Huang 98 文章——The empirical mode decomposition and the hilbert spectrum
标签： decomposition empirical spectrum hilbert
上传时间： 2013-12-19
上传用户：CHENKAI
NEW ORTHOGONAL BINARY USER CODES FOR MULTIUSER SPREAD spectrum COMMUNICATIONS
标签： COMMUNICATIONS ORTHOGONAL MULTIUSER spectrum
上传时间： 2017-08-11
上传用户：shanml
cognitive radio book .Dynamic spectrum access chapters
标签： cognitive chapters spectrum Dynamic
上传时间： 2013-12-17
上传用户：kytqcool
VCL component dsplab , STFT and spectrum viewer, real time
标签： component spectrum dsplab viewer
上传时间： 2017-09-17
上传用户：zhoujunzhen
Features a unique program to estimate the power spectral density. The spectrum containing all significant details is calculated from a time series model. Model type as well as model order are determined automatically from the data, using statistical criteria. Robust estimation algorithms and order selection criteria are used to obtain reliable results. Unlike in FFT analysis, where the experimenter has to set the amount of smoothing of the raw FFT, the right level of detail is assessed using the data only.
标签： containing Features estimate spectral
上传时间： 2014-02-09
上传用户：daguda
Since the principle of multi-carrier code division multiple access (MC-CDMA) was simultaneously proposed by Khaled Fazel et al. and Nathan Yee et al. at the IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) in the year 1993, multi-carrier spread spectrum (MC-SS) has rapidly become one of the most wide spread independent research topics on the field of mobile radio communications. Therefore, the International Workshop on Multi-Carrier Spread spectrum (MC-SS) was initiated in the year 1997. Multi-carrier and spread spectrum systems with their generic air interface and adaptive technologies are considered as potential candidates to fulfill the requirements of next generation mobile communications systems.
标签： Multi-Carrier spectrum Spread 2007
上传时间： 2020-05-31
上传用户：shancjb
Rapid growth of wireless communication services in recent decades has created a huge demand of radio spectrum. spectrum scarcity and utilization inefficiency limit the development of wireless networks. Cognitive radio is a promising tech- nology that allows secondary users to reuse the underutilized licensed spectrum of primary users. The major challenge for spectrum sharing is to achieve high spectrum efficiency while making non-intrusive access to the licensed bands. This requires in- formation of availability and quality of channel resources at secondary transmitters, however, is difficult to be obtained perfectly in practice.
标签： Opportunistic spectrum Sharing
上传时间： 2020-05-31
上传用户：shancjb
The goal of this book is to provide a concise but lucid explanation and deriva- tion of the fundamentals of spread-spectrum communication systems. Although spread-spectrum communication is a staple topic in textbooks on digital com- munication, its treatment is usually cursory, and the subject warrants a more intensive exposition. Originally adopted in military networks as a means of ensuring secure communication when confronted with the threats of jamming and interception, spread-spectrum systems are now the core of commercial ap- plications such as mobile cellular and satellite communication.
标签： Principles spectrum Spread of
上传时间： 2020-05-31
上传用户：shancjb
The continuing vitality of spread-spectrum communication systems and the devel- opment of new mathematical methods for their analysis provided the motivation to undertake this new edition of the book. This edition is intended to enable readers to understand the current state-of-the-art in this field. Almost twenty percent of the materialinthiseditionisnew, includingseveralnewsections, anewchapteronadap- tive arrays and filters, and a new chapter on code-division multiple-access networks.
标签： Spread-spectrum Communication Principles of
上传时间： 2020-05-31
上传用户：shancjb
An understanding of the policies, regulations, standards and techniques of radio spectrum management is useful to those who manage and administrate it, to operators, to equipment providers and to the users of wireless communication (i.e., all of us). For many years the author has been deeply involved in ruling the RF spectrum at the national, regional and global levels. The book is based on the professional experience of the author, his academic courses, presenta- tions and tutorials in five continents. The book reflects this legacy and will be of use to engineers, lawyers and economists, who serve the global industry of the wireless world; in it they may find solutions to the problems they frequently encounter.
标签： Management spectrum Radio
上传时间： 2020-06-01
上传用户：shancjb
