主动自导回波信号的非线性动力学特性

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Nonlinear Dynamic Characteristics of Active Homing Echo Signal

1.
The 705 Research Institute, China Shipbuilding Industry Corporation, Xi′an 710075, China
2.
Kunming Shipborne Equipment Research & Test Center, Kunming 650051, China
3.
Science and Technology on Underwater Information and Control Laboratory, Xi′an 710075, China

摘要: 以非线性动力学的基本理论和目标回波信号的非线性化为理论基础, 分别讨论了正弦信号、主动自导回波信号以及经过滤波处理后的主动自导回波信号的相轨迹运动特性。对一定数量的实测主动自导回波信号数据进行了仿真处理, 仿真结果表明, 经滤波处理后的主动自导回波信号具有非线性特性, 且其相轨迹运动特性及点距和特征参数均成一定的规律性, 具有可分性。
- 主动自导回波信号 /
- 目标回波信号 /
- 相轨迹 /
- 点距和
Abstract: We discuss the phase trajectory motion characteristic of the sinusoidal signal, the active homing echo signal, and the filtered active homing echo signal based on the theories of nonlinear dynamics and nonlinearization of target echo signal. And we conduct a simulation with a certain number of measured active homing echo signal data. Simulation results indicate that the filtered active homing echo signal shows nonlinear characteristics, and its phase trajectory mo-tion characteristic and point distance sum-based parameter exhibit certain regularity and separability.
- active homing echo signal /
- target echo signal /
- phase trajectory /
- point distance sum-based

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