model attitude accuracy 中文意思是什麼
model attitude accuracy
解釋
模型姿態準確度-
As shown in the simulating results, the platform when flying with big attitude angles still has high accuracy of attitude control and the measure for linearization not only makes the model simple but also maintains the valid high accuracy
模擬結果表明，大姿態復合運動的平臺仍具有較高的姿態控制精度，並驗證了將二階小量忽略的線性處理方法既可以簡化模型，又不會影響模型的各項精度。 -
By way of analysis about the typical gps receiver tracking loops, the mathematical models of code multipath error and carrier phase multipath error are proposed in the dissertation ; by way of analysis about geometrical model of multipah signal, the mathematical model of differential path delay is proposed in the dissertation ; based on the above analysis, a improved carrier phase multipath mitigation algorithm using closely - spaced multiple antennas array is proposed, the result of computer simulation proves that the algorithm is feasible. the attitude parameters are often estimated using direct computation method. the relationship between the accuracy of attitude parameters and baseline length as well
本文從經典的gps接收機跟蹤環出發，分析了多徑效應對偽距觀測量、載波相位觀測量和snr的影響，提出了碼相位多徑誤差和載波相位多徑誤差的數學模型；通過對多徑效應的幾何模型分析，提出了多徑信號相對路徑延遲的數學模型；在此基礎之上，提出了一種改進的基於窄間距多天線陣列的載波相位多徑誤差抑制演算法，通過計算機模擬證明了該演算法的有效性。 -
In order to improve the performance of ekf and ukf, the square soot unscented kalman filter ( sr - ukf ) with multiplicative noise is firstly investigated. considering the satellite nonlinear model, the sr - ukf attitude estimator is derived for gyroless satellite attitude estimation to render the state covariance with positive semi - definiteness and exceptional estimation accuracy
對于姿態估計，採用了rao - blackwellization技術將衛星模型狀態向量中的線性狀態部分（陀螺偏差）和非線性狀態部分（衛星姿態）分開處理，線性部分狀態可以由卡爾曼濾波（ kf ）估計得到，非線性部
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