本文介绍了同时利用大基础乌兰韦伯尔测向机的和方向图及差方向图来测向的SVD新测向方法。理论计算和仿真表明，这种SVD（SUM BEAM VERSUS DIFFERENCE BEAM）新方法对短波信道的衰落和信号的自身调制有很好的克服，可应用于时短信...本文介绍了同时利用大基础乌兰韦伯尔测向机的和方向图及差方向图来测向的SVD新测向方法。理论计算和仿真表明，这种SVD（SUM BEAM VERSUS DIFFERENCE BEAM）新方法对短波信道的衰落和信号的自身调制有很好的克服，可应用于时短信号、跳频信号的测向，并且可用于乌兰韦伯尔测向机的自动化测向。展开更多
The Webster scalar curvature is computed for the sphere bundle T_1S of a Finsler surface(S, F) subject to the Chern-Hamilton notion of adapted metrics. As an application,it is derived that in this setting(T_1S, g Sasa...The Webster scalar curvature is computed for the sphere bundle T_1S of a Finsler surface(S, F) subject to the Chern-Hamilton notion of adapted metrics. As an application,it is derived that in this setting(T_1S, g Sasaki) is a Sasakian manifold homothetic with a generalized Berger sphere, and that a natural Cartan structure is arising from the horizontal 1-forms and the author associates a non-Einstein pseudo-Hermitian structure. Also, one studies when the Sasaki type metric of T_1S is generally adapted to the natural co-frame provided by the Finsler structure.展开更多
文摘本文介绍了同时利用大基础乌兰韦伯尔测向机的和方向图及差方向图来测向的SVD新测向方法。理论计算和仿真表明，这种SVD（SUM BEAM VERSUS DIFFERENCE BEAM）新方法对短波信道的衰落和信号的自身调制有很好的克服，可应用于时短信号、跳频信号的测向，并且可用于乌兰韦伯尔测向机的自动化测向。
文摘The Webster scalar curvature is computed for the sphere bundle T_1S of a Finsler surface(S, F) subject to the Chern-Hamilton notion of adapted metrics. As an application,it is derived that in this setting(T_1S, g Sasaki) is a Sasakian manifold homothetic with a generalized Berger sphere, and that a natural Cartan structure is arising from the horizontal 1-forms and the author associates a non-Einstein pseudo-Hermitian structure. Also, one studies when the Sasaki type metric of T_1S is generally adapted to the natural co-frame provided by the Finsler structure.
