一种星载遥测采集电路优化设计

为了解决传统卫星平台配套使用的遥测采集模块数字量遥测回传延时、缓存成本高的问题，研制了一款基于FPGA控制、无需硬件缓存的即采即发遥测采集电路。该电路收到遥测请求指令后，可实现模拟量实时采集实时发送，使在相同遥测采集周期的条件下数字量遥测回传的时延明显降低，解除了对存储器件的依赖性，降低了研制成本，可为星务平台提供高实时的遥测参数，为平台更好地实现任务规划提供操作依据。

An optimized design of a space-borne telemetry acquisition circuit

In order to solve the problems of digital telemetry return delay and high caching cost of telemetry acquisition module used in the traditional satellite platforms, a capture-and-send telemetry acquisition circuit based on FPGA control without hardware caching was designed. After receiving the command of telemetry request, the circuit could realize real-time capture-and-send of analog quantity. Under the condition of the same telemetry acquisition period, the delay of digital quantity telemetry and transmission is significantly reduced, Which relieves the dependence on storage devices and reduces the development cost. It may provide high real-time telemetry parameters for the satellite service platform and provide operational basis for the platform to better realize the mission planning.