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- Title
复包络重采样超宽带目标信号模拟方法.
- Authors
刘奇; 周良臣; 周仕松
- Abstract
For the high-precision simulation of ultra-wideband(UWB) and high-dynamic target signals, a complex envelope resampling simulation method is proposed through detailed analysis of the impact of target motion on the envelope and frequency of the UWB signal. The method calculates the re-sampling time in real time according to the time-varying distance delay of the target, and generates the complex baseband sequence of the target signal with arbitrary precision interpolation. Compared with the traditional Doppler frequency offset model simulation method, this method accurately depicts the real-time expansion and contraction characteristics of the target signal on the time scale. It can not only better simulate the time varying Doppler characteristics of high dynamic targets and the envelope change, but also retain the initial phase characteristic of the target signal. The effectiveness of the proposed method is verified through the experiment of UWB target signal simulation.
- Subjects
SIMULATION methods &; models; ULTRA-wideband devices; BASEBAND; INTERPOLATION
- Publication
Telecommunication Engineering, 2021, Vol 61, Issue 12, p1586
- ISSN
1001-893X
- Publication type
Article
- DOI
10.3969/j.issn.1001-893x.2021.12.018