组网测试设备时延修正方法研究

Research on Time Delay Correction Method of Networking Test Equipment

针对精确制导武器、无人机等试验中采用光学、雷达、GPS等设备组网测试时,由于设备同步、通信传输和数据处理产生时延对测试引导精度和可靠性严重影响的问题,提出了一种全网时间同步校准、准确获取设备时延和采用最小二乘法精确修正时延的方法,建立了时延修正模型。试验应用表明:该方法能有效提升组网设备测试引导精度、平稳性和可靠性,为远距离、高精度外弹道参数测量提供了有力的技术支持。

In networking test of optical equipment, radar and GPS on precision-guided weapons and unmanned aerial vehicle, time delay caused by equipment synchronism, communication transmission and data processing has a deep influence on guidance accuracy and reliabil- ity. In order to solve the problem, a new method to isochronously calibrate whole-networking time, acquire time delay accurately and fix it with the least-square method was introduced. Then a time delay correction model was proposed. It has been proved that the method can significantly improve equipment guidance accuracy, stability and reliability in the networking test, which provides strong technical support for remote distance and high-precision trajectory parameters measurement.