2) estimation of spectral radius
谱半径估计
1.
In this paper,the sufficient and necessary condition for the consistency on the normal subpositive definite matrix solutions of the matrix equation X+A TX -1 A=I is derived,thus the sufficient and necessary condition for the consistency of it s inverse problem is obtained,and its general solutions are given,as well as an estimation of spectral radius about its solutions.
推导出矩阵方程Ｘ＋ＡＴＸ－１Ａ＝Ｉ有正规亚正定解的充要条件，从而得到了它的反问题有解的充要条件及其解的一般形式，并给出其解的谱半径估计。
3) multipath estimation
多径估计
1.
Two methods of multipath elimination technique utilizing narrow correlator and multipath estimation technique were given,the theoretic analysis and simulation results indicate that the methods are efficient in improving the precision of ranging.
给出了采用窄带相关器和多径估计技术减小多径跟踪误差的方法,理论分析和仿真结果验证了采用该方法能够有效提高测距精度。
5) semi-parametric estimation
半参估计
补充资料：半径
半径
radius
半径[口成‘s;p明I.yc】，国的或球面的 连接圆上(或球面上)一点与圆心(或球心)的线段.这个线段的长度也称为半径.BC3一3【补注】关于曲线、曲面、高维微分几何对象的曲率半径(m由比of eurvature)，例如见曲率(eurvature)和微分几何学(djfferenhalg印服try).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条