bistatic 中文意思是什麼
bistatic
解釋
收發分置的-
The performance of the method is comparable with the lmf algorithm. the results show that the neural network method is a robust approach in bistatic localization
通過與lmf定位優化演算法的比較，證明神經網路方法是一種比較穩健的定位演算法，具有很好的工程應用前景。 -
Third, based on the non - linearity feature of the system, the lmf algorithm is given by using the non - linearity least square optimal method. the simulating results show that the accuracy of the algorithm approaches the cramer - rao - bound. finally, the radial based function network localization algorithm is present for bistatic sonar
為了克服lmf演算法在進行迭代時依賴于初始值的缺點，根據人工神經網路在求解非線性問題方面的特點，提出了用徑向基函數網路方法來進行雙基地聲吶定位的優化演算法。 -
It is of necessity to research non - cooperative bistatic radar to enhance the performance of radar fence
為了提高整個雷達網的性能，有必要重點研究非合作式雙基雷達。 -
The effect of local oscillator syntonization error and triggering time synchronization error on bistatic sar imagery are analyzed based on their error models. useful simulation results are provided for system design
本文重點研究了雙基地sar本振相位同步誤差與觸發時間同步誤差對成像的影響，建立了誤差模型，給出了模擬試驗結果，為系統設計提供了參考依據。 -
This dissertation mainly researches the displaced phase center antenna ( dpca ) technique in the new system, and the contributions are calculated as following : 1. the doppler history is analyzed for the spaceborne bistatic sar, doppler center frequency and doppler fm rate computational methods are studied. summing up is done for the methods of moving target detection and imaging
本文完成的主要工作有: 1 .分析慢速運動目標信號特徵以及運動目標對sar成像的影響（多普勒中心頻率，多普勒斜率以及距離徙動誤差） ，總結了目前sar運動目標檢測與成像的主要方法。 -
The geometry and echoed signal models of airborne bistatic sar in general flight configuration are introduced. two - dimensional matched filtering principle is examined and theoretical relationship between resolution and bistatic sar system parameters is suggested
本文首先分析了機載雙基地sar在任意飛行模式下的幾何模型與回波信號模型，闡述了二維匹配濾波成像機理，給出了解析度與雙基地sar系統參數間的理論關系。 -
A chirp scaling algorithm for airborne bistatic sar is proposed, which is suitable for the flight configuration that transmitter and receiver follow parallel path with equal velocity in broadside looking mode. airborne bistatic sar echoed signal model of this particular flightpaths is derived. the model is converted into the range doppler space and is mapped from double range variables to single range variable domain
本文建立了這種特殊飛行模式下雙基地sar的回波信號模型，推導了它在距離多普勒域的表達式，解決了信號模型從雙距離變量域向單距離變量域轉化的問題，並推導了cs因子的線性近似表達式，分析了演算法中各種近似造成的誤差。 -
Unlike the monostatic sar, two independent local oscillators are used for up / down conversion in bistatic case, so low frequency components of phase noise cannot be cancelled
雙基地sar用兩個獨立的本振分別實現上變頻和下變頻，相噪低頻分量不能相互抵消，形成與單基地sar不同的低頻相噪。 -
This paper ' s study is focused on the principle of bistatic sar on the basis of giving a brief introduction of sar principle, including azimuth resolution, mapping width, focusing deepness, pulse repetition frequency limitation and radar equation etc. then the paper studies the special form of bistatic sar with stationary transmitter
在簡要介紹了合成孔徑雷達的成像原理后，本文著重從原理方面對雙站sar進行了分析，討論雙站sar的方位向解析度，測繪帶寬，聚焦深度，脈沖重復頻率限制，雷達方程等問題，然後對發射機固定的雙站sar這種特殊的雙站sar模式進行分析。 -
Also it can effectively solve the main " four - threat " of single radar system. however, there ' s some problems must to be resolved, such as time synchronization, space and phase synchronization, signal processing, and clutter constricting, etc. this thesis concentrates on the time synchronization and phase synchronization of bistatic radar system
