机载GNSS-R海面风场信号处理技术研究
发布时间：2018-11-03 14:32
【摘要】：研究GNSS海面散射信号相关功率,对反演海面风速具有非常重要的作用。针对低信噪比下,传统的方法不能成功捕获卫星信号,无法得到海面散射信号相关功率的问题,提出一种延长相干积分时间来获得海面散射信号相关功率的方法,并进行了仿真。将仿真结果与传统方法的仿真结果进行对比分析,发现该方法可以捕获到卫星信号,提高了接收机的灵敏度并准确绘制了海面散射信号相关功率波形图。
[Abstract]:It is very important to study the correlation power of GNSS sea surface scattering signal for retrieving the sea surface wind speed. In order to solve the problem that the traditional method can not capture satellite signal successfully and get the correlation power of sea surface scattering signal under low SNR, a method is proposed to extend the time of coherent integration to obtain the correlation power of sea surface scattering signal. The simulation is carried out. By comparing the simulation results with those of the traditional methods, it is found that the proposed method can capture satellite signals, improve the sensitivity of the receiver and accurately draw the correlation power waveform of the sea surface scattering signals.
【作者单位】： 西安邮电大学通信与信息工程学院;中国空间技术研究院西安分院;
【基金】：陕西省自然科学基础研究计划项目(2016JQ6033)
【分类号】：TN967.1
本文编号：2308067
[Abstract]:It is very important to study the correlation power of GNSS sea surface scattering signal for retrieving the sea surface wind speed. In order to solve the problem that the traditional method can not capture satellite signal successfully and get the correlation power of sea surface scattering signal under low SNR, a method is proposed to extend the time of coherent integration to obtain the correlation power of sea surface scattering signal. The simulation is carried out. By comparing the simulation results with those of the traditional methods, it is found that the proposed method can capture satellite signals, improve the sensitivity of the receiver and accurately draw the correlation power waveform of the sea surface scattering signals.
【作者单位】： 西安邮电大学通信与信息工程学院;中国空间技术研究院西安分院;
【基金】：陕西省自然科学基础研究计划项目(2016JQ6033)
【分类号】：TN967.1
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