In response to the problem of fast,accurate,and efficient positioning and recovery of debris and memory in aircraft flight experiments in the fields of aviation,aerospace,national defense,and military industry,an innovative satellite communica-tion method combining RNSS and RDSS and domestic devices including domestic microcontrollers are used to design a highly reli-able and high-precision nationwide localization system for landing point positioning.After various experiments and applications in complex and harsh environments,the positioning accuracy of the system can be as high as 5 m.The communication frequency of bei-dou short messages is 2 times/min,and the packet loss rate is less than 5%.The large capacity lithium battery can ensure that the system can work continuously for up to 4 hours.It meets the positioning and recycling needs of wreckage and storage,with character-istics such as small size,high accuracy,high reliability,and strong real-time performance.Currently,it has been applied in a cer-tain project.
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