為樣本的特征值。 - One of the key technologies of deep space communication is channel code . there are differences between deep space communication and the common space communication . because the former one has some characteristics , such as extending information transmission , and seriously reducing signal energy , it is necessary to ensure the information transmission band and the exactness by using the special means
信道編譯碼是深空通信中的關鍵技術之一,深空通信與一般的空間通信不同,深空通信具有信息傳輸時延大、信號能量衰減嚴重等特點,必須有特殊的手段保證其信息傳輸?shù)膸捄蜏蚀_。 - To meet the needs of the third mobile communication system for higher speech quality and greater system capacity , the cdma systems employ variable rate speech coding technologies , which select the encode rate dynamically according to the signal energy and background noise . this method insures the speech quality as well as reduces , the average encode rate , so the system capacity is increased
為了滿足第三代移動通信系統(tǒng)對高質量語音和大容量系統(tǒng)的需要，在cdma系統(tǒng)中普遍采用了變速率語音編碼技術，根據(jù)話音的信號能量和背景噪聲動態(tài)地決定編碼速率，這種方法既保證了話音的質量，又降低了平均編碼速率，從而增加了系統(tǒng)容量。 - Stochastic resonance ( sr ) is different from traditional methods ( such as correlation , equality superposition , filter etc ) in faint signal detection . sr can turn parts of noise energy into signal energy and enhance signal while wiping off noise , so that increasing the signal - to - noise rate ( snr )
隨機共振檢測技術與傳統(tǒng)的弱信號檢測方法(如相關、平均疊加或濾波等)不同，它可以把部分噪聲能量轉換成信號能量，實現(xiàn)增強信號能量的同時去除噪聲，從而提高了信噪比。 - According to the time variation and feature extraction difficulty of rotating machinery vibration signals , the rule of choosing wavelet basis function and wavelet denoising soft - thresholding value is proposed after making further research on wavelet transform technique , using for denoising rotating machinery vibration signals the conception of " energy " is proposed , based on the theory that signals energy in all frequency can be affected by faults deeply , to construct feature vectors of rotating machinery vibration signals which can give a convenient disposal way to fault feature extraction and fault intellectual diagnosis
針對旋轉機械振動信號的非平穩(wěn)性及特征難以提取的特點，通過對小波變換技術的進一步研究，提出旋轉機械振動信號處理的小波基函數(shù)選擇原則及小波包消噪的軟閥值原則。利用小波包變換對旋轉機械振動信號進行消噪處理和特征提取。并以“能量”為元素，構造旋轉機械振動信號的特征向量，從而為旋轉機械振動信號的故障特征提取以及后續(xù)的故障智能診斷提供了一種便捷的處理方法。