南京理工大学学报（自然科学版）2012，Vol.36Issue(2)：328-331,4.
脉冲噪声下基于Robust STFT的LFM信号检测与参数估计
Robust STFT-based Detection and Parameter Estimation of LFM Signal in Impulsive Noise
陈文武 1蔡征宇 1陈如山 1赵兆1
作者信息
- 1. 南京理工大学电子工程与光电技术学院,江苏南京210094
- 折叠
摘要
Abstract
The conventional time-frequency-based methods for the linear frequency modulated ( LFM ) signals detection and parameter estimation behave poorly in the impulse noise environment. Based on the robust short-time Fourier transform ( STFT) , a new method being no sensitive to impulse noises is presented. The robust STFT of the LFM signal corrupted by an impulse noise is calculated. Due to the resilience of the robust STFT to the impulse noise, the oblique line time-frequency features of the LFM signal is preserved. The following signal detection and parameter estimation can be implemented based on the line integral of the Radon transform. The simulation results show the effectiveness of the presented method.关键词
线性调频信号/脉冲噪声/鲁棒短时傅里叶变换/Radon变换/参数估计Key words
linear frequency modulated signal/ impulsive noises/ robust short-time Fourier transform/ Radon transform/ parameter estimation分类
信息技术与安全科学引用本文复制引用
陈文武,蔡征宇,陈如山,赵兆..脉冲噪声下基于Robust STFT的LFM信号检测与参数估计[J].南京理工大学学报（自然科学版）,2012,36(2):328-331,4.
