北斗系統(tǒng)信號時域波形失真評估

康立; 盧曉春; 王雪; 賀成艷; 饒永南

doi:10.11999/JEIT170591

北斗系統(tǒng)信號時域波形失真評估

doi: 10.11999/JEIT170591 cstr: 32379.14.JEIT170591

基金項目:

國家自然科學基金(61501430)，中國科學院青年創(chuàng)新促進會基金

計量
- 文章訪問數(shù): 1702
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-07-03
- 修回日期: 2018-01-25
- 刊出日期: 2018-04-19

Navigation Signal Chip Domain Assessment on Beidou Navigation System

Funds:

The National Natural Science Foundation of China (61501430), Youth Innovation Promotion Association Foundation of Chinese Academy Sciences

摘要

摘要: 衛(wèi)星導航信號時域波形是空間信號質(zhì)量監(jiān)測和評估(SQM)的重要內(nèi)容，本文利用大口徑天線接收系統(tǒng)采集的離線數(shù)據(jù)對北斗IGSO-6衛(wèi)星B1頻點信號時域波形進行分析。首先提出利用基于碼相位平均方法求取高信噪比的時域波形，在此基礎上利用標準碼片波形相關技術提取出碼元波形。然后建立相關函數(shù)和碼元波形的統(tǒng)計理論聯(lián)系，利用碼元波形相關函數(shù)差分析信號邊沿特性，最后在時域波形上計算出所有北斗衛(wèi)星的數(shù)字失真量，詳細評估不同衛(wèi)星數(shù)字失真規(guī)律。
- 衛(wèi)星導航 /
- 時域波形 /
- 碼相位平均 /
- 標準碼片波形相關 /
- 數(shù)字失真
Abstract: Satellite navigation signal waveform is the key factor of signal-in-space quality monitoring. This study mainly focuses on signal waveforms analysis for BDS IGSO-6 frequency B1 by using data of big antenna receiving system. Firstly, code phase average method is proposed to get the high SNR signal waveform, and based on this way the standard chip shape correlator is utilized to extract code element chip. Then, theory between correlation function and code chip is constructed and signal edges characters by using code element chip correlation differences are analyzed. Finally, digital distortions of all BDS satellites are calculated and assessed in detail through signal waveform in time domain.
- Satellite navigation /
- Signal waveform /
- Code phase average /
- Standard chip shape correlator /
- Digital distortion

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參考文獻(16)

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