off-line vehicle 中文意思是什麼
off-line vehicle
解釋
首班車-
One is the depart in the vehicle, the other is off - line data process system. some basic rules in designing are put forward at the end of paper
最後介紹了高速公路路面檢測系統的的整體體系結構，並提出了一些系統設計時的基本準則。 -
When the breeze came skimming the earth the sledge seemed to be lifted off the ground by its sails. mudge, who was at the rudder, kept in a straight line, and by a turn of his hand checked the lurches which the vehicle had a tendency to make
當寒風吹過大地時，雪橇被那兩只象巨翼一樣的白帆載著，就象是離開了地面騰空飛行，麥基緊握著舵把，保持著直線前進。 -
The noise signal of passing vehicles is gathered with microphone array, and processed off line with the method of wide - band array signal processing, then the estimation of vehicle numbers can be transformed into the estimation of signal source numbers, up and down of the vehicle can be transformed into doa estimation of array signal processing. at the same time, vehicle types are classified using pca method of the pattern recognition based on vehicle noise, and some primarily study is done for vehicle recognition. at last, the result of the experiment proves this method is feasible
對麥克風陣列所採集的車輛行駛時的聲音信號，運用寬帶陣列信號處理的方法進行離線處理，並將車輛個數的估計轉化為陣列信號處理中信號源個數的估計，將車輛上下行的估計轉化為陣列信號處理中波達方向變化的估計，進而較準確地估計出了車輛的個數與行車方向；同時對所採集的車輛聲音信號應用模式識別中的主分量分析法實現了車輛的簡單分類，為實現車型識別作了一些初步的探索。
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