首先对“卫星集群概念研究”一文提出不同意见，认为“卫星集群”不是新概念，而是常用名词“星群”。随后对星群、星座与编队飞行（含F6项目）的概念及相互区别进行明确论述；对星座和编队飞行的分类、特点、优势、应用、发展概况以及它们之间的区别作了较详细论证。%In the paper, firstly, the article "Research on in Vol. 21 No. 4 issue of the Spacecraft Engineering is Conception of Satellite Cluster" published questioned. It is pointed out that satellite cluster is not a new concept as described in the article, but a common noun. Secondly, the con- cepts of and the distinction among cluster, constellation and formation flying (including F6) are given;Finally, the classification, characteristics, applications and development of constellation and formation flying, and the difference between them are also detailedly argued.
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