综合电离层探测系统波形设计

Design of the waveform of synthetic ionospheric sounding system

综合电离层探测系统包括多种不同的探测设备,若探测设备发射信号之间具有优良的正交性则可以提高系统性能。完全互补序列由若干组互补序列组成,每组互补序列之间完全正交,根据此特性,提出利用完全互补序列作为综合探测系统的发射信号。对完全互补序列的构造方法进行了描述,对其性能进行了理论分析及仿真,仿真结果表明:完全互补序列满足正交信号的要求。研究了完全互补序列在综合电离层探测系统中的应用问题,建立了基于完全互补序列对的电离层探测系统模型。结果表明:将其应用到综合电离层探测系统是可行的。

Synthetic ionospheric sounding system, including a number of different subsystems,which performance can be effectively improved by transmitting perfect orthogonal signals. The complete complementary sequence （CCS） is composed of several complementary orthogonal sequences. Based on it, waveform of synthetic ionospheric sounding system transmitting signals is proposed. The way of CCS construction is described and the performance of CCS is studied, The results of computer simulation show that CCS is satisfied with the requirement of the orthogonal signals. The application of CCS in synthetic ionospheric sounding system is studied and the system model based on CCS is established. The results prove the rationality of CCS applied in synthesis ionospheric sounding system.