Based on the information theory,the performance of maneuvering target tracking can be improved by increasing the input information( observation vector).In this paper,the estimations of radial acceleration and radial v...Based on the information theory,the performance of maneuvering target tracking can be improved by increasing the input information( observation vector).In this paper,the estimations of radial acceleration and radial velocity obtained in the signal processing are introduced into the measurement vector by coordinate transformation.In order to solve the problem of high nonlinearity of the radial acceleration,radial velocity and the state vector,a new algorithm of multi-parameter sequential extended Kalman filter( MSEKF) is proposed.The tracking performance of this algorithm is tested and compared with the other tracking algorithms.It is shown that the proposed algorithm outperforms these algorithms in strong and weak maneuvering environments.展开更多
Perceiving musicology as a combination of scientific and academic disciplines, and considering the history and the way of its development, the author pays more attention to the problem of understanding the evolution o...Perceiving musicology as a combination of scientific and academic disciplines, and considering the history and the way of its development, the author pays more attention to the problem of understanding the evolution of music and musical science. Music education is presented in the relationship of the two main areas： science and education. There is evidence of a gradual expansion and changes in the content and methods of the science of music. The 21st century rapidly and dynamically entered in our lives in terms of the development of information communication, technological progress and unprecedented rise of scientific thought. Social upheavals of this period of history, a powerful wave of liberation movements have caused an unprecedented intensification of national creative forces committed to the development, expansion of contacts, attached to the other cultures. To date, the science of music has evolved so much on what grew out of it and separated into clearly separate spheres with their problems, trends, directions： music theory, music history, ethnomusicology, musical philosophy, and also music source studying. And it should be noted that each of these areas has its embodiment in materialized form of faculties, departments in the conservatory. Development of new standards, new plans, programs, new courses is a related process of development of these sciences in general.展开更多
基金National Natural Science Foundations of China(Nos.61531020,61471383)
文摘Based on the information theory,the performance of maneuvering target tracking can be improved by increasing the input information( observation vector).In this paper,the estimations of radial acceleration and radial velocity obtained in the signal processing are introduced into the measurement vector by coordinate transformation.In order to solve the problem of high nonlinearity of the radial acceleration,radial velocity and the state vector,a new algorithm of multi-parameter sequential extended Kalman filter( MSEKF) is proposed.The tracking performance of this algorithm is tested and compared with the other tracking algorithms.It is shown that the proposed algorithm outperforms these algorithms in strong and weak maneuvering environments.
文摘Perceiving musicology as a combination of scientific and academic disciplines, and considering the history and the way of its development, the author pays more attention to the problem of understanding the evolution of music and musical science. Music education is presented in the relationship of the two main areas： science and education. There is evidence of a gradual expansion and changes in the content and methods of the science of music. The 21st century rapidly and dynamically entered in our lives in terms of the development of information communication, technological progress and unprecedented rise of scientific thought. Social upheavals of this period of history, a powerful wave of liberation movements have caused an unprecedented intensification of national creative forces committed to the development, expansion of contacts, attached to the other cultures. To date, the science of music has evolved so much on what grew out of it and separated into clearly separate spheres with their problems, trends, directions： music theory, music history, ethnomusicology, musical philosophy, and also music source studying. And it should be noted that each of these areas has its embodiment in materialized form of faculties, departments in the conservatory. Development of new standards, new plans, programs, new courses is a related process of development of these sciences in general.
