space-variant 中文意思是什麼
space-variant
解釋
空變-
On this slice a common normal variant is seen which may be mis - identified as lacunar infarction or other abnormality : the widened lenticulostriate perivascular space
在此層面，有一個正常的變異可能會被認為是腔隙梗塞或其它異常：紋狀體外周血管空間增寬。 -
Finally we separate the aberration into space invariant and variant component, which are eliminated by first and second - order compensation procedure respectively. then a method to integrate motion compensation in range - doppler ( rd ) imaging algorithm is presented
最後，研究運動補償與uwbsar中距離多普勒（ rd ）成像演算法相結合的實現方法，其中採用一階和二階補償以分別消除空不變和空變誤差的影響。 -
The log - polar transform ( lpt ) is a well - known space - variant image representation used in many image vision systems to eliminate the effects of scale and translation for the input image
摘要對數極坐標變換是圖像的一個空間變體表示，很多圖像視覺系統用它來消除輸入圖像的縮放和平移效果。 -
However, because coordination graph needs discrete state variant, it ca n ' t be applied in continuous state space such as robocup which communication condition is limited
但是協作圖要求離散狀態變量，所以無法直接應用到類似robocup這種通訊條件受到限制的連續狀態空間。 -
Compared with kalman filtering, the unknown definite disturbance with finite energy instead of white noise drives the state - space system in h filtering. compared with the time - variant filter and the first - order filter, h filter has preferable robustness
與kalman濾波相比， h _濾波採用未知的具有有限能量的確定性干擾代替白噪聲驅動狀態空間系統；與時變濾波器和一階濾波器相比， h _濾波器具有較強的魯棒性。 -
With the characteristics of large ambient noise, very narrow bandwidth, low carrier frequency, great propagation latency and time - space - frequency variant multipath effect ( mpe ), the stochastic ocean channel has demonstrated the greatest complexity and difficulty for underwater acoustic wireless communications. among them multipath effect ( mpe ) is the most difficult obstacle that results in signal fading and inter - symbol interference ( isi )
但是噪聲高、帶寬窄、載波頻率低、傳輸時延大、多途徑效應隨時間?空間?頻率變化等通道特性都會給有效、可靠的水聲通信帶來很大的麻煩，其中多途徑效應是最主要的困擾因素，它會導致信號幅度衰落和碼間干擾。 -
In order to get the portrayal information of space, time and attribute of geographic phenomena, implement unified storage and management of spatiotemporal data, retrieve these data according to variant requirement, and accomplish spatial, temporal and spatiotemporal analysis, developing spatiotemporal modeling technology that can integrate spatiotemporal data is becoming a highlighted research direction in gis
為了獲得對地理現象的空間、時間、及屬性的完整描述信息，實現時空數據的統一存儲、管理，並按不同需求提取，完成時序、空間和時空等多種分析，發展具有時空數據集成能力的時空建模技術已成為當前gis領域的一個重要研究方向。 -
Some improvement is made in this dissertation based on compare and conclusion of existing methods and theories, such as substituting space - variant filter for range interpolation in geometric distortion correction and improving atafs, both of which are demonstrated to reduce computational burden effectively
在現有的理論的基礎上，本文簡化了幾何校正通常所採用兩維插值，並且改進了wpfa和dda演算法，這些改進有效的提高了演算法性能。
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