中圖分類號(hào)： TN927；V55 文獻(xiàn)標(biāo)識(shí)碼： A DOI：10.16157/j.issn.0258-7998.212459 中文引用格式： 鮑大志,，邢斯瑞,，孫偉，等. 衛(wèi)星擴(kuò)頻測(cè)控基帶系統(tǒng)設(shè)計(jì)[J].電子技術(shù)應(yīng)用,，2022,，48(9)：81-85. 英文引用格式： Bao Dazhi，Xing Sirui,，Sun Wei,，et al. Design of baseband system of satellite spread spectrum TT&C[J]. Application of Electronic Technique，2022,，48(9)：81-85.
Design of baseband system of satellite spread spectrum TT&C
Abstract： The satellite tracking telemetry and command(TT&C) subsystem is responsible for transmitting telemetry and receiving remote control signals between the satellite and the ground station. Spread Spectrum TT&C system has gradually become the mainstream TT&C mode because of its strong anti-interference, good confidentiality and easy to realize multi Satellite TT&C. In the TT&C frequency band, X frequency band has become the main TT&C frequency band used in commercial spaceflight due to its rich frequency resources and openness to commercial TT&C. According to the requirements of low orbit satellite TT&C subsystem, a baseband system of X band spread spectrum TT&C transponder is designed, which can transmit and receive X band spread spectrum TT&C signal. By optimizing the design of 2D acquisition and tracking modules, the system can meet the performance requirements of low orbit satellites under high dynamic Doppler.
Key words : satellite TT&C；baseband,；acquisition and tracking,；Doppler
