舰船电子工程2019，Vol.39Issue(8)：83-86,198,5.DOI:10.3969/j.issn.1672-9730.2019.08.021
基于数据辅助的短波突发通信无偏信噪比估计
Unbiased SNR Estimation Based on Pilot Assisted in HF Burst Communication
万民 1丁昊成 2付睿 2游行远2
作者信息
- 1. 91404部队 秦皇岛 066000
- 2. 武汉船舶通信研究所 武汉 430079
- 折叠
摘要
Abstract
HF communication has been widely used in military communication due to its economy,flexibility,adaptability and war destructiveness. Signal-to-noise ratio(SNR)is an important measurement index of communication channel,which directly guides the formulation of communication strategy. On the study of HF burst communication,combining with the existing research foundation of SNR estimation algorithm,an unbiased SNR estimation algorithm based on non-channel-estimation is proposed,and the mathematical derivation is carried out under fading channel. Finally,according to the theory of SNR estimation accuracy prob?lems and the ability to resist frequency offset,the existing algorithms and the algorithms are compared in this paper. Simulation re?sults show that the unbiased estimation algorithm have smaller estimation bias and variance.关键词
信噪比估计/抗频偏/无偏估计Key words
SNR estimation/resist frequency offset/unbiased estimation分类
信息技术与安全科学引用本文复制引用
万民,丁昊成,付睿,游行远..基于数据辅助的短波突发通信无偏信噪比估计[J].舰船电子工程,2019,39(8):83-86,198,5.
