彩色實驗 文件：demo_color.m 1. 提取RGB圖像的三個分量，并分別顯示。 2. 合成偽彩色圖像。 3. 將RGB圖像轉換到HSI空間，并顯示三個分量。 4. 對原圖像的RGB三個分量分別進行平滑操作，將原圖像轉換到HSI空間對亮度分量進行平滑操作，計算兩種平滑操作方法的圖像差值。 5. 在RGB和HSI空間中用ice函數進行色彩調節。 壓縮實驗 文件：demo_huff.m 1. 計算矩陣f=[119 123 168 119;107 119 168 168;119 119 107 119;168 107 119 119]一階熵估計,并進行霍夫曼編碼。 2. 對Lena圖像進行霍夫曼編碼，并對編碼后圖像解碼。
上傳時間： 2019-01-19
上傳用戶：Rouxuan
The idea of the book was born during the time when the second generation cellular system was looming on the horizon.At that time ,the world was divided into three distinct camps as far as looking for a standard: Europe North America and Japan.
標簽： Designing Cellular Systems Mobile Radio
上傳時間： 2020-05-26
上傳用戶：shancjb
The wireless market has experienced a phenomenal growth since the first second- generation (2G) digital cellular networks, based on global system for mobile communications (GSM) technology, were introduced in the early 1990s. Since then, GSM has become the dominant global 2G radio access standard. Almost 80% of today’s new subscriptions take place in one of the more than 460 cellular networks that use GSM technology. This growth has taken place simultaneously with the large experienced expansion of access to the Internet and its related multimedia services.
標簽： Performance Evolution GPRS EDGE GSM and
上傳時間： 2020-05-27
上傳用戶：shancjb
LTE-Advanced becomes a truly global standard for 4G cellular communications. Relay, as one of the key technologies of LTE-Advanced, can significantly extend the coverage, and improve the system throughput. LTE-A standards and tech- nologies were described in several recent books where the limited pages for relay feature prevent the detailed explanations of the technology. In this book, we tried to provide an in-depth description of LTE-A relay development. More specifically, significant portions are spent on relay channel modeling and potential technologies during the study item phase of the development, although some of those tech- nologies, such as Type 2 cooperative relay, multi-hop relay, relay with backhaul of carrier aggregation, were not standardized in Release 10 LTE.
標簽： LTE-Advanced Technology Relay
上傳時間： 2020-05-27
上傳用戶：shancjb
Multi-carrier modulation? Orthogonal Frequency Division Multi- plexing (OFDM) particularly? has been successfully applied to a wide variety of digital communications applications over the past several years. Although OFDM has been chosen as the physical layer standard for a diversity of important systems? the theory? algorithms? and implementation techniques remain subjects of current interest. This is clear from the high volume of papers appearing in technical journals and conferences.
標簽： COMMUNICATIONS MULTI-CARRIER DIGITAL
上傳時間： 2020-05-31
上傳用戶：shancjb
Wireless communication is witnessing tremendous growth with great proliferation of different standards covering wide ,local and personal area networks
標簽： Multi-standard Receivers Wireless CMOS
上傳時間： 2020-05-31
上傳用戶：shancjb
Software Radio (SR) is one of the most important emerging technologies for the future of wireless communication services. By moving radio functionality into software, it promises to give flexible radio systems that are multi-service, multi- standard, multi-band, reconfigurable and reprogrammable by software. Today’s radios are matched to a particular class of signals that are well defined bytheircarrierfrequencies,modulationformatsandbandwidths.Aradiotransmitter today can only up convert signals with well-defined bandwidths over defined center frequencies, while, on the other side of the communication chain, a radio receiver can only down convert well-defined signal bandwidths, transmitted over specified carrier frequencies.
上傳時間： 2020-06-01
上傳用戶：shancjb
This book is an outgrowth of the pioneering development work done by InterDigital Com- munication Corporation in 3rd Generation TDD WCDMA Technology. Many engineers and managers were involved in this development, which spanned a wide range of tech- nology areas, including system architecture, radio interface, radio modem design, radio resource management and hardware/software implementation. In addition, TDD WCDMA technology had many direct and indirect contributors across the globe in the context of the development of the 3GPP TDD WCDMA standard.
上傳時間： 2020-06-01
上傳用戶：shancjb
Although the origins of radio frequency based wireless networking can be traced back to the University of Hawaii’s ALOHANET research project in the 1970s, the key events that led to wireless networking becoming one of the fastest growing technologies of the early 21st century have been the ratification of the IEEE 802.11 standard in 1997, and the subsequent development of interoperability certification by the Wi-Fi Alliance (formerly WECA).
標簽： Networking Technology Wireless
上傳時間： 2020-06-01
上傳用戶：shancjb
The basic topic of this book is solving problems from system and control theory using convex optimization. We show that a wide variety of problems arising in system and control theory can be reduced to a handful of standard convex and quasiconvex optimization problems that involve matrix inequalities. For a few special cases there are “analytic solutions” to these problems, but our main point is that they can be solved numerically in all cases. These standard problems can be solved in polynomial- time (by, e.g., the ellipsoid algorithm of Shor, Nemirovskii, and Yudin), and so are tractable, at least in a theoretical sense. Recently developed interior-point methods for these standard problems have been found to be extremely efficient in practice. Therefore, we consider the original problems from system and control theory as solved.
標簽： Linear_Matrix_Inequalities_in_Sys tem
上傳時間： 2020-06-10
上傳用戶：shancjb
