该函数是实现Costas环仿真的Matlab编程，具有较好的性能-this function is to achieve Costas Loop Simulation Matlab programming, with good performance

利用VB对GPRS无线数传模块进行编程。详细的介绍了编程的函数和编程的方法。有一对一的编程，也有一对多的编程-Using VB to the GPRS wireless module for programming. Detailed descr iption of the programming functions and programming methods. A one to one programming, there are one to many programming

GPS编程的常用函数，如84坐标转换，获取GPS秒等-GPS common programming functions, such as coordinate transformation 84, to obtain, such as GPS seconds