Satellite-borne S-band spread spectrum measurement and control response system based on ASIC architecture

Abstract

The invention discloses a satellite-borne S-band spread spectrum measurement and control response system based on an ASIC architecture, and relates to field of satellite-borne measurement and controltransponder design. The satellite-borne S-band spread spectrum measurement and control response system comprises a duplexer, an uplink mixing module, an analog-to-digital conversion module, an ASIC module, a crystal oscillator, a digital-to-analog conversion module and a downlink mixing module. A RF channel adopts a miniaturized design, and integrates a transmitting channel and a receiving channelinto one module to complete frequency conversion processing of a remote telemetry signal. A baseband signal processing module uses a dedicated ASIC chip to perform the modulation and demodulation ofthe remote telemetry signal, replaces an original FPGA + DSP architecture spread spectrum transponder, and improves the adaptability of the transponder against single-space and other space environments. According to the satellite-borne S-band spread spectrum measurement and control response system based on an ASIC architecture, the problem that the track is susceptible to the space environment such as the space single particle is solved, the transponder is more stable and reliable, and meets the requirement of small size, light weight and low power consumption proposed by the satellite to thetransponder.

Description

Technical field [0001] The invention relates to the design field of a spaceborne measurement and control transponder, in particular to a spaceborne S-band spread spectrum measurement and control response system based on an ASIC architecture. Background technique [0002] In recent years, the spread-spectrum measurement and control transponder has assumed more and more important satellite communication and measurement functions in the aerospace measurement and control system to complete satellite remote control, telemetry, ranging, speed measurement and other functions. Compared with traditional transponders, spread-spectrum measurement and control transponders have been widely used due to their outstanding technical advantages in measurement accuracy, anti-interference, and anti-interception. [0003] During the flight in orbit, 1. SRAM-type FPGA single-event flips caused by the incidence of high-energy particles in space, which affect the normal operation of the spread-spectrum me...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a spaceborne S-band spread spectrum measurement and control response system based on ASIC architecture, which solves the problem that the on-orbit is easily affected by space environments such as space single particles, and makes the transponder more efficient. Stable and reliable, meeting the satellite's requirements for transponders with small size, light weight and low power consumption

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