ground echo 中文意思是什麼
ground echo
解釋
地面回波。-
Chapter 2 deals with the ground echo signal of sar, and establishes the signal models of static target and moving target
第二章研究了合成孔徑雷達回波信號，建立了靜止目標和運動目標的回波模型。 -
High frequency ground wave radar for near ocean inspection and ocean remote sensor is a method that use ocean echo wave dopier spectrum to deduce the parameters of ocean situation
高頻地波雷達近海監測和海態遙感技術是一種利用海洋回波多普勒譜反演海態參數的方法。 -
The emphasis in this composition is windshear signal processing technology. some processing methods are introduced in detail, they are suppressing clutter, extracting windshear parameters, computing hazard factor and etc. the signal processing simulation is accomplished on computer, it includes simulating microburst echo signal, simulating ground clutter echo signal, filtering clutter, estimating wind speed and calculating hazard factor. from the simulated results, a dangerous windshear is detected 5o ~ 78s, so the radar performance meets the certification requirements proposed by faa and nasa
本文重點研討了風切變信號處理技術，對雜波抑制技術、風切變特徵參數提取技術及危險因子計算方法等內容進行了深入的研究，並進行了計算機模擬，包括微下擊暴流回波信號模擬、地雜波回波信號模擬、雜波抑制、風速提取和危險因子計算。 -
In addition square design 12 the heavenly stems the twelve earthly branches column in the sun, ancient the heavenly stems for timing tool the twelve earthly branches, implied meaning to represent time, i hope, can with theme of sand at the i, echo each other, the building in the middle of the sun square is set as the round, hope it has by the look of on the plane figure been a stereoscopic round, and cover the ground and adopt the magnificent style that publicize, to reflect the enthusiasm of day is publicized, in addition the section of dim light of night represented by moonlight restaurant, i plan to have light more, can let people can fully experience the soft light makes the dim light of night pleasantly
此外在太陽廣場設計了12根天干地支柱，古代天干地支為計時工具，代表時間的寓意，我希望能和我時之砂的主題，相互呼應，太陽廣場中間的建築物設為圓形，希望從平面圖上看來是個立體的圓，而鋪地採用華麗張揚的風格，來體現日的熱情張揚，此外以月光餐廳為代表的夜色段，我打算多設燈光，能讓人能充分感受到柔和燈光下夜色迷人。 -
Feature extraction and classification of ground penetrating radar echo signals
探地雷達回波信號的特徵提取和分類 -
This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system
本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。 -
According to the seismic convolution model, a kind of matched filters in time - scale domain is designed for echo signal detection of ground penetrating radar ( gpr ) and implemented in this paper, which is applied to detect the location and amplitude of single reflection wavelet in receiving signal through continuous wavelet transform
摘要根據地震褶積模型，設計並實現了應用於探地雷達回波信號檢測的時間尺度域匹配濾波器，利用小波變換的時間定位性和尺度伸縮性，檢測出雷達接收信號中單個反射子波的位置與強弱信息，利用已知的雷達發射子波模型還原回波信號，達到了濾除噪聲、最佳接收的目的。 -
What i have done in this subject include : 1. consult the reference about gpr and appreciate the general theory of gpr ; 2. analyze the signal model of carrier - free pulse ground penetrating radar and the feature of each part of radar echo data
本人的主要工作包括： 1 .查閱探地雷達資料，了解探地雷達基本原理； 2 .分析無載頻脈沖探地雷達回波數據信號模型及各信號分量特徵； 3 .研究並完成信號處理演算法，即雜波抑制和合成孔徑處理兩部分演算法； 4 .實測數據進行模擬，驗證演算法效果並分析模擬結果。 -
Doppler radar is wide used, which utilizes the doppler shift between the target and radar to get the target information and process it. doppler radar has high performance on differentiating velocity, and it can efficiently solve the interference of the ground clutter to get the target echo from bad environment
多普勒雷達是一種廣泛採用的全相參體制的雷達，它利用目標與雷達之間相對運動而產生的多普勒效應進行目標信息提取和處理，具有較高的速度解析度，可以有效地抑制雜波，能在較強的雜波背景中分辨出動目標回波。
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