This code was used to produce simulation results described in: Using Directional Antennas to Prevent Wormhole Attacks Lingxuan Hu and David Evans. Network and Distributed System Security Symposium, San Diego, 5-6 February 2004.
标签： Directional simulation described Antennas
上传时间： 2014-12-06
上传用户：xieguodong1234
Carrier-phase synchronization can be approached in a general manner by estimating the multiplicative distortion (MD) to which a baseband received signal in an RF or coherent optical transmission system is subjected. This paper presents a unified modeling and estimation of the MD in finite-alphabet digital communication systems. A simple form of MD is the camer phase exp GO) which has to be estimated and compensated for in a coherent receiver. A more general case with fading must, however, allow for amplitude as well as phase variations of the MD. We assume a state-variable model for the MD and generally obtain a nonlinear estimation problem with additional randomly-varying system parameters such as received signal power, frequency offset, and Doppler spread. An extended Kalman filter is then applied as a near-optimal solution to the adaptive MD and channel parameter estimation problem. Examples are given to show the use and some advantages of this scheme.
标签： synchronization Carrier-phase multiplicativ approached
上传时间： 2013-11-28
上传用户：windwolf2000
f your application uses MFC in a shared DLL, and your application is in a language other than the operating system s current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don t do this, some of the UI elements of your application will remain in the language of the operating system.
标签： application your language shared
上传时间： 2013-12-24
上传用户：thuyenvinh
Hidden_Markov_model_for_automatic_speech_recognition This code implements in C++ a basic left-right hidden Markov model and corresponding Baum-Welch (ML) training algorithm. It is meant as an example of the HMM algorithms described by L.Rabiner (1) and others. Serious students are directed to the sources listed below for a theoretical description of the algorithm. KF Lee (2) offers an especially good tutorial of how to build a speech recognition system using hidden Markov models.
标签： Hidden_Markov_model_for_automatic speech_recognition implements left-right
上传时间： 2016-01-23
上传用户：569342831
『embedded systems building blocks, complete and ready-to-use modules in C, second edition』 - This second edition features revisions that support the latest version of the author s popular operating system and book, MicroC/OS-II - Complete and ready-to-use modules in C Get a clear explanation of functional code modules and microcontroller theory
标签： ready-to-use embedded building complete
上传时间： 2014-12-04
上传用户：阿四AIR
jobo, famous crawler open source which is implemented by java. used in many big websites. You will need a Java Runtime Environment 1.3 or later (on many System Java 1.2 is installed, it will NOT work !).
标签： implemented websites crawler famous
上传时间： 2016-02-04
上传用户：asasasas
find the information about a host with the DNS retrieving system calls, such as gethostbyname() and gethostbyaddr(). (2) All the required information are in the hostent structure. (3) All the aliases and IP addresses of the host is stored in the hostent structure using linked list (链表).
标签： gethostbyname information retrieving the
上传时间： 2016-02-21
上传用户：13517191407
This program shows the distributions of the co-channel interference in forward and reverse link in the cellular mobile system with cluster size N, when the mobile subscriber (MS) is at random positions of a cell.
标签： distributions interference co-channel the
上传时间： 2014-01-15
上传用户：z754970244
CANopen is a networking system based on the CAN serial bus. CANopen assumes that the device’s hardware has a CAN transceiver and CAN controller as specified in ISO 11898. CANopen profile family specifies standardized communication mechanisms and device functionality. The profile family is available and maintained by CAN in Automation (CiA), the international users’ and manufacturers’ group and may be implemented license-free.
标签： CANopen networking the assumes
上传时间： 2013-12-26
上传用户：q123321
基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.
标签： simulator i.e. system-level link-level
上传时间： 2016-03-15
上传用户：xsnjzljj
