BDS--R soil moisture retrieving system using wireless transmission

ZHAO Fen; YAN Song-hua; CHEN Neng-cheng; HU De-zheng; ZHANG Xun-xie

doi:10.13873/J.1000-9787(2015)10-0079-04

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BDS--R soil moisture retrieving system using wireless transmission

更新时间：2025-09-11

- BDS--R soil moisture retrieving system using wireless transmission
- Vol. 34, Issue 10, Pages: 79-82(2015)
- 作者机构：
  
  1. 武汉大学电子信息学院
  2. 武汉大学测绘遥感信息工程国家重点实验室
  3. 中国科学院武汉物理与数学研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)10-0079-04
  CLC： TP79;S152.7
- Published：2015
- 稿件说明：
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[1]赵芬,严颂华,陈能成,胡德正,张训械.利用无线传输的BDS--R土壤湿度反演系统[J].传感器与微系统,2015,34(10):79-82.

ZHAO Fen, YAN Song-hua, CHEN Neng-cheng, et al. BDS--R soil moisture retrieving system using wireless transmission[J]. 2015, 34(10): 79-82.
[1]赵芬,严颂华,陈能成,胡德正,张训械.利用无线传输的BDS--R土壤湿度反演系统[J].传感器与微系统,2015,34(10):79-82. DOI： 10.13873/J.1000-9787(2015)10-0079-04.

ZHAO Fen, YAN Song-hua, CHEN Neng-cheng, et al. BDS--R soil moisture retrieving system using wireless transmission[J]. 2015, 34(10): 79-82. DOI： 10.13873/J.1000-9787(2015)10-0079-04.

摘要

针对野外地区土壤湿度监测时间长、数据采集量大的需求

提出了基于无线传输的BDS—R土壤湿度反演系统。以UM220—III N和GPRS DTU为核心构建了北斗信号数据处理与无线传输模块

将圆极化天线采集的北斗信号数据处理成NMEA 0183格式串行数据

并经GPRS与Internet传送至COMWAY无线串口服务器

再通过Microsoft Visual Studio 2008软件构建的数据存储软件提取服务器上的数据

并保存至本地磁盘。选取了连续1个月的北斗C05卫星信号信息进行反射系数法反演土壤湿度实验

反演结果与原位湿度值相关系数达0.69

平均相对误差为16.86%

表明系统工作可靠性强

适用于长期远距离的野外地区土壤湿度反演。

Abstract

Aiming at requirements of long time field area soil moisture monitoring and large quantity of data collection

soil moisture retrieving system

Bei Dou satellite system-reflectometer（ BDS—R） based on wireless transmission is proposed. Constituted by UM220—Ⅲ N and GPRS DTU modules as its core

Bei Dou signal processing and wireless data transmission modules are built up

Bei Dou signal are collected by circularly polarized antenna and processed into NMEA 0183 format serial data and transmitted to wireless serial server COMWAY via GPRS and the Internet. Log on serial server and use data saving software compiled by Microsoft Visual Studio 2008 software to extract data and save it into local disks. One month consecutive signal information of Bei Dou C05 satellite are selected for soil moisture inversion experiment by reflection coefficient method

correlation coefficient between inversion results and the in-situ humidity values reach to 0. 69

average relative error is 16. 86 %

which proves that reliability of the system is really good

it is suitable for long distance field area soil moisture inversion for a long time.

关键词

Keywords

references

GNSS-R测量地表土壤湿度的地基实验 [J]. 严颂华,龚健雅,张训械,李冻秀. 地球物理学报 . 2011(11)

基于GPRS的水质自动监测系统的设计 [J]. 陈军,盛占石,陈照章,孙俊,张兵. 传感器与微系统 . 2009(07)

用于无源雷达的GPS卫星信号性能分析 [J]. 杨进佩,刘中,朱晓华. 电子与信息学报 . 2007(05)

利用反射GPS信号遥感土壤湿度 [J]. 关止,赵凯,宋冬生. 地球科学进展 . 2006(07)

基于GPRS技术的远程数据传输系统的研究 [D]. 王璐. 山东大学 2008

Utilizing calibrated GPS reflected signals to estimate soil reflectivity and dielectric constant: Results from SMEX02 [J] . Stephen J. Katzberg,Omar Torres,Michael S. Grant,Dallas Masters. Remote Sensing of Environment . 2005 (1)

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