time code signal

Make Pulse Time Code Signal of Underwater Acoustic Remote-Controlled Command by Using Single Board Computer

用单片机实现水声遥控指令的脉冲周期编码（PTC）信号

This method plays an important role in the detection of communication signal such as multi-frequency modulation signal and time-frequency code signal.

它可以把多个正弦信号相干累加到一条谱线上，从而可以在很低信噪比下有效检测信号，在多频率调制和时频二维编码等通信信号检测上有重要应用价值。

The Design and Implement of the Low Frequency Time Code's Simulation Signal Source

低频时码信号模拟器的设计与实现

In software, we transplant the real time operation system of uC/ OS-II, write the driver source code of various modules and the algorithm source code of digital signal processing.

在软件上，完成了实时操作系统μC／OS&Ⅱ在TMS320LF2407A移植，A／D采样模块、LCD显示模块和CF卡数据存储模块驱动程序的编写，信号处理算法程序的编写等。

Research of postprocessing for time-frequency code signal

时频编码信号的后置处理研究

Acquiring signal quickly and shortening acquisition time in the cold case are the key technologies of high dynamic GPS receiver. Moreover, fast acquisition of C/ A code is the base of code tracking and carrier acquisition and tracking.

尽量缩短盲捕时间，快速捕获到信号，是研制高动态GPS接收机技术的关键，而GPS信号CA码的快速捕获是码跟踪和载波捕获与跟踪的基础。

The GPS IRIG-B code time system encapsulates the GPS satellite signal and modernized IRIG-B ( B type format of Inter-Range Instrumentation Group) serial time code and connect them to the computer through a PCI bus, thus offering accurate timing service.

GPSIRIG-B码时间系统把GPS卫星信号和现代化靶场间通用的IRIG-B（Inter-RangeInstrumentationGroup，靶场仪器组B型格式）串行时间码封装于一体，通过PCI总线与计算机联系起来，提供高精度的定时服务。

A New Interface of GPS Time Signal in B code Device

B码设备中的GPS时间信号接口

According to the international B-code format, B-Code generation part outputs B-code signal which is corresponding to current time which is generated form a pre-defined data through ISA bus.

码产生模块从某个时间初始值开始运行产生时间信息，并按照国际通用的B码格式，产生出与当前时间对应的B码信号，其中运行初始值可由微机通过ISA总线任意设置；