This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.
標(biāo)簽： investigates estimation frequency carrier
上傳時(shí)間： 2015-12-30
上傳用戶：ls530720646
Anyone who interacts with today s modern databases needs to know SQL (Structured Query Language), the standard language for generating, manipulating, and retrieving database information. In recent years, the dramatic rise in the popularity of relational databases and multi-user databases has fueled a healthy demand for application developers and others who can write SQL code efficiently and correctly.
標(biāo)簽： Structured interacts databases Language
上傳時(shí)間： 2016-01-02
上傳用戶：qlpqlq
This zip file describes how to generate a clock on the PCK pin using the PMC running under AT91RM3400DK with Green hills 3.6.1 Multi® 2000 Software Tool. Includes main.html file for help.
標(biāo)簽： describes the generate running
上傳時(shí)間： 2013-12-11
上傳用戶：hgy9473
To estimate the input-output mapping with inputs x ％ and outputs y generated by the following nonlinear, ％ nonstationary state space model: ％ x(t+1) = 0.5x(t) + [25x(t)]/[(1+x(t))^(2)] ％ + 8cos(1.2t) + process noise ％ y(t) = x(t)^(2) / 20 + 6 squareWave(0.05(t-1)) + 3 ％ + time varying measurement noise ％ using a multi-layer perceptron (MLP) and both the EKF and ％ the hybrid importance-samping resampling (SIR) algorithm.
標(biāo)簽： input-output the generated following
上傳時(shí)間： 2014-01-05
上傳用戶：royzhangsz
『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
標(biāo)簽： ready-to-use embedded building complete
上傳時(shí)間： 2014-12-04
上傳用戶：阿四AIR
這是我自己寫的用于嵌入式設(shè)備的CGI程序，ANSI C編寫，嵌入式Linux中使用。這些CGI代碼是我在CGIC庫的基礎(chǔ)上加上了常用的一些外圍功能模塊函數(shù)，比如讀寫配置文件等。其中比較重要的是我自己實(shí)現(xiàn)的session控制、頁面模板方式（模板標(biāo)簽替換）和web多語言版本的一種我自己的實(shí)現(xiàn)方法。請參閱cgi_functions.c、session.c和multi-language.c。
標(biāo)簽： CGI 嵌入式設(shè)備 程序
上傳時(shí)間： 2014-01-15
上傳用戶：520
A new cable fault location method based on wavelet reconstruction is proposed. In this method the difference between the currents of faulty phase and sound phase under the high voltage pulse excitation is used as the measured signal and is decomposed in multi-scale by wavelet transform, then reconstructed in single scale. Comparing with traditional fault location method by travelling wave, the presented method will not be interfered by the reflected wave from the branch joint of cables or from other positions where the impedances are not matched and not be influenced by fault types, otherwise, the reflected waves can be recognized even the faulty position is near to the measuring terminal, at the same time, the influence of the wave speed uncertainty can be reduced. The correctness of the proposed method is proved by simulation results.
標(biāo)簽： method reconstruction location proposed
上傳時(shí)間： 2016-02-04
上傳用戶：maizezhen
AutoBoot is a generic boot loader that automatically locates, loads, and executes object files from multiple types of media. AutoBoot provides a simple, fast, and functional means of loading an OS image while maintaining a small Flash memory footprint. This binary release contains a stand-alone version of AutoBoot for the DbAu1200 development board, designed to replace the YAMON boot loader.
標(biāo)簽： automatically AutoBoot executes generic
上傳時(shí)間： 2014-01-14
上傳用戶：海陸空653
Foundations of Python Network Programming leads readers through every aspect of client and server programming with Python. Python is a new and innovative scripting language. It is set to replace Perl as the programming language of choice for scripters and for serious application developers wanting a feature rich yet simple language to deploy their products in. This book features extensive examples that not only demonstrate important concepts and practices, but also provide a cadre of fully-functional stand-alone programs. Readers can use the examples as the basis and building blocks for their own software
標(biāo)簽： Foundations Programming Network readers
上傳時(shí)間： 2013-12-16
上傳用戶：小碼農(nóng)lz
基于OFDM的無線寬帶系統(tǒng)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.
標(biāo)簽： simulator i.e. system-level link-level
上傳時(shí)間： 2016-03-15
上傳用戶：xsnjzljj
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