基于FPGA的AD9915控制设计

为了满足雷达对信号源的质量要求，设计了一种基于FPGA（现场可编程门阵列）+DDS（直接数字式频率合成器） 的控制架构。根据AD9915的特点设计了控制系统的硬件结构并给出了FPGA的软件控制流程。通过FPGA控制DDS芯片产生700MHZ到740MHZ之间的扫频信号，证明了输出波形可满足雷达的性能需求。

Design of AD9915 Oriented Control System based on FPGA

In order to satisfy the quality of the signal source in radar system, in this paper, an AD9915 oriented control system was proposed based on FPGA. The hardware of the control system was designed according to the structure of AD9915. And the designed flowchart of corresponding software is well illustrated. Finally, according to the generated sweep signal between 700MHZ and 740 MHZ through FPGA controlled DDS chip, it fully demonstrates that the proposed control system can meet the requirements of radar.