WLAN仿真－发送机 wlan No Comments 设置完系统参数后，开始产生发送数据。 1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。 2. QAM映射 3. 将数据映射到不同载波，形成OFDM符号 4. 产生pilot，并将pilot插入OFDM符号中 5. 加入dc和guard子载波 6. 进行ifft，将频域信号变到时域，并加入循环前缀 7. 对信号进行overlap window 8. 在时域产生Short preamble 9. 在时域产生long preamble 10. 将preamble和数据符号组成packet 11. 升采样 得到信道传输的数据Tx_signal_up 具体程序见附件 wlan_transmitter.m
上传时间： 2016-11-09
上传用户：exxxds
All people curious about how Linux works and why it is so efficient will find answers here. After reading the book, you will find your way through the many thousands of lines of code, distinguishing between crucial data structures and secondary ones—in Short, becoming a true Linux hacker.
标签： efficient curious answers people
上传时间： 2013-12-29
上传用户：lifangyuan12
The smspdulib library is intended for more transparent interaction with SMS PDU. This thought over hierarchy of classes will allow you to create new classes for other types of Short messages using the realized base functionality. At present, the following types of Short messages are supported: status report, SMS (with long (large) SMS parts support)
标签： interaction transparent smspdulib intended
上传时间： 2013-12-23
上传用户：小眼睛LSL
ResOrg 图形化管理Vc项目的资源ID的工具的源代码。 ResOrg - Manage and Renumber Resource Symbol IDs Introduction The Resource ID Organiser (ResOrg for Short) is an Add-in for Visual C++ designed to help overcome one of the most annoying (and unnecessary) chores of developing/maintaining Windows applications - maintaining resource symbol ID values.
标签： ResOrg Introduction Renumber Resource
上传时间： 2013-12-25
上传用户：dsgkjgkjg
OReilly.Java.Rmithis book provides strategies for working with serialization, threading, the RMI registry, sockets and socket factories, activation, dynamic class downloading, HTTP tunneling, distributed garbage collection, JNDI, and CORBA. In Short, a treasure trove of valuable RMI knowledge packed into one book.
标签： serialization strategies threading provides
上传时间： 2014-01-15
上传用户：731140412
关于FFT的一个例子，Short time FFT with octave smooth by Matthes
标签： FFT
上传时间： 2014-01-19
上传用户：曹云鹏
This book uses the Python language to teach pro - gramming concepts and problem -solving skills, without assuming any previous program- ming experience. With easy-to-understand examples, pseudocode, flowcharts, and other tools, the student learns how to design the logic of programs and then implement those programs using Python. This book is ideal for an introductory programming course or a programming logic and design course using Python as the language. As with all the boolts in the Starting Out With series, the hallmark of this text is its clear, friendly, and easy -to-understand writing. In addition, it is rich in example programs that are concise and practical. The programs in this book include Short examples that highlight specific programming topics, as well as more involved examples that focus on problem solving. Each chapter provides one or more case studies that provide step -by-step analysis of a specific problem and shows the student how to solve it.
标签： language gramming concepts problem
上传时间： 2014-01-12
上传用户：独孤求源
Huffman codes In telecommunication, how do we represent a set of messages, each with an access frequency, by a sequence of 0’s and 1’s? To minimize the transmission and decoding costs, we may use Short strings to represent more frequently used messages. This problem can by solved by using an extended binary tree which is used in the 2- way merging problem.
标签： telecommunication represent messages Huffman
上传时间： 2014-01-04
上传用户：x4587
介绍计算机上实现gsm modem短消息收发的模式，描述gsm modem PDU 模式，包括PDU 模式下的gsm modem模块UCS2 编码、解码原理，以及gsm modem发送与接收PDU 串的编制方式， VB 中的MSCOMM 控件，实现gsm modem短消息收发的核心内容。-briefed on computer modem gsm SMS transceiver model, described GSM modem PDU models, including the PDU mode GSM modem module UCS2 encoding, decoding principle, and GSM modems send and receive PDU Series presentation, the VB MSCOMM Control and achieve Short GSM modem news transceiver core content
上传时间： 2017-03-10
上传用户：cxl274287265
A fingerprint recognizing system is built with two principal components: the fingerprint administrator and the fingerprint recognizer. Fingerprints are identified by their special features such as ridge endings, ridge bifurcation, Short ridges, and ridge enclosures, which are collectively called the minutiae.
标签： fingerprint recognizing administra components
上传时间： 2013-12-10
上传用户：czl10052678
