基于无限长混沌序列的卫星扩频测控系统

Satellite Spread Spectrum TT&C Telecommunication System based on Infinite-length Chaotic Sequence

介绍了无限长混沌扩频序列的卫星测控系统的原理和方案,对无限长混沌序列的相关性能进行了仿真和分析,从而论证混沌码扩频测控体制的可行性。提出了开环测距方法解决无限长混沌扩频序列测距问题。对该系统的误码性能进行了理论分析和仿真,结果表明,无限长混沌序列改善了传统扩频测控系统的误码性能,降低了传输信号的截获率,为无限长混沌序列在卫星测控通信领域的应用提供了可选的方案。

The principle and scheme of infinite-length chaotic of satellite spread spectrum TT＆C Telecommunication is described, and the relevant performance of infinite-length chaotic sequence is simulated and analyzed, thus to verify the feasibility of spread spectrum TT＆C system based on chaotic code. An open-loop range measurement method is proposed, which could solve the ranging problem effectively. The BER （Bit-Error-Rate） performance of this system is analyzed and simulated, and the analysis and simulation indicates that the infinite-length chaotic sequence could improve the BER performance of the conventional satellite spread spectrum TT＆C telecommunication system and reduce the interception probability of the transferred signal, thus provide a good choice for the application of infinite-length chaotic sequence in the field of satellite spread spectrum TT＆C telecommunication.