With the increasingly frequent human activities in space, number of dead satellites and space debris has increased
dramatically, bring greater risks to the available spacecraft, however, the current widespread use of measuring equipment
between space target has a lot of problems, such as high development costs or the limited conditions of use. To solve this
problem, use radar multi-target measure error information to the space, and combining the relationship between target and
the radar station point of view, building horizontal distance decoding model. By adopting improved signal quantization
digit, timing synchronization and outliers processing method, improve the measurement precision, satisfies the
requirement of multi-objective near distance measurements, and the using efficiency is analyzed. By conducting the
validation test, test the feasibility and effectiveness of the proposed methods.