速度信息 的英文怎麼說
中文拼音 [sùdùxìnxī]
速度信息
英文
velocity information-
Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used
通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。Based on perspective model, it was proposed that drawing camera inner parameters with physics method ; in image processing, especially the particularity of robot object localization and tracking, it was proposed that several effective methods of image smoothing and sharpening, edge detection, boundary tracking ; at the same time, in order to complete object recognition, we introduced the methods of drawing object character parameters ; in object image matching, two kinds of effective object matching arithmetic was proposed ; based on the principle of object 3d information restoration, we proposed two kinds of arithmetic of 3d coordinate restoration of object feature points, and completed object movement parameters estimate and object tracking and prediction, and presented experimental result
以透視成像模型為基礎，提出了用物理方法來提取攝像機內部參數；從圖像處理角度出發，針對機器人目標定位與跟蹤的特殊性，提出了幾種行之有效的圖像平滑、銳化、邊緣提取以及邊界跟蹤的方法；同時，為了完成目標的識別，介紹了目標特徵參數的提取方法；在目標圖像匹配上，提出了兩種快速有效的目標匹配演算法；基於目標深度信息恢復原理，提出兩種目標特徵點三維坐標恢復的方法，同時完成了目標運動參數估計和目標的跟蹤與預報，並最後給出了實驗結果。Hong kong and its investors are well - positioned to seize the opportunity afforded by our unique geographical situation, our distinct economic system as separate from the mainland, our highly - developed communication system and access to energy resources and raw materials by tapping the vast market in the mainland, co - ordinating mainland ' s expertise and resources in science and technology, and making use of mainland ' s solid industrial foundation, hong kong can effectively develop its capital - intensive investment, highly technological and high value - added industries, as well as speeding up technical renovation and transformation and improving international relations
香港以及投資者大可藉此機會，運用香港獨特的地理、有別于內地的經濟制度、信息系統高度發展、進口能源和基礎原材料方便快捷等優勢，結合內地的市場、內地的龐大的科技人員隊伍和力量，以及內地的工業基礎，在高科技投入、高技術含量、高附加值、高速度更新換代和高國際聯系等方面大做文章。According to the control theory, the system adds different damp feedback in three loops, which uses magnetic heading degree and velocities to damp errors
根據控制理論的思想，該演算法在系統3個迴路中分別加入不同的阻尼反饋網路，通過引入磁航向信息和充分利用系統本身速度信息來阻尼有害信息。Analyse the research of distributing of microbe community and the tendency of the change, disscuss the principle and traits of denaturing gradient gel electrophoresisand terminal restriction fragment length polymorphism, to research the law of change that the microbe community have in composting process, we can get effective and rapid information to filtrate the microorganism during composting process, then accelerate the development of compost technology
摘要對堆肥微生物種群分佈及其動態變化的研究進行了分析，論述了分子生物技術中的變性梯度凝膠電泳和末端標記限制性片段長度多態性的原理和特點，以及用於研究堆肥微生物的群落結構演變規律，為分析和篩選堆肥中的微生物提供更加有效、快速的信息，促進堆肥技術的發展。To avoid collision with static and dynamic obstacles, the magnitude and direction of the acceleration of mobile robot was adjusted dynamically in real time based on the relative acceleration information
相對坐標系中，採用包含相對加速度信息的避碰演算法，通過動態實時地調整機器人加速度的大小和方向，使其避開障礙物。A method of getting velocity information from s c vlbi observation
觀測記錄中獲取航天器速度信息的方法Drawed into the idea of the damped algorithm of inertial navigation system ( ins ), this paper designs a three - order level damped net in the level loops of strapdown ahrs and uses the velocities to obstruct the oscillations
本文將傳統的平臺內阻尼的思想引入到捷聯慣性航姿系統中，通過設計水平迴路中的三階內阻尼網路，利用系統本身的速度信息來阻尼周期振蕩。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。Because of the advantages of no range blind area, high range resolution, low signal power and simple structure, lfmcw ( linear frequency modulation continuous wave ) radar attracted more and more attention recently
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系統。由於其具有無距離盲區、高距離解析度、低發射功率、結構簡單，便於集成化等優點，適合用於液位測量系統。Dsp56f805 samples the ultrasonic pulse coming back from the target, then measures the distance and shows it on led. tms320vc5509a is accomplished the detecting speed and the main control of the radar system, is 16 fixed dsp with high performance and low power produced by ti company. dsp5509a samples the wave coming from t / r module, then measures the target ’ s speed and send this information to the assistant control chip - p89v51 based on boost c51 core mcs produced by philips company, which controls the lcd
