相关干涉仪测向的定点数矩阵设计及FPGA验证  

Design of Fixed-point Matrix and FPGA Verification for Correlation Interferometer Direction Finding

作　　者：张承畅[1] 杨建鹏 罗元[1] 王富强 ZHANG Chengchang;YANG Jianpeng;LUO Yuan;WANG Fuqiang(School of Optoelectronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学光电工程学院,重庆400065

出　　处：《实验室研究与探索》2023年第9期31-34,39,共5页Research and Exploration In Laboratory

基　　金：教育部产学合作协同育人项目(220506528173307,202102278046);重庆市教育教学改革研究项目(213153);重庆邮电大学教育教学改革重点项目(XJG20103);大学生创新创业训练计划项目(S202210617052)。

摘　　要：在工程场地应用相关干涉仪进行测试很难为FPGA硬件提供验证信号,为解决此问题,使用Xilinx软硬件联合仿真工具System Generator设计了包含定点数矩阵运算功能的测向FPGA算法。其中复杂波形输入使用Simulink设计,经采样后进入FPGA内部,FPGA运算的结果采样后在Matlab中处理。板卡验证的结果与应用本方法仿真结果相差不大,表明该方法可以在工程开展前对相关干涉仪测向的FPGA算法进行仿真和硬件验证。To solve the problem that it is difficult to provide signals for FPGA hardware verification before the technical field test in the directional field of the correlation interferometer,the Xilinx software and hardware co-simulation tool System Generator is used to design and implement the directional FPGA algorithm including the fixed-point matrix operation function.The complex waveform inputs are designed in Simulink,sampled and fed into the FPGA internals,and the results of the FPGA algorithms are processed in Matlab.The results of the board verification are similar to the simulation,indicating that the modeling method can be used to simulate and verify the FPGA algorithms for the relevant interferometer direction finding before the project is implemented.

关 键 词：无线电测向 相关干涉仪 软硬件联合仿真 现场可编程门阵列 

分 类 号：TN971.1[电子电信—信号与信息处理]