| 高噪声背景下的罗兰-C信号相位编码识别研究 |
| |
| 引用本文： | 林洪文,周新力,金慧琴,胡昊.高噪声背景下的罗兰-C信号相位编码识别研究[J].舰船电子工程,2012(7):51-54. |
| |
| 作者姓名： | 林洪文 周新力 金慧琴 胡昊 |
| |
| 作者单位： | 海军航空工程学院电子信息工程系 |
| |
| 基金项目： | 国家自然科学基金项目(编号:No.61102167)资助 |
| |
| 摘 要： | 针对高噪声严重影响罗兰-C接收机的信号处理过程中脉冲初相位识别的情况,分析了基于全相位谱分析（apFFT）的罗兰-C载波信号初相位识别原理,对罗兰-C接收信号在噪声背景下的初相位识别进行了蒙特卡洛仿真和数据分析,结果表明该方法在高噪声背景下无需降噪就能够较准确地识别出罗兰-C载波信号的初相位,并准确地识别出相位编码,可直接应用于现代增强型罗兰接收机。
|
| 关 键 词： | 无线电导航 罗兰-C 相位编码识别 全相位谱分析 高噪声 蒙特卡洛仿真 |
Research on Phase Coding Identification of Loran-C Signal in Strong Noise Environment |
| |
| LIN Hongwen,ZHOU Xinli,JIN Huiqin,HU Hao.Research on Phase Coding Identification of Loran-C Signal in Strong Noise Environment[J].Ship Electronic Engineering,2012(7):51-54. |
| |
| Authors: | LIN Hongwen ZHOU Xinli JIN Huiqin HU Hao |
| |
| Institution: | (Department of Electronics and Information Engineering,Naval Aeronautical and Astronautical University,Yantai 264001) |
| |
| Abstract: | The loran-C receiver may fail to identify phase code of the Loran-C pulse in strong noise environment.The identification principle of the Loran-C carrier signal initial phase based on all-phase Fast Fourier Transform(apFFT) spectrum analysis is analyzed on details.After studing on the method for Phase coding identification of Loran-C signal with strong noise based on apFFT,Monte Carlo simulation of the new phase measuring method is completed with MATLAB,quantitative analysis showing that the method based on apFFT can estimate the initial phase of carrier wave in strong noise environment without any steps for eliminating noise,identify the phase code of the Loran-C pulse properly,and it can be introduced to the modern eloran receivers. |
| |
| Keywords: | radio navigation Loran-C phase coding identification all-phase FFT strong noise Monte Carlo simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
