相控阵雷达信号处理器的FPGA设计与实现
发布时间：2018-07-15 07:26
【摘要】：有源相控阵雷达由于波束指向变化迅速、干扰抑制性能优越和信号处理方式灵活而获得了广泛的应用。雷达信号处理器是有源相控阵雷达的不可或缺的部分。随着DSP和FPGA的运算能力和存储器资源的提高,雷达数字信号处理技术在工程实现领域发展迅速。 本文以某有源相控阵雷达为背景,在基于FPGA Kintex7+DSP TMS320C6678结构的雷达信号处理器上,通过FPGA编程实现了信号处理器的相应功能。在高脉冲重复频率脉冲多普勒(HPRF-PD)模式下,在FPGA上完成了和波束宽带信号的匹配滤波和距离跟踪相关处理以及窄带和波束的速度搜索处理；在线性调频脉压(LFM)模式下,完成了和差三通道信号的脉冲压缩以及256个周期的MTD处理；在线性调频连续波(LFMCW)模式下,实现了上扫频周期和下扫频周期差拍信号的FFT处理和64个周期的MTD处理,并通过SRIO高速接口将信号处理数据传送至DSP。 在信号处理器的硬件平台上对FPGA各个处理模块的功能进行了调试和验证,并与matlab上处理的结果进行了对比。该FPGA相控阵雷达信号处理模块能够满足实时处理要求,为信号处理器整体功能的实现提供了保证。
[Abstract]:The radar signal processor is an indispensable part of active phased array radar due to the rapid change of beam pointing , excellent interference suppression performance and flexible signal processing mode . With the operation ability of DSP and FPGA and the improvement of memory resources , radar digital signal processing technology has developed rapidly in the field of engineering realization .
In this paper , based on FPGA Kintex7 + DSP TMS320C6678 , the corresponding function of the signal processor is realized by FPGA programming based on FPGA Kintex7 + DSP TMS320C6678 . In high pulse repetition frequency pulse Doppler ( HPRF - PD ) mode , the matching filtering and distance tracking correlation processing of the beam wideband signal and the speed searching process of narrow band and beam are completed on FPGA .
The pulse compression of three channel signals and the MTD processing of 256 cycles are completed in the chirp mode .
In the linear frequency modulation continuous wave ( LFMCW ) mode , the FFT processing and the 64 - cycle MTD processing of the upper frequency sweep period and the lower frequency sweep period beat signal are realized , and the signal processing data is transmitted to the DSP through the Samp high - speed interface .
The function of each processing module of FPGA is debugged and verified on the hardware platform of the signal processor , and compared with the result processed on matlab . The FPGA phased array radar signal processing module can meet the real - time processing requirements , and provide the guarantee for the realization of the whole function of the signal processor .
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN958.92
本文编号：2123306
[Abstract]:The radar signal processor is an indispensable part of active phased array radar due to the rapid change of beam pointing , excellent interference suppression performance and flexible signal processing mode . With the operation ability of DSP and FPGA and the improvement of memory resources , radar digital signal processing technology has developed rapidly in the field of engineering realization .
In this paper , based on FPGA Kintex7 + DSP TMS320C6678 , the corresponding function of the signal processor is realized by FPGA programming based on FPGA Kintex7 + DSP TMS320C6678 . In high pulse repetition frequency pulse Doppler ( HPRF - PD ) mode , the matching filtering and distance tracking correlation processing of the beam wideband signal and the speed searching process of narrow band and beam are completed on FPGA .
The pulse compression of three channel signals and the MTD processing of 256 cycles are completed in the chirp mode .
In the linear frequency modulation continuous wave ( LFMCW ) mode , the FFT processing and the 64 - cycle MTD processing of the upper frequency sweep period and the lower frequency sweep period beat signal are realized , and the signal processing data is transmitted to the DSP through the Samp high - speed interface .
The function of each processing module of FPGA is debugged and verified on the hardware platform of the signal processor , and compared with the result processed on matlab . The FPGA phased array radar signal processing module can meet the real - time processing requirements , and provide the guarantee for the realization of the whole function of the signal processor .
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN958.92
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