本章提供于Windows 操作系統設計Modbus 通信程序所需的基本子程 序，以Borland C++ Builder V5.0 所設計的Sample Porgram 提供讀者參考。 所有原始檔（source program）都存于隨書贈送的光盤片內。讀者必須了 解通信程序是需要高度與操作系統的API 相配合，各種資料型態的轉換， Multi-Thread 的運用，時間的掌控等事項，以C 語言為最適合的語言。
上傳時間： 2014-01-18
上傳用戶：asddsd
Fit a multivariate gaussian mixture by a cross-entropy method. Cross-Entropy is a powerfull tool to achieve stochastic multi-extremum optimization.
標簽： Cross-Entropy cross-entropy multivariate powerfull
上傳時間： 2014-12-20
上傳用戶：love_stanford
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.
標簽： investigates estimation frequency carrier
上傳時間： 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.
標簽： Structured interacts databases Language
上傳時間： 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.
標簽： describes the generate running
上傳時間： 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.
標簽： input-output the generated following
上傳時間： 2014-01-05
上傳用戶：royzhangsz
這是我自己寫的用于嵌入式設備的CGI程序，ANSI C編寫，嵌入式Linux中使用。這些CGI代碼是我在CGIC庫的基礎上加上了常用的一些外圍功能模塊函數，比如讀寫配置文件等。其中比較重要的是我自己實現的session控制、頁面模板方式（模板標簽替換）和web多語言版本的一種我自己的實現方法。請參閱cgi_functions.c、session.c和multi-language.c。
上傳時間： 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.
標簽： method reconstruction location proposed
上傳時間： 2016-02-04
上傳用戶：maizezhen
基于OFDM的無線寬帶系統仿真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.
標簽： simulator i.e. system-level link-level
上傳時間： 2016-03-15
上傳用戶：xsnjzljj
These tools are for use by developers so that they can create more robust applications. Especially of use to those developing multi-threaded applications in C++ with templates. Includes TCMalloc, heap-checker, heap-profiler and cpu-profiler. http://www.soft234.com
標簽： applications Especially developers create
上傳時間： 2013-12-17
上傳用戶：erkuizhang
