observation equation

In one of the schemes, the observation equation was built with the projection of target spacecraft feature line on pixel plane as the dual part using only vision camera., based on which the EKF was designed.

方案一以仅选用视觉相机，观测目标航天器特征线在像平面投影的对偶矢量，作为选择其对偶部建立观测方程，设计了扩展卡尔曼滤波算法。

The method first analyzes the characteristics of the background noise in the radiation images, and then assumes first-order Gaussian color noise to define the equivalent observation equation.

该方法分析了辐射图像背景噪声的特征，在合理假设其为一阶Gaussian有色噪声的基础上改写了图像的观测方程；

It transforms the double-differential carrier observation equation using null space transformation so that it need not to resolve real-time three-dimensional position parameters.

对单个历元的双差载波相位观测方程进行零空间变换，避免了实时变化的三维位置参数求解；

Based on the theory of horizontal pendulum, the theoretical function model of magnetic error of self adjusting level is deriveted, and observation equation in geomagnetic field is set up.

利用物理摆原理导出了自动安平水准仪磁致误差的理论函数模型，建立了地磁场中的观测方程。

observation equation of distance between sst satellites in refining earth gravity model

精化地球重力场模型中SST距离的观测方程