real time doppler 中文意思是什麼
real time doppler
解釋
實時多普勒-
Abstract : doppler navigation is a kind of independent navigational system, but its real - time speed measuring precision is comparatively low
文摘:多卜勒導航是一種自主式的導航系統，但其實時測速精度較低。 -
Among the different imaging algorithms, the range - doppler fft ( r - d fft ) algorithm, based on range - doppler theory, in which the fast fourier transform ( fft ) is employed to reduce compute burden, is widely used in various imaging radar because it can be easily realized in real - time application
陸基成像雷達（ gbr ）作為isar成像技術的重要應用，其觀測目標具有速度快，慣性大，運動相對平穩等特點，針對這些特點，本文對isar成像運動補償方面作了較為深入的研究。 -
By studying the present sar algorithm, analyzing the motion status of the plane and considering the requirement of the real - time processing, we improve the range - doppler algorithm to suit the real - time processing of the airborne sar imaging. the algorithm derived from the range - doppler algorithm has a simple structure and can compensate the plane ' s nonlinear motion and suit to real - time processing. the real - time processing experiments of the airborne sar imaging test the algorithm efficiency
本文通過對現有的合成孔徑雷達成像演算法的研究，以及對飛機運動狀態的分析，針對實時處理的要求，對距離多普勒演算法稍加改進，使之適合於機載合成孔徑雷達成像實時處理使用，該演算法根源於距離?多普勒演算法，結構簡單，既能夠對飛機的不規則運動進行有效的補償，又適合於實時處理。 -
The underwater acoustic channel is very complex where cochannel interference, doppler frequency offsets, narrow bandwidth and time and frequency selective deep fades obstructs the development of high speed and fidelity underwater data transmissions. thus projects of high speed and fidelity underwater signal transmissions become a hotspot in the fields of world academic circles. the conventional serial communication must use adaptive equalizer to combat the multipath in real - time
海洋水聲通道是一種極其復雜多變的時-空-頻變參通道，其通道窄，強多途干擾，信號起伏衰落嚴重，一直是水下信息可靠高速傳輸的主要障礙，因此如何在水聲通道中高速率準確地傳輸數據，就成為世界性的熱門課題。 -
At first, the paper discusses the method of doppler parameter estimation based on raw datum, and analyzes the realization for range - doppler algorithm in real - time processing, motion compensation, datum subsection and geometry emendation. then, the corresponding system solution based on the algorithm is put forward. the versa module eurocard bus construction is adopted in the system design
本文首先討論了基於原始數據的多普勒參數的估計方法，並且分析了距離多普勒演算法在實時處理中的實現，以及實時成像下的運動補償、數據分段及幾何校正；然後在此演算法的基礎上提出了相應的系統解決方案，系統設計採用vme總線結構，其運算核心部分是一個由四片數字信號處理器組成的共享總線式并行處理模塊，論文並提供了整個實時成像演算法的軟體實現。 -
Real - time estimation of doppler frequency offset in leo mobile satellite communication
低軌衛星的多普勒頻移實時估計 -
At last, the paper discusses the principle and the process of disposal of using directsound technology to realize real time sound synthesization, playback and 3d sound effect, and realize 3d effect and doppler effect of the sound simulation
探討了利用directsound技術實現聲音的混音、回放和3d效果的原理及處理過程，實現了機車聲音模擬的3d音效和多普勒效應。 -
Real - time production of doppler shift with a minimum precision of 0. 1 hz is realized by means of interpolation on the basis of lookup method ; simulation of doppler spread is realized by using the gaussian shaped fir filter and linear interpolation technique. 3
在查表法基礎上結合內插技術，實現了最小精度為0 . 1hz的多普勒頻移的實時產生;運用高斯型fir濾波器結合線性內插技術的方法，實現了多普勒擴展的模擬。
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