GNSS模拟器与采集回放仪数据质量分析

Gnss Simulator and Data Quality Analysis of Data Acquisition and Playback Equipment

文章使用接收机对模拟器在正常状态、开启电离层、开启对流层、开启多径模拟功能、开启20dB功率增益的5种状态下进行了载噪比的数据质量分析,并使用GNSS采集回放仪将模拟的卫星信号进行采集播发及载噪比分析。通过试验分析,表明通过采集回放仪播放模拟器信号不会影响GNSS信号数据质量,在接收机的校准过程中可通过采集回放仪播放模拟器信号,提升校准效率。

This article uses a receiver to analyze the data quality of the carrier to noise ratio of the simulator infive states:normal state,ionosphere on,troposphere on,multipath simulation function on,and 20dB power gain on.The simulated satellite signals are also collected and broadcasted using a GNSS acquisition and playback instrument for carrier to noise ratio analysis.Through experimental analysis,it has been shown that playing simulator signals through the playback device does not affect the quality of GNSS signal data.During the calibration process of the receiver,it is possible to improve calibration efficiency by collecting simulator signals from the playback device.