一种调频发射机数字显示器的设计方法

基于一般调频发射机数字显示器的设计,本设计在硬件和软件上都进行了改良,并通过了实验室仿真和实践检验:硬件上,利用最新的PLL(Phase-Locked Loop)锁相技术,确保无频率漂移现象产生;还采用单键盘步进操作,使用骤简单易行。软件上,所有运算均采用整数运算,比一般的浮点运算稳定可靠;所有频率数据均列表存储,可直接调用,大大节省了运算时间。

The Design of FM Transmitter Display

FM transmitters based on the general design of digital display. In the design, both hardware and software were modified and adopted a laboratory simulation and practical testing: On the hardware, the latest PLL phase lock technology was used, to ensure that no frequency drift phenomenon; Single keyboard operation was used, to control it easily. On the software, integer operation was used, to avoid the complex floating-point operations and improve the stability. All frequency data were stored in a list, which can be called directly and saved calculating time greatly.