基于FPGA IP核的脉冲压缩算法的实现  

Implementation of Pulse Compression Algorithm Based on FPGA IP Core

作　　者：孙娟[1] 韩涛[1] 李彬[1] 史晶[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2015年第2期63-67,共5页Space Electronic Technology

摘　　要：线性调频脉冲压缩信号具有作用距离远、抗干扰能力强的特点。为实现线性调频信号的数字脉冲压缩,文章提出了一种基于FPGA IP核的脉冲压缩设计方法。文章着重介绍了如何使用FPGA IP核来实现频域脉冲压缩,同时对使用流水线型或基2结构实现FFT算法的优缺点和适应性做了详细对比。实验结果表明,文章提出的脉冲压缩设计方法性能良好,便于工程实现。且该方法的参数设置灵活,可以简化FPGA软件设计,缩短研发周期。LFM pulse compression signal has the characteristics of far detection range and strong ability of anti-jam- ming. In order to implement the digital pulse compression of LFM signal, a design method of pulse compression based on FPGA IP core is proposed in this paper. By FPGA IP core, the method to realize pulse compression in frequency domain is introduced mainly in this paper. At the same time, the advantage, disadvantage and applicability of FFF algorithm are presented by comparing the FFT algorithm based on streaming I/O with the FFT algorithm based on radix_2. The practical results show that the design method has better performance and can be realized easily. Besides, the design method can set parameter flexibly, simplify FPGA design and shorten the period of research and development.

关 键 词：线性调频信号 IP核 脉冲压缩算法 匹配滤波器 

分 类 号：TN957.51[电子电信—信号与信息处理]