multipath effects 中文意思是什麼
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When low elevation targets arc tracked using the monopulse radar, the multipath effects including the specular reflect and diffuse reflect degrade severely the tracking performance
雷達跟蹤海面低空目標時，由鏡面反射和漫反射引起的多徑誤差嚴重影響雷達的跟蹤性能。 -
Firstly, the effects of short - delay multipath to the dll, pll, and snr of receive signal are discussed. then the effects of multipath to multiple closely spaced antennas are presented. and solve the problem by promote a new method based on extended kalman filtering, which utilize the correlation of measure data of dll, pll and snr of each antenna
最後，利用小范圍多天線系統中多徑信號對接收機碼環、載波環及信噪比影響的相關性，提出了基於擴展卡爾曼濾波器的多徑干擾抑制技術，解決了近距多徑信號的抑制問題。 -
In the radar elevation coordinate, the multipath effects are more severe, which cause periodic peak error in the target height measurement
在雷達俯仰角（目標高度）方向上多徑誤差的影響尤為嚴重，使得目標高度的測量誤差表現為周期性的尖峰誤差。 -
In the non - gaussian filtering algorithm, the measurement errors incorporating the multipath effects are modeled as the non - gaussian noise, and the filter are modified according to the score function. this algorithm, designed to track low - elevation targets, avoids the degrading of me performance because of ;. c non - gaussian noise in the filter
在非高斯演算法中，由於多徑誤差的影響，目標高度方向上的測量誤差表現為非高斯噪聲，首先建立觀測噪聲的非高斯模型，然後利用非高斯噪聲下的濾波演算法跟蹤低空目標。 -
In this dissertation, the theory and realiztion of gps based attitude determination technique are studied, multipath effects on gps observables and carrier phase multipath mitigation are also analyzed
本文研究了gps實時姿態測量技術的理論及實現，並分析了多徑效應對gps觀測量的影響及載波相位多徑誤差抑制。 -
This dissertation has studied the effects caused by terrain environment on the propagation of rf signal. the effects includes land clutter, multipath and diffraction
論文主要研究地面環境對射頻信號傳播的影響，包括三個方面的內容:地雜波效應、多路徑效應和衍射效應。 -
54 ye z, krishnamurthy s v, tripathi s k. effects of multipath routing on tcp performance in ad hoc networks. in proc
然而，前者出現了過時的路由信息，後者則會引起亂序，這也會降低tcp的性能。 -
It includes : target detection under sea - clutter and multipath propagation, multipath effects on parameters measure of target, analysis and comparsion of all multipath reduction techniques " performance
它包括海雜波背景和多徑傳播影響下的目標檢測技術研究；多徑傳播對目標參數測量的影響；各種多徑消除技術的性能分析與比較。 -
Chapter 3 investigates the capacity improvement in cdma multi - cellular system with base - station smart antenna. we consider the effects of multipath interference, thermal noise, path loss, processing gain and voice activity factor. and introduces multiuser detection combined with smart antenna
考慮了多徑干擾、熱噪聲、路徑損耗、處理增益和語音激活因子的影響；並介紹了與智能天線技術相結合的多用戶檢測技術。 -
In the field of underwater acoustic communications, the intersymbol interference caused by multipath effects will make the reliability and the rate of the propagation of underwater acoustic signals
在水聲數字通信系統中，聲波傳播的多途效應會引起嚴重的碼間干擾，使水下數據傳輸的可靠性和數據傳輸速率都大大的降低。 -
In one model the measurement errors consist only of the " standard " measurement noise, while in the other the measurement errors are dominated by the multipath effects. the interacting multiple model ( imm ) rithm automatically increases the variance of the altitude estimate and alleviates the iv. uiiipath effects, when the measurements are degraded
其中交互多模（ imm ）演算法中，建立兩種模型，一種模型中觀測方程的觀測噪聲為方差較小的一般性噪聲，另一種模型中觀測方程的觀測噪聲為方差較大的相關噪聲，用來表徵多路徑傳播引起的尖峰誤差。
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