demonstration of the realization of asynchronous communication, asynchronous com...

g704文档，无密码，自由下载-g704 document,no password,free download

Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels 一篇信道估计的经典文章-Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency se lective fading channels a channel estimation of the classic article

四方通信规约处理包括101 103 103 104 CDT DNP SC1801 CSC2000等

射频卡读卡程序,射频IC卡识别技术，通常由载有密码的射频IC卡来代替传统的键盘密码。读卡模块读出密码后，即产生输出电信号，继而驱动执行机构动作，或将密码（如卡号）送给外围对接设备（如电脑或单片机等）。采用射频卡读卡模块及感应体构成的特定系统中，因射频卡内码信号唯一且不可复制，因此射频卡不仅杜绝了非法复制密码，还为各种控制采用信息化管理创造了条件。-RF card reader procedure, radio frequency identification technology IC cards, usually containing the password from the RF IC cards to replace the traditional keyboard password. Reader module read out a password, as a result, the output signal, and then drive the implementation agency action, or passwords (such as logging) gave the external docking equipment (such as computer or microcontroller, etc.). RF card reader module consisting of sensors and the specific system, RF signal code card but not the only copy, RF Card not only prevents illegal copying passwords, but also controls the use of information management to create the conditions.

j2me_nokia_flash打企鹅手机版-j2me_nokia_flash fight Penguin edition phone

一个圆周卷积的代码~调用形式为y=juanji(h,x1,M) 其中，h和x1为输入，h为滤波器系数，x1为输入采样信号，输出为y,M为输入信号x1的长度。-A circular convolution of the code to call the form of y = juanji (h, x1, M) of them, h, and x1 for the input, h for the filter coefficient, x1 sampling input signals, output y, M for the input signal x1 length.

802.11系统PCF机制详细介绍论文，非常清楚。-a good paper described the PCF of 802.11 system.

COM编程入门知识!对COM的初步了解!-portal COM programming knowledge! COM to the preliminary understanding!

利用J2ME显示ALERT的实例-use J2ME examples show ALERT

学通讯电子工程的必会的知识之一,打开看看吧!-electronic communications school project will be one of the knowledge, open look!