signal energy 中文意思是什麼
signal energy
解釋
信號能量-
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。 -
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，改進了基於信號能量的分段演算法，並首次引入短時過零率以更準確地定位分段邊界。 -
We design several combined photonic crystals models based on the destructive interference theory, which can transfer completely the energy of a signal from one channel to another, or can realize light switching
本論文首次利用干涉相消的原理，設計了滿足一定條件的復合型光子晶體能量轉移模型和光子晶體光開關。 -
Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal
我的思路是：改造現有圖形結構，先建立能反映信噪比大小且含待定參數k的表達式，然後通過離散型h0pfi舊單層反饋神經網路，再結合前邊的混合濾波器構成一個非線性控制系統，寫出對應的網路函數，利用相平面法和李雅普諾大穩定性的判據，得到一個穩定的極限環，從而確定出參數卜的范圍，進而再對原來的小波軟閾值進行修正，用修正後的值作為小波閾值。 -
The photomultiplier converts the light energy signal into an identical electrical signal that can be easily manipulated and measured.
光電倍增管可將光能轉變成易於操縱或測量的電流信號。 -
The huge energy - momentum of particles can be transformed into thermal energy by accelerator experiment at high energy to study perturbative vacuum of quantum chromodynamics and determine the signal of quark - gluon plasma
在實驗上，人們通過相對論性重離子碰撞實驗把巨大的動能轉化為熱能，來研究量子色動力學的微擾真空及其所預言的夸克?膠子等離子體。 -
This reradiation or transmission of energy by the nuclei as they return to their initial state is what is observed as the mri signal
質子在返回初始狀態時所重新輻射或釋放的能量就是我們所觀察的磁共振信號。 -
Besides tt & c transponder, the power support for pico - satellite also covers cmos camera, data processing unit and energy subsystem, by connecting and charactization which, full course from modulation and demodulation of instruction data to feedback of image data, wireless long - range transmission and the feedback of sidetone signal could be achieved
4 、整個衛星的電系統除了通信一體機外，還包括cmos相機和數據處理單元以及能源分系統。具備了這幾部分，對系統聯試，實現了從指令信號的調制解調和圖像信號的返回的全過程，並且可通過遠距離的無線傳輸。 -
Enter calcium, which, by inhibiting the actiity of the sodium pump, regulates signal firing, and may consere energy and keep the high - frequency cells from burning out
加入鈣離子，可以抑制鈉泵的活動，調節信號的產生，可以保存能量，保護高頻細胞。 -
As for the feature of mandarin digit speech, the existing arithmetic is cited to design the software system, and the design process is described in the part. here, the shore - time ^ relative efp ( energy - frequency - product ) is used to make the capsheaf of chinese speech signal, and the short - time relative efq ( energy - frequency - quotient ) is used to separate its syllable and consonant - vowel segment, and it improves the correct rate
本文採用的漢語語音的端點信號的檢測和清濁音信號切分方法是：短時相對能頻積的方法對漢語語音信號的端點進行檢測；短時相對能頻比的方法對語音信號的清濁音進行切分，提高漢語語音信號切分的成功率。 -
Research for the relation between small signal gain coef ficient and pump - energy density of high - power off - axis two - pass amplificati on
離軸高功率雙程放大系統中小信號增益系數與泵浦能密度關系研究 -
After achieving the synchronization of the pn code and carrier, despreading and demodulating the received dsss signal can be executed with the local synchronized code and carrier. so, lots of energy and fund has been expended on it
直接序列擴頻系統只有在完成了偽碼同步和載波同步之後，才可能用同步的本地偽碼和本地載波對接收的擴頻信號進行解擴、解調。 -
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 -
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
通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的帶寬和準確。 -
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於加速度補償的機動目標檢測方法，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。 -
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、疏鬆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波形特徵及細節系數的統計量作為樣本的特徵值。 -
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對高質量語音和大容量系統的需要，在cdma系統中普遍採用了變速率語音編碼技術，根據話音的信號能量和背景噪聲動態地決定編碼速率，這種方法既保證了話音的質量，又降低了平均編碼速率，從而增加了系統容量。 -
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
最後基於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佈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。 -
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，實現增強信號能量的同時去除噪聲，從而提高了信噪比。
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