军民两用的微波中频信号源的设计  

The design of microwave frequency source of dual-use

作　　者：刘颖[1] 

机构地区：[1]四川信息职业技术学院,四川广元608040

出　　处：《自动化与仪器仪表》2017年第5期79-81,共3页Automation & Instrumentation

基　　金：国家自然科学基金(11301291)基于sieve bootstrap方法的长记忆过程变点研究与应用

摘　　要：为了实现可军民两用的微波中频信号源的设计,以AD9914为核心,配合射频电路、锁相环电路等外围硬件,通过计算机串口控制中频信号源,通过单片机接收控制指令并将指令译码后送到FPGA,产生相应的控制时序和对应的控制字,通过SPI总线送到核心芯片AD9914,以产生相应频点的各类调频信号。该信号源瞬时工作带宽可超过1000MHz,在电子信息产业领域应用前景广阔,市场潜力巨大^([1])。In order to realize the design of use microwave intermediate frequency（IF） signal source. AD9914 as core , with the radio frequency（RF） circuit , phase locked-loop circuit and other peripheral hardware is used in this design. In order to produce controlling time - series and control word, IF signal source is controlled through the computer serial port , and control in- structions are received ,decoded and sent to FPGA. then the control time-series and control word are sent to the core chip AD9914 through SPI bus. Various types of frequency modulation（ FM ） signal of the corresponding frequency point are produced finally. The instantaneous working bandwidth of the signal source, which could be more than 1000MHZ, would have a huge market with big potential and wide prospect in the electronic information area.

关 键 词：AD9914 FPGA控制 单片机 

分 类 号：TP32[自动化与计算机技术—计算机系统结构]