移針距 的英文怎麼說
中文拼音 [yízhēnjù]
移針距
英文
shogging-
In this dissertation, the location estimation methods for mitigating the influence of the nlos propagation and the location parameters estimation methods for ds - cdma cellular radio systems are studied. furthermore, the influence of the nlos propagation on the performance of radiolocation systems is analyzed. moreover, by using pilot sequences from the base station ( bs ) in wireless cdma cellular networks, the techniques for detecting and locating and tracking for 3 - d moving target are provided
本論文針對蜂窩網中移動臺定位這一熱點,研究了移動臺定位的非視距影響減輕技術以及適用於ds ? cdma系統的定位參數估計技術,分析了非視距對定位性能的影響,並研究了利用蜂窩網路資源對三維運動目標的檢測、定位與跟蹤技術。The main content of this dissertation can be concluded as following : a ) on the base on discussion of sar high resolution and theoretical imaging model, sar signal processing is analyzed in detail. range immigration and estimation of doppler parameters are also involved during discussing space - borne sar imaging and processing. a good result is obtained in the course of processing seasat and x - sar raw data
在討論了sar二維高分辨力機理和sar成像理論模型的基礎上,針對sar成像信號處理,分析成像處理的基本原理,和星載sar成像處理中的距離遷移校正和多普勒參數估計等關鍵問題,編制了處理程序,對seasat , x - sar的原始數據進行了試驗,得到滿意的效果。Base on the study of long distance wireless communication channel characteristics, the thesis gives an analysis on the existing problems and proposes a solution : implanting the ofdm technique in communication system modulator
本文從對無線遠距離移動通信通道的特性研究出發,分析了其存在的問題。然後針對問題提出了解決方案? ?採用ofdm技術來設計通信系統的調制器。In the paper, it is discussed to the winding of hydrophone array, the deviation and depth difference between focus and hydrophone array, and the deviation of time - distance curve, and presents a way to solve the problems
本文針對排列彎曲、炮點偏移距大小、炮點與檢波器不在同一深度以及時距曲線偏移等問題進行了討論,並提出了校正和解決的方法。Based on the facts that time of arrival ( toa ) of the first multipath signal is always most close to that of los propagation and angle of arrival ( aoa ) of the first multipath signal is not always most close to that of los propagation among all multipath signals in nlos propagation environment, a location algorithm is proposed to mitigate the influence of nlos propagation, which effectively reduces the feasible region of a ms in macrocells
依據在非視距傳播環境下存在的以下兩個事實:第一,最先到達多徑信號的波達時間總是最接近直達波的波達時間。第二,最先到達多徑信號的波達方向並不一定最接近直達波方向。針對宏蜂窩系統,從有效減小移動臺可行域的角度,提出了一種減輕非視距影響的定位演算法。The computer simulations show the validity of the models. 3. joint estimation of the time delay and doppler frequency based on short - time fourier transform ( stft ) and time - frequency analysis are studied to estimate the parameters of the underwater target echo
針對主動回波信號參量的估計問題,重點研究了利用短時傅立葉變換、時頻分析進行時延和多普勒頻移聯合估計,進而進行目標距離和速度參數的估計。Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved
本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型,討論了線性調頻脈沖信號的匹配濾波(脈沖壓縮) 、 sar距離特性、方位特性和多普勒歷史,同時針對sar成像信號處理,分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。Firstly, the relationship of atomic force and distance is studied. the scan type of samples and the working mode of probe is confirmed, then pzt is chosen as actuator for micro scan displacement, and optical deflexion method is used to detect the deflexion value of cantilever. after all these work, the system light path design is finished, and its mathematical model is completed
首先,分析了原子力探針系統的中原子力?距離的關系,並確定探針系統的探針的工作模式和樣品的掃描模式,從而選擇壓電陶瓷作為掃描微位移驅動器;採用光學偏轉法檢測微懸臂偏轉量,並選用了psd作為傳感元件,並在此基礎上進行了系統光路設計及其數學模型的建立。Parameter is the offset from the stack pointer to the high - order part of the value
參數是距離值的高位部分堆棧指針的偏移量。Parameter is the offset from the stack pointer to the low - order part of the value, and the
參數是距離值的低位部分堆棧指針的偏移量,This machine has two needle bar plates and one feeder. it has one or two shuttles for changing the dyed yarn. the back needle bar can be moved to left or right for changing the gauge by handle in order to knit twill pattern
本機有二塊針板,單路進紗,有一隻或二隻梭子可以調換使用,以變更色紗,后針板可用柄向左或向右移動針距,以織斜形花紋。Fractal neighbor distance gives a quantitative measure of the input - output characteristics of the fractal code of an encoded image. the fundamental mechanism behind this recognition scheme lies in the uniqueness of the attractor of a fractal code. the attractor has the invariance to image translation, rotation, scaling and illumination
分形鄰距是針對進行了分形編碼的圖像而定義的一種圖像間相似度的測距方式,它具有編碼的吸引子唯一不變性的特點,因而對旋轉、縮放、平移以及光照都有不變性,這樣可以很好實現正確識別。To insure the spraying robot apperceiving position signs in field reliably and exactly while move in field, we select magnetic sensing mode, and develop a kind of position sensor that can apperceive magnetism signs from long distance
針對噴霧機器人田間移動位置檢測的準確性和可靠性要求較高的特點,選擇磁傳感方式,自行研製了一種可以遠距離檢測磁標志的位置傳感器。分享友人