A Strapdown Attitude Algorithm Based on Rotation Vector Error Estimate(VEE) Model 基于旋转矢量误差估计(VEE)模型的捷联姿态解算方法
I also calculate the dynamic critical value of budget deficit Consider the fractional cointegration between the spot prices and futures prices of Stock index futures; we use fractional Vector Error Correction Model ( VECM ) to estimate the optimal hedge ratios of stock index futures. 考虑到股指期货现货价格与期货价格之间存在分数维协整关系,将利用分数维向量误差修正模型用于估计股指期货最优套期保值比率。