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
We have a group of N items (represented by integers from 1 to N), and we know that there is some total order defined for these items. You may assume that no two elements will be equal (for all a, b: a<b or b<a). However, it is expensive to compare two items. Your task is to make a number of comparisons, and then output the sorted order. The cost of determining if a < b is given by the bth integer of element a of costs (space delimited), which is the same as the ath integer of element b. Naturally, you will be judged on the total cost of the comparisons you make before outputting the sorted order. If your order is incorrect, you will receive a 0. Otherwise, your score will be opt/cost, where opt is the best cost anyone has achieved and cost is the total cost of the comparisons you make (so your score for a test case will be between 0 and 1). Your score for the problem will simply be the sum of your scores for the individual test cases.
标签： represented integers group items
上传时间： 2016-01-17
上传用户：jeffery
the code environment s C++. it is in image processing field. this code Read TIFF Image then it excute a Median Filter Classical on gray images. after that it Write TIFFU nsigned Char.
标签： code environment processing Image
上传时间： 2016-12-24
上传用户：xiaoxiang
VxWorks 6.6 BSP开发执导 This document describes, in general terms, the elements that make up a board support package [BSP], the requirements for a VxWorks BSP, and the general behavior of a BSP during the boot process. This document outlines the steps needed to port an existing BSP to a new hardware platform or to write a new VxWorks BSP for custom hardware using a reference BSP or template BSP as a starting point. It provides hints and tips for debugging a BSP and solving common BSP development problems. It also provides information on the BSP validation test suite [BSP VTS] that is used to assess the functionality of a VxWorks BSP.
标签： describes document elements VxWorks
上传时间： 2017-03-23
上传用户：磊子226
This book is for systems architects who are interested in building security into their applications. The book is designed to be useful to architects in three ways: as an introduction to security architecture, as a handbook on security issues for architecture review, and as a catalog of designs to look for within a security product.
标签： application architects interested building
上传时间： 2014-01-24
上传用户：xwd2010
) Compression using huffman code -with a number of bits k per code word -provide huffman table Huffman coding is optimal for a symbol-by-symbol coding with a known input probability distribution.This technique uses a variable-length code table for encoding a source symbol. The table is derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol .Huffman coding uses a specific method for representing each symbol, resulting in a prefix code that expresses the most common characters using shorter strings of bits than those used for less common source symbols.The Huffman coding is a procedure to generate a binary code tree.
标签： code Compression huffman provide
上传时间： 2017-05-30
上传用户：yuchunhai1990
A java application - processing which can be downloaded free from processing.org Here it uses a free library - OpenCV - made by intel. .. to convert all the pixels in an image - in fact in a movie - a capture from the webcam. If the color of a pixel is "higher" comparing to a threshold it turns black - otherwise it becomes white.
标签： processing application downloaded which
上传时间： 2014-01-15
上传用户：D&L37
The potential of solving real-time demanding industrial applications, using vision-based algorithms, drastically grew due to an increasing availability of computational power. In this thesis a novel real-time, vision-based Blackjack analysis system is presented. The embedding of the vision algorithms in a compound system of other information sources such as an electronic chip tray, reduces the vision task to detect cards and chips. Robust results are achieved by not just analyzing single frames but an image stream regarding game-ß ow informations. The requirements for such a system are a highly robust and adaptive behav- ior. This is motivated by the vital interest of casino entrepreneurs in a 100 statistical analysis of their offered gambling in order to support the business plan, measuring table and dealer performance and give accurate player rating. Extensive experiments show the robustness and applicability of the proposed system.
标签： applications vision-based algorithms industrial
上传时间： 2017-08-20
上传用户：liansi
It’s your first day in the lab.Undoubtedly you are experiencing a range of emotions: excitement, curiosity, anxiety. You will be working in this lab and with a group of people, as well as with your supervisor, for several years to come. This is the first day of a long commitment and, for some, a hard road ahead. Which is why it’s important to get off on the right foot.
标签： experiencing Undoubtedly excitement emotions
上传时间： 2017-09-14
上传用户：zhangyi99104144
Finally, after a great deal of effort and hard work, you have obtained the results you were trying to get for such a long time. You may be so busy (and tired) that you don’t even realize that you have indeed achieved a certain measure of success. Perhaps it will take a fewmore months before you can present your work at a conference or submit it to a scientific journal.
标签： you obtained Finally results
上传时间： 2014-09-10
上传用户：Avoid98