測距雷達系統的控制和信號處理的核心晶元是motorola公司的dsp型16位單片機56f805 ，由它對超聲波回波脈沖進行ad采樣后，計算目標距離並在七段數碼管上顯示。測速雷達系統中信號處理的核心晶元是ti公司的超低功耗、高性能的16位定點dsp ? ? tms320vc5509a ，由它對收發組件輸出的多普勒回波進行采樣，計算出目標運動速度后，送給輔助控制晶元? ?飛利浦公司生產的基於c51內核的增強型單片機p89v51 ，並且在液晶顯示器上顯示速度信息。Traditional inertial mechanized - platform uses velocities to damp the system attitude to improve the precision of attitude, when the system acceleration is small. referring to the idea, this paper designeda damp kalman filter in strap - down attitude heading reference system ( ahrs ). the new method makes use of 3 - d accelerometer ' s measurements to estimate the system attitude, which is measured to compensate attitude errors. because the acceleration affected the precision of fiher directly, the fuzzy adaptive system was presented. the fuzzy logic inputs are three accelerations and the output is to control the measurement noise covariance matrix. simulations and experimental results prove that the damp algorithm can damp most of schuler oscillation and foucauh oscillation, so that to assure the filter convergence and efficiently improve the precision of strap - down ahrs
在系統機動性不強的情況下，傳統的平臺內阻尼演算法將系統本身的速度信息通過阻尼網路加到系統中，達到提高姿態角精度的目的.將這種平臺內阻尼的思想引入到捷聯慣性航姿系統中，在系統加速度較小的情況下，利用加速度計的輸出估計系統姿態角，通過卡爾曼濾波的形式補償系統姿態誤差.由於加速度的大小直接影響濾波器精度，本文設計了模糊自適應卡爾曼濾波演算法，根據三軸加速度計的輸出調整內阻尼量測誤差方差陣，從而避免了濾波器的發散.模擬和實驗驗證，內阻尼演算法可明顯抑制舒勒周期振蕩和傅科周期振蕩，避免了系統姿態漂移，有效提高了捷聯慣性航姿系統的精度Fiber optic gyro ( fog ) inertial system provides angular velocity and acceleration measurement of measurement body along three axes, based on the attitude matrix refreshed by outputs angular velocity to transform the acceleration from the body frame to the earth frame, finally through acceleration integral we can get the position of the measurement body in the space. fog is popular in the navigation field for many advantages, such as wide dynamic range, high resolution and all solid components
該測量方法利用捷聯式光纖陀螺輸出的角速度和加速度信息，測出運載體沿三個方向的加速度分量；再利用光纖陀螺輸出的角速率信號，不斷更新測量體的姿態轉換矩陣，將加速度分量用轉換矩陣更換到地理坐標系；最後經過計算機對轉換后的加速度信號積分運算分別可得到運載體在三維空間中的位置。Magnetic sensors are an important branch that can be used to detect the non - electronically characteristics through the magnetic field. the insb intellectualized magnetic coder sensor in this paper is designed for the measurement of the position of object and the angular velocity of object. through the sensor, the information of the position and the angular velocity are changed to electric pulse which can provides to other second instruments
通過磁場的無接觸特性，對非電量的測量是磁傳感器應用的一個重要方面，本文所研究的智能化磁編碼器是對于轉動物體的位置、角速度進行高精度測量的一類傳感器，它可以把轉動物體的位置和角速度信息轉換成電脈沖信號，供二次儀表使用。The velocity information obtained by doppler preprocessing is used for better pulse compression and range tracking
由預處理獲得的速度信息被用來提高脈沖壓縮質量和距離跟蹤。Then experiments which use the real data are performed. in the experiments, the velocity got by gps is used to be the reference. when the vehicle moves, the alignment system keeps working
車載試驗數據離線分析，試驗中使用gps測得的速度信息作為外測參考速度信息，在車輛運動過程中對準系統保持工作狀態。It really makes the information from different sensors complementary. the results indicate that the method not only dose a great improvement to local tracker ’ s performance but also improves the global tracking precision
該方法將包含速度信息的觀測量進行分離組合，構成紅外傳感器的偽測量向量，真正實現了信息的優勢互補，有效利用。Most car navigation systems estimate the car position from the dead reckoning and the global positioning system ( gps ). however, in combining the gps and dead reckoning, the kalman filter can be used. the estimated position by the kalman filter is proved to be optimal if the system is linear and the noise is white gaussian
車載自主導航系統主要是利用gps / dr （全球定位系統/航位推算）導航定位器來提供位置和速度信息。雖然用gps / dr組合導航系統進行車載導航，能夠有效的減少由gps導航所造成的誤差。Magnetic sensors are an important branch that can be used to detect the non - electronically characteristics through the magnetic field. the insb magnetosensitive sensor in this paper is designed for the fine measurement of the turning gear. through the sensor, the information of the angular velocity the gear is changed to electric pulse which can provides to other second instruments
通過磁場的無接觸特性，對非電量的測量是磁傳感器應用的一個重要方面，本文所研究的insb磁阻式轉速傳感器即是針對于轉動物體的轉速進行高精度無接觸測量的一類傳感器，它可以把轉動的齒輪的角速度信息轉換成電脈沖信號，供二次儀表使用。分享友人