靶场GPS数据实时传输对安控时延的影响及修正

Correction of Time-Delay for GPS Data Real-Time Transmission in Range

靶场对飞行器进行安控试验时需要掌握安控时延,而在实时传输安控信息中产生时延较大的信息为GPS数据,并对安控实时判决有很大的影响,针对GPS数据实时传输时延产生的原因进行了分析,提出采用最小二乘拟合法进行修正。验证结果表明,这一方法在实际应用中可有效提高安控的实时性,为试验指挥员的安控判决提供了充裕的时间。

In range, it is important to control time-delay of safety control when the aircrafts are tested. But long time-delay of GPS data will come into being in real-time transmission of the safety control information. It greatly affects the safety control judgment. This paper analyses the reason of time-delay of the GPS data transmission, and puts forward a correctional method based on linear least-square method. The testing result shows the method can improve real-time demand of safety control in the practical application. The method offers enough time for test commander consequently.