doppler analysis 中文意思是什麼

doppler analysis 解釋
多普勒分析
  • doppler : 多普勒效應
  • analysis : n. （pl. -ses ）1. 分解，分析；【數學】解析。2. 梗概，要略。3. 〈美國〉用精神分析法治療（＝ psychoanalysis）。
  1. 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。
  2. Error analysis of doppler radar expanded vad technique

    多普勒雷達vad技術擴展的誤差分析
  3. Exploration and analysis of velocity slow down reasons of vertabral - basilar arteries via transcranial color doppler

    基底動脈流速減慢的分析與探討
  4. Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region

    以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體；配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體，結合多尺度雲系模式，綜合構成層狀雲系中微尺度探測和分析處理技術方法。
  5. The estimation of frequency offset is based on pilot symbols and non - pilot symbols. this paper also discusses some parameters in the method and gives the way of compensation. to get the estimation method of doppler spread width, we model the rayleigh channel based on the conclusion of gans ’ spectrum analysis based on clarke model

    其中頻偏估計採用一種基於導頻符號和去極性非導頻符的方法進行估計，並通過試驗環境驗證了此方法，並確定了這個方法中的參數的取值，在此基礎上介紹了本系統中的頻偏補償方法。
  6. Frequency domain analysis and time - frequency joint analysis of experimental results show that the complex vibration of target can be effectively detected by laser micro - doppler effect, and it lays the foundation of target detection, classification and recognition

    實驗結果的頻譜分析和時頻域的聯合分析表明：利用激光微多普勒效應，可以有效地探測目標的復合振動，為目標的探測、分類和識別奠定了基礎。
  7. The data analysis has to compensate for the doppler shift to make any signal as sinusoidal as possible, which helps pull it out of the noise ( with something based on a fourier transform )

    數據分析中比較對多普勒偏移進行補償以使信號盡可能地接近正弦曲線，以方便從噪音中提取真正的信號（通過傅立葉變換） 。
  8. Clinical diagnosis and color doppler echocardiography analysis of 11 patients with left ventricular noncompaction

    心肌緻密化不全11例的臨床與彩色多普勒超聲心動圖
  9. Mainly this paper discusses applying time - frequency analysis in several questions, including estimation of doppler parameter imaging of sar, detection of moving target and estimation of direction of arrival in array signal processing

    本文討論了時頻分析在合成孔徑雷達成像中的多普勒參數估計的應用、時頻分析在動目標檢測中的應用以及它在信源來波方向估計中的應用。
  10. Attitude errors are given first, and then theoretical analysis, simulation result show 3 kinds of attitude errors ’ affection both on the doppler and the image. 5. motion compensations based on gps / ins / imu control system and pga self - focus arithmetic are analyzed

    5 .研究了以gps / ins / imu為基礎的平臺控制系統和以pga演算法為基礎的自聚焦兩種主要的運動補償方案，並根據載機運動狀態和多普勒頻率的關系，推導了一種基於瞬時運動狀態的運動方法，最後結合rd演算法加以補償。
  11. The computer simulations show the validity of the models. 3. joint estimation of the time delay and doppler frequency based on short - time fourier transform ( stft ) and time - frequency analysis are studied to estimate the parameters of the underwater target echo

    針對主動回波信號參量的估計問題，重點研究了利用短時傅立葉變換、時頻分析進行時延和多普勒頻移聯合估計，進而進行目標距離和速度參數的估計。
  12. In this paper, the doppler signed of cartridge velocity, that is produced by the doppler radar, is taken as the research object. the characteristics of the doppler signal of several kinds of cartridges are analyzed. the spectrum analysis method is used to measure the velocity of several kinds of cartridges, based on digital data processing technology and computer graphic technology

    本文以多普勒雷達測量彈丸速度得到的多普勒信號為研究對象，分析多種彈丸速度多普勒信號頻率特徵，運用數字信號處理方法和計算機圖形處理技術相結合的頻譜分析方法測量多種彈丸的速度。
  13. Motion errors are given first, and then theoretical analysis, simulation result show affections caused by 3 kinds of typical motion errors both on the doppler and the image. last the phase error criterions are given. 4

    4 .研究了機載雙站sar中偏航、俯仰和橫滾三種姿態誤差對回波多普勒頻率和雷達成像的影響，並分析研究了天線指向誤差對回波幅度的影響，最後通過模擬實驗證明了研究的正確性。
  14. Secondly, based on the analysis and simulations of the doppler time - shift for chirp - subpulse stepped frequency signal, this dissertation analyses the velocity compensation method for moving targets in chirp - subpulse stepped frequency signal, and presents a method for compensation of targets ’ velocity base on the least burst error rule

    其次，本文對chirp子脈沖頻率步進信號的多普勒效應進行了分析和模擬，在此基礎上，分析了對其進行運動補償的思路，提出了採用最小脈組誤差準則進行運動補償的方法。
  15. Analysis on data gathered from transcranial doppler among 1500 normal adults community

    1500名社區正常成年居民經顱多普勒檢測結果分析
  16. Characteristic analysis of vascular headache in children and adults by transcranial doppler and electroencephalography

    經顱多普勒與腦電圖對成人與兒童血管性頭痛特徵分析
  17. Based on the analysis of the isoline of the doppler - range algorithm and tdoa - tdof algorithm, the rule to select positioning satellites is proposed

    分析了doppler - range聯合定位及tdoa - tdof聯合定位的測量等值曲線特徵，並據此提出了定位衛星的選取策略。
  18. Through the analysis of the test data and the new development in the relevant literature, some more realistic models for sea - clutter and multipath propagation is concluded and the simulation is accomplished in the software. they provide the foundation for low - altitude radar target detection & tracking techniques research. in the second part, radar low - altitude target detection & parameters ( elevation - azimuth - range delay - doppler shift ) measure are studied

    （海）雜波和目標信號的多徑傳播嚴重影響了雷達低空目標探測與跟蹤的性能，通過分析國內外的有關試驗數據和最新的研究進展，總結出比較接近實際的海雜波和多徑傳播模型，並在有關軟體中實現了海雜波與多徑傳播的模擬，為進一步研究各種低空目標探測與跟蹤測量演算法提供了保證。
  19. And it also analysis the radar performance such as radar doppler properties, radar system ambiguities and target location accuracy. and the software carries out the radar echoes simulation. this dissertation is devoted to : 1

    論文採用模塊化的程序設計方法編寫了星載合成孔徑雷達系統設計與模擬軟體，完成星載合成孔徑雷達的系統設計和模擬工作。
  20. Secondly, based on the datd collected with the aid of doppler weather radar, second part has done the systematic analysis of successive rain gush from june 1 to june 3 and from june 24 to june 27 in 2000 in anhui province

    第二篇利用合肥多普勒天氣雷達的觀測資料，對2000年6月1日3日和6月24日27日安徽省境內發生的兩次暴雨過程進行了分析。
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