雙基地雷達體制和系統結構上的特殊性決定了它在技術上具有不同於傳統雷達的一些特點，所以雙基地雷達系統的研製首先需要解決時間同步、頻率和相位同步、空間同步、信號處理、雜波抑制等關鍵技術。 -
The typical use of bistatic sar with stationary transmitter, which is made up of the original coast guardian radar and the receiver on the aircraft, is imaging sea vessels. therefore, it is necessary to solve the problem of moving target imaging
發射機固定的雙站sar的典型應用是用原有的海岸警戒雷達和飛行平臺上的接收機組成成像雷達，主要用途是對海面船隻成像，因此必須解決在此種情況下對運動目標成像的問題。 -
A typical bistatic weather radar net work is comprised of one traditional transmitter - receiver radar and one or more passive non - transmitting radar receiver at remote site. this type of multiple radar network offers unique advantages when compared to traditional radar net work. this paper introduces the concepts and principles of bistatic weather radar network and analyses, simulates, calculates the basic concepts of effective scattering particle volume relative to the receiver of bistatic radar network, the doppler shifts of the received signals, gives the formula to conduct the three dimensions wind field
本文從原理上分析了雙基地天氣多普勒雷達的構建、基本幾何關系、有效散射體積及其與雙基地角的關系，有效散射體積和目標與雙基地天氣多普勒雷達主站發射機的距離的變化關系，指出雙基地天氣多普勒雷達有效體積和單基地雷達有效照射體積隨之距離的變化有相似之處，但是由於收發分置的幾何結構，雙基地天氣多普勒雷達的性質與雙基地大氣多普勒雷達的散射角有著密切的關系。 -
This paper studies the characteristic of scatter from moving target in the situation of bistatic sar with stationary transmitter. the wvd method is used in the paper to estimate the doppler frequency parameter of the moving targets ; the wvd - radon method is used to restrain the cross - term. then we can use the result to adjust the parameter of the filter, and to achieve the moving targets imaging of bistatic sar
本文分析了發射機固定的雙站sar情況下的運動目標回波信號模型，應用wvd變換對發射機固定的雙站sar回波的多普勒信號參數進行估計，並採用wvd - radon變換來抑制wvd的交叉項，以調整濾波器參數，實現發射機固定的雙站sar對運動目標聚焦成像。 -
The paper gives two ways to solve the phase synchronization, which is a key technology to bistatic sar, namely direct synchronization and indirect synchronization. meanwhile, the paper also studies the affection of linear phase error, quadratic phase error and sine phase error which are engendered by the method mentioned of the paper upon imaging
相位同步問題是雙站sar的一個關鍵技術問題，本文提出用直接同步法和間接同步法解決，並著重討論了兩種方法中可能出現的一次相位誤差、二次相位誤差、正弦相位誤差對成像的影響。 -
The rotated parabolic equation method was presented to compute the bistatic radar cross section ( rcs )
並提出了旋轉拋物線方程演算法，實現了目標任意角度雷達散射截面的快速計算。 -
Bistatic sar is becoming one of the hotspots in radar imaging technology in recent years
近年來雙基地sar成為雷達成像技術研究的熱點之一。 -
3. simple ukf could be gained on the base of linear observation function in bistatic radar, and be applied in the non - cooperative bistatic radar system
3 、基於雙基雷達存在線性觀測方程特殊情況，得到了一種簡化ukf演算法（ sukf ） ，並應用到非合作式雙基雷達系統中。 -
Theoretical analysis and simulation results show that it is mainly flicker noise, not phase or frequency white noise, that affects bistatic sar imaging performance
理論分析和模擬試驗證實了影響雙基地sar成像的相位噪聲主要是閃爍頻率噪聲，而不是白噪聲調相或白噪聲調頻。 -
Estimation of the moving parameters for objects in the bistatic forward scattering barrier radar
雙基地前向散射柵欄雷達的目標運動參數估計 -
2. nonlinear problem is inevitable in bistatic radar positioning and tracking
2 、雙基雷達定位跟蹤不可避免的會遇到非線性問題。
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