Frequency-hopping Signals Analysis Based on FPGA

摘要：

　　A method which bases on FPGA to realize the frequency-hopping (FH) signal analysis system is proposed.It designs a Radix-4 DIT FFT processing unit circuit firstly,then makes a Short-Time Fourier Transform(STFT) to FH signal and gets spectrum amplitude values.According to the features of the spectrum amplitude structure,we can obtain a non-linear mapping method which makes spectrum amplitude display more accurate,make a non-linear mapping transform of spectrum amplitude values,and get signal spectrum diagram of pseudo color index results.At last output the signal spectrum diagram of pseudo color displayed on VGA.Analysis Flt signals and compare with Matlab simulation results,we can see that this design method is correct.

关键词： FPGA Frequency-Hopping(FH) STFT nonlinear transform pseudo-color

作者: Dong Pei Zhongxing Tao Huixin Pei Lijun Chen Yan Gao

作者单位: College of physics and Electronic Engineering,Northwest Normal University Lanzhou, 730070, Gansu, China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 466-469

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）