利用串口方式读取数据库，对于实时监测系统有帮助

使用nntp协议实现文件断点续传的程序- Uses procedure which the nntp agreement realization document break point continues passes on

通信系统中基于MATLAB的四相移相键控调制的仿真-MATLAB-based communication system of the four-phase phase shift keying modulation simulation

The dynamics of orbit uncertainty in an unstable orbital environment are discussed with specific application to the orbit determination of a halo orbit about the Earth{Sun L1 point. This article documents a simplified orbit determination covariance program developed under Telecommunications and Mission Operations Division Technology support. The program is ideally suited to investigate spacecraft trajectory navigation in challenging environments, where the basic dynamics of the trajectory can no longer be modeled using near-Keplerian motion.

开源ZigBee 协议栈，提供给大家学习-revenue ZigBee protocol stack, provides us with learning

MARVELL processor mobile phone

本文在两片采用不同主频的ＰＩＣ单片机（Ａ机时钟频率为６ＭＨｚ，使用口线ＲＢ６；Ｂ机时钟频率为４ＭＨｚ，使用口线ＲＢ４）之间实现异步通讯-In this paper, two different frequency of the PIC Singlechip (A machine clock frequency of 6MHz, the use of the mouth line RB6 B machine clock frequency of 4MHz, the use of the mouth line RB4) asynchronous communication between

在本计划中，将考虑高度分散的环境；

上网计时的程序，可以知道上网用了多长时间，记录并显示出来。-Internet time the procedure can use the Internet to know how long the record and displayed.

本程序是和AB公司的SLC500系列PLC进行通讯,可以和RSLINX卡进行OPC方式的通讯.-procedures and the company AB SLC500 series PLC communications, can RSLINX cards OPC way communications.

第 4 部分卫星通信：信号畸变和错误他们与沟通的关系通道规格通信问题信号格式和扭曲信号错误相位噪声群时延失真振幅失真联合的信号扭曲邻频道干扰时间域效应摘要