propagation of errors 中文意思是什麼
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In order to control the propagation of errors and enhance the accuracy of numerical solution, the wilson - 0 method is modified and the numerical stability of modified wilson - e method is analyzed
為有效控制誤差的傳遞，提高計算精度，對wilson -法進行改進並分析了改進wilson -法的穩定性。 -
Effect of the measurement errors of atmospheric parameters on the laser propagation effects
激光傳輸大氣參量測量精度要求的數值分析 -
These errors severely degrade the service quality of video communication due to the propagation and accumulation of errors throughout the transmitted video stream
前向糾錯的方法可以提高壓縮后的視頻碼流在傳輸中抵抗誤碼的能力，但要以降低壓縮效率為代價。 -
Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality
由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。 -
Due to multipath effect, multiple access interference ( mai ), near - far effect, and mainly the non - li ne - of - sight ( nlos ) propagation, the errors in the estimated location parameters and position location occur
在cdma蜂窩網的定位中，引起定位參數估計誤差與定位誤差的因素有非視距傳播效應、多徑傳播效應、多址干擾及遠近效應。 -
Secondly, it provides some arithmetic and positioning methods used in the network - based navigation system and simulation outcomes. then, the paper analyses some errors of network - based navigation system. it studies error propagation of relay positioning and gives simulation results
然後給出了網路化導航的定位方法和演算法，並結合具體演算法進行了定位模擬計算；接著對網路化導航誤差進行了分析，研究了接力定位的誤差傳遞情況並進行了模擬和結果分析。 -
At first, by using the feature that the excess delays of nlos propagation follow the exponential distribution, the los propagation parameters are reconstructed and the toa parameters measured from all bs are preprocessed. then, the ms ' s position is estimated by the los locating algorithm with the preprocessed data. finally, to mitigate the effect of the errors in reconstructed parameters, the estimated results are smoothed
首先，利用非視距傳播時延服從指數分佈的特點，對不同基站一次測量的數據進行預處理，重構視距傳輸參量；然後，對處理后的數據採用視距定位演算法估計移動臺位置；最後，對估計結果進行平滑后處理，以減小重構出的參量誤差的影響，進一步提高定位精度。
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