echo wall 中文意思是什麼
echo wall
解釋
迴音壁-
Wavelet packet transform is used to improve the snr of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through - wall radar echo
在對穿墻雷達回波信號建模的基礎上，用聯合演算法將非相干累積后的回波信號經過小波包變換提高信噪比，再用雙譜演算法進行信號檢測。 -
A new wavelet - bispectrum united detection algorithm is proposed to face with problems such as the complex structure and low signal to noise ratio of radar echo, when there exist difficulties in detecting impulses in through - wall radar systems
摘要針對沖擊體制穿墻雷達系統中回波信號結構復雜、信噪比低、信號檢測困難等問題，提出一種小波雙譜聯合檢測新演算法。 -
The tree outside the echo wall was planted 500 years ago. its twining branches look like nine dragons
九柏生長于迴音壁墻外，相傳是明永樂年間栽植的，距今已有500多年歷史。 -
The tree outside the echo wall was planted 500 years ago. its twining branches look like nine dragons. you are welcome to the
九柏生長于迴音壁墻外，相傳是明永樂年間栽植的，距今已有500多年歷史。 -
Major landscape has highland pasture, " lover dam ", " girl mountain ", " mother tree ", 100 zhang echo wall, purple golden river cuckoo screen, stone forest, coloured mountain, drop water rock, pot stone and lead zinc metropolis etc., gross area ask 100 square kilometers
主要景觀有高原牧場、 「情人壩」 、 「姑娘山」 、 「母親樹」 、百丈迴音壁、紫金河杜鵑屏、石林、花山、滴水巖、鍋石、鉛鋅都城等，總面積約100平方公里。 -
The initial field of the model is the in situ observational data. combining the observational data by the doppler weather radar, the distribution and evolution of macro - physical as well as micro - physical variations such as wind field structure, radar echo structure, overhang echo, bound weak echo region, strong echo wall, water content, etc. in the storm were analyzed
利用中國科學院大氣物理研究所建立的完全彈性三維雹雲數值模式，模擬了1996年6月29日發生在北京東北部京冀交界地區的一次強單體雹暴過程，並結合多普勒雷達探測資料，分析了風暴的流場結構，雷達回波結構特徵，含水量場等宏微觀物理量的分佈及其演變。
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