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异步应答激光测距可实现卫星距离及星地时差测量。本文给出的主波时差公式与经典公式,以及一种拟工程实现、且与异步应答激光测距原理相同的无线电测距方法给出的工程应用公式不同。为了探求正确的主波时差公式,掌握这种测距体制的测距精度,进而验证异步应答激光测距体制的工程可行性,本文设计并开展了异步应答激光测距技术验证实验,利用两个地面测距终端对卫星反射测距模拟了星地异步应答激光测距过程。该实验是我国对异步应答激光测距体制的首次实践。实验研究结果表明,异步应答激光测距可用于两终端之间距离和主波时差的精确测量,且本文给出的主波时差公式正确,经典公式与应用公式存在不妥之处。
Asynchronous response laser ranging can achieve satellite distance and satellite time difference measurement. The formula of the main wave time difference and the classical formula given in this paper, as well as a kind of engineering implementation, and the same radio range finding method with asynchronous response laser ranging principle give different engineering application formulas. In order to explore the correct formula of the main wave-time difference and master the ranging precision of the ranging system, and then validate the feasibility of the ASR laser ranging system, this paper designs and implements the verification experiment of asynchronous response laser ranging technology, Terrestrial ranging terminal to satellite reflection ranging simulation star asynchronous laser ranging process. This experiment is our country’s first practice of asynchronous laser ranging system. Experimental results show that asynchrony laser ranging can be used to accurately measure the distance between two terminals and the main wave time difference. The formula of the main wave time difference given in this paper is correct, and the classical formulas and application formulas are not suitable.