电讯技术2017，Vol.57Issue(4)：430-435,6.DOI:10.3969/j.issn.1001-893x.2017.04.011
基于AR功率谱和ZAM变换的FSK-BPSK复合信号参数估计
Parameter Estimation of FSK-BPSK Hybrid Modulation Signal Based on AR Power Spectrum and ZAM Transform
刘歌 1张旭洲 1汪洪艳1
作者信息
- 1. 空军航空大学 信息对抗系,长春 130022
- 折叠
摘要
Abstract
In order to solve the low accuracy problem of parameter estimation of Frequency Shift Keying-Binary Phase Shift Keying(FSK-BPSK) hybrid modulation signals,a method combining autoregressive model(AR) power spectrum with Zhao,Atlas,and Marks(ZAM) distribution is proposed.First,by using the feature that the AR power spectrum is not sensitive to the phase of the signal,the component numbers of the hopping frequency and hopping frequency sequence of FSK-BPSK signal are estimated by AR power spectrum.Then,by using the feature that the ZAM distribution is extremely sensitive to the phase changing,the phase-coded code width and frequency hopping code width are extracted by the ZAM transform.Simulation results show that the parameters of the signal can be estimated precisely when the signal-to-noise ratio(SNR) is not less than 0 dB.关键词
复合调制信号/参数估计/自回归模型功率谱/ZAM变换Key words
hybrid modulation signal/parameter estimation/autoregressive model(AR) power spectrum/ZAM transform分类
信息技术与安全科学引用本文复制引用
刘歌,张旭洲,汪洪艳..基于AR功率谱和ZAM变换的FSK-BPSK复合信号参数估计[J].电讯技术,2017,57(4):430-435,6.
