In order to meet the requirements of data collecting and processing of micro/nano satellites,an integrated payloads data processing unit is designed,which is used as the hub for data exchange between payloads and satellite.This unit has the functions of collecting multi-channel digital data and high precision analog data,receiving incoming data,decoding instructions and load mode control.Through the dual control bus redundancy and fault bus dynamic switch,the communication reliability is improved.This unit is of low power consumption,high integration degree and worthy of using in micro/nano satellites.%为满足微纳卫星多载荷数据采集处理的需求,设计了一种集成化载荷数据处理单元,该单元作为载荷与微纳卫星进行数据交换的枢纽,具有多路载荷数字量和高精度模拟量采集通道,且具备接收注入数据、进行指令解码、载荷模式控制功能.通过双控制总线冗余、故障总线动态切换,提高了通信可靠性.该单元资源需求低,集成度高,具有一定的通用性.
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