velocity modulation 中文意思是什麼

velocity modulation 解釋
速度燈
  • velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. Random pulse position modulation ( rppm ) signal not only has good resolution of distance and velocity, but also has low probability of interception and strong properties of eccm

    隨機脈位調制信號不僅具有良好的距離和速度分辨力，而且具有較低的被截獲概率和較高的抗干擾性能。
  2. Velocity measurement using single linear frequency modulation pulse

    單個線性調頻脈沖信號測速方法之研究
  3. There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers. few - femtosecond pulses have already been generated from ti : sapphire lasers, by means of combining self - phase modulation with negative group velocity dispersion, which is similar to the way of soliton generation

    鈦寶石激光自鎖模的發現使得超短脈沖技術發生了革命性的變化，利用自相位調制和負群速度色散結合的類孤子產生方式，人們已經在鈦寶石鎖模激光器上得到了脈寬只有幾個飛秒的光脈沖。
  4. Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity

    該模型的主要特點是： （ 1 ）它採用了三尺度復合表面模型的思想來計算海面的電磁散射，考慮了中等尺度波對紋波的進一步調製作用，彌補了傳統雙尺度模型的不足； （ 1 ）它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用，實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬； （ 3 ）它把海面長波的軌道速度作為基本的動態成分，並依此來考慮海面運動對sar回波信號的影響。
  5. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  6. Feature : this machine uses puts the material automatically to investigate arranges the odd and even photoelectricity track, the frequency conversion velocity modulation, may moreover clamp inserts plants the material in addition, forexample : in white film among inserts the pearly luster membrane

    特點:本機採用放料自動糾編單雙光電跟蹤、變頻調速、可另外夾插另種材料，如：在白膜中間加插珠光膜。
  7. This article angle has analyzed the higher professional technical education from cbe / dacum " the electrical control technology " the curriculum ability localization, according to the higher professional technical education " the electrical control technology " the curriculum ability localization, point out the insufficiency and flaw existed in commonly used control electric appliance choice, electrical pilot wire road map, electricity control system installment, wiring craft, electrical control line fault diagnosis system approach, new starting velocity modulation equipment and control circuit, control circuit and main circuit aspect and so on

    摘要本文從cbe / dacum角度分析了高職「電氣控制技術」課程的能力定位，根據高職「電氣控制技術」課程的能力定位，指出了現行高職「電氣控制技術」教材在常用控制電器選擇、電氣控制線路圖、電氣控制系統安裝、接線工藝、電氣控制線路故障診斷的系統方法、新型起動調速設備及控制電路、控制電路與主電路的連接等方面存在的不足和缺陷。
  8. Volume velocity modulation system of digital control

    容積調速的數字控制
  9. Pulse compression technique is widely used in modern radar systems. it solves the contradiction between the range and velocity resolution. large time - bandwidth product signals such as linear frequency modulation signals ( lfm ) are used in pulse compression technique to improve the resolution in range domain

    現代雷達系統廣泛採用脈沖壓縮技術，在確保雷達作用距離和速度分辨力的前提下，採用大時帶積脈沖壓縮信號:如線性調頻（ lfm ）信號提高距離分辨力。
  10. Optimizing experimental system of velocity modulation molecular ionic spectroscopy

    速度調制分子離子光譜實驗系統的優化
  11. Application of scanning velocity modulation circuit in digitalized color tv receiver

    掃描速度調制電路在數字化彩電中的應用
  12. And a few module of quasi random code modulation signal and a radar signal processing module which can extract the information of velocity and range are carried on. the result can be applied on radar systems

    接下來實現了幾種偽隨機碼調制信號的模塊以及提取速度距離信息的雷達信號處理模塊，成果可用於實際的雷達系統。
  13. The origin of supercontinuum ( sc ) generation in optical fibers has been conjectured to be the interplay between fiber nonlinearities ( self phase modulation, cross phase modulation and raman self scattering ) and group - velocity dispersion ( gvd )

