echo-image 中文意思是什麼
echo-image
解釋
回波圖象-
Stone of the bile duct outside liver exceeds acoustic image in b stronger echo light shows to the group accompanies phonic photograph and can change along with the posture on the graph
肝外膽管結石在b超聲像圖上顯示較強回聲光團伴有聲影並可隨體位而變動。 -
All of the above will be explained in details in chapter 4 section 1. 2 ) simulation of sea echo determines the quality of radar echo image to a great extent
2 ）雷達回波中海雜波生成模擬的模擬程度，在很大程度上也決定了雷達回波圖橡的質量。 -
The thesis reviews the theory which is the basis of synthetic aperture processing and introduces five algorithms of image reconstruction : the coherent addition provides a good opportunity for the real time sas ; the envelope processing can work when sonar echo returns lack phase coherence ; the i - q processing can reduce the sampling rate ; the broadband and ctfm processing are both aimed to increase the sas mapping rate
討論了用於重構圖象的五種演算法，包括簡單的可進行實時處理的相關合成法，可以在缺乏相位信息時使用的包絡處理法，可以降低采樣率、減少運算量、存儲量的正交處理法，可以提高聲納運行速度，從而提高成象率的寬帶處理法和ctfm法等五種演算法。 -
Finally, the polarimetric calibration methods based on echo data and image data are proposed, and computer simulations validate the methods
最後分別提出了基於回波域和二維波數域的極化校準方法，模擬結果驗證了該方法的有效性。 -
Studies of possible links between workers ' self - regard and job performance echo what has been found with schoolwork : the simple search for correlations yields some suggestive results, but these do not show whether a good self - image leads to occupational success, or vice versa
對于自尊感與工作表現之間可能的關聯性，研究結果正回應著學業上的發現：如果一味地尋找相關性，的確會產生某些具暗示性的結果，但這並不表示良好的自我形象會導致職場上的成功，反之亦然。 -
A distant rain area can sometimes show up on the radar image as " second trip echo "
遙遠的雨區有時能在雷達圖上顯現成二次傳輸回波。 -
K method fft the echo signal, and transform it to the ? k domain, it is the most effective method to implement the 2 - d sar shifting filter. however, stolt interpolation will increase the imaging time, and will influence the quality of the image
波數域成像演算法是sar二維移變濾波器的最有效實現，但是stolt插值運算將帶來附加的計算量並且頻域插值精度對成像質量有一定影響。 -
1. stepped - frequency signals are used in echo simulation. it could generate synthetic high resolution image
1 、用步進頻率信號完成回波模擬，研究了這種信號的特點。 -
Therefore, research on improving the image resolution of sar and isar continuously has been a hot as well important topic. time series echo signal can be decomposed to imfs ( intrinsic mode function ) by emd ( empirical mode decomposition ) algorithm, which is distributed following frequency
經驗模態分解（ emd : empiricalmodedecomposition ）方法能夠把時間序列信號分解成有限數目的本徵模態函數（ imf : instrinsicmodefunction ） ，分解結果按頻率高低分佈。 -
Based on the above, the paper analyses the echo model of sar moving target and the impact that caused by the velocity of moving target in sar image with imaging theory. then the paper gives the intensity image of the real part of the echo for both static and moving targets, and the paper gives their imaging picture generated by r - d algorithm as well
在此基礎上，本文推導出了運動點目標的回波模型，並結合成像原理分析了運動目標速度對sar圖像的影響，最後給出了靜、動目標回波的實部灰度圖及其r - d演算法成像圖，並進行了分析和比較。 -
Based on theoretical deductions and data simulations, this dissertation analyzes properties of echo data in time domain, frequency domain and wavelet packet transform ( wpt ) domain. we also analysize properties of complex image data in image domain, image frequency domain and image wavelet packet transform domain. several methods are proposed for jamming suppression in signal domain and image domain respectively
本文在理論推導、數據模擬的基礎上，分析了原始回波數據在時域、頻域和小波變換域的特徵以及復圖像數據在圖像域、圖像頻域和圖像小波變換域的特徵，提出了幾種行之有效的信號域和圖像域抑制方法。 -
The function of this algorithm includes two parts : first, bring the radar echo data into clutter reduction operation ; second, bring the data after clutter reduction into synthetic aperture operation in order to improve the image resolution
該信號處理演算法的主要功能是對探地雷達回波數據首先進行雜波抑制處理，之後利用合成孔徑孔徑技術提高成像的解析度。 -
Improved algorithm for generated radar image are presented in chaper 4 : 1 ) acipss is improved in radar echo generation. new method is to combine acipss with single back buffer display. the combination realize high level simulation of true antenna sweep effect
1 ）採用掃描線求交回波生成演算法和單后備緩存顯示相結合的方法比較好地實現了雷達回波旋轉掃描顯示的高質量模擬，這將在第四章第一節中詳細闡述。
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