    光纖中超連續supercontinuum （ sc ）譜的產生源於光纖中各種非線性效應（自相位調制效應、交叉相位調制效應，四波混頻效應及受激raman散射等）和群速度色散的共同作用。
  14. Transmition velocity relys on the style of encode and modulation essentially during modern data transmition for the quality of using line bandwidth and the immunity of code ties on them tightly. but it is important that the velocity of data transmition reaches its limitation in fact for the interface of environment and cross - talk. so for the improvement of transmition velocity, we must analyze the characteristics of noise signal and the model of line deeply and then take some useful measures to better the immunity of modulation wave

    在現代通信的數據傳輸過程中，傳輸速率本質上是由傳輸的編碼方式和調制方式決定的，因為編碼方式和調制方式直接決定了線路頻帶利用率和碼元抗干擾能力的好壞，因而直接決定了傳輸速率；但是在實際應用過程中，數據傳輸速率是不可能達到理想狀況的，因為環境干擾、串音干擾等因素的存在使得線路的頻帶不可能被完全利用起來；因此，必須認真分析線路的噪聲信號的特性以及噪聲線路的模型，以便在編碼方式和調制方式中針對性的做一些改進措施以改善調制波形的抗干擾能力，使得傳輸速率能夠進一步提高。
  15. We derive an analytic expression of the group velocity dispersion ( gvd ) induced chirp and the self - phase modulation ( spm ) induced chirp in the normal dispersionregion of non - kerr - like optical fibers with saturable nonlinarity. the evolution of chirp is simulated by numerical methods. the studied results show that the more powerful saturable effects, the smaller is chirp and the gently is chirp. the net chirp is zero in the central region of the pulse

    從理論上推導出具有飽和非線性的非克爾光纖正常色散區內，群速度色散效應導致的啁啾和自相位調制效應導致的啁啾解析表達式.利用數值解法模擬了非克爾光纖正常色散區啁啾演變過程.研究結果表明：當非克爾光纖的飽和非線性增強時，凈啁啾不斷減小，而且，越來越平緩，脈沖中心附近區域凈啁啾接近零
  16. Lfmcw ( linear frequency modulation continuous wave ) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave

    線性調頻連續波（ lfmcw ）雷達是一種通過對連續波進行頻率調制來獲得距離與速度信息的雷達體制。
  17. The origin of supercontinuum spectrum ( sc ) generation in optical fibers has been shown to be the interplay between fiber nonlinear effects ( such as self phase modulation, cross phase modulation, stimulated raman scattering and stimulated brillouin scattering etc ) and group - velocity dispersion ( gvd )

    光纖中超連續譜supercontinuumspectrum （ sc ）的產生源於光纖中各種非線性效應（如自相位調制效應、交叉相位調制效應，四波混頻效應、受激raman散射與受激brillouin散射等）和群速度色散共同作用。
  18. Adopting italian frequency conversion velocity modulation electrical machinery, with the highest speed as 6, 000r / min, makes the pieces much smoother and more precise

    採用義大利變頻調速電機，最高轉速可達6000轉/分鐘，使工件裁切面更光滑?更精確。
  19. The content includes real - time velocity variation, motor position control, velocity filtering and smoothing, etc. the real - time velocity modulation is mainly about how to choose certain acceleration curve according to exterior instruction

    本論文詳細分析了基於線性加減速演算法的nc指令生成及解釋，包括實時調速、電機定位、速度濾波、平滑等。實時調速主要是根據外部指令選擇一定的加速曲線完成動作。
  20. Abstract : technique feature ， development situation and performance of frequency changing for velocity modulation are introduced in detail. technique problem of practical application and adaptability of electric control of frequency changing for velocity modulation in crane are discussed. througn the existing electric control problems for traditional crane ， two basic circuits and their elements of frequency changing for velocity modulation are recommended

    文摘:本文詳細介紹了變頻調速的技術特點、發展狀況及目前變頻調速器的性能特點，結合傳統起重機電氣控制存在的問題，討論了變頻調速器在起重機電氣控制中的適用性及在實際應用中的技術問題。
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