| 陆扬,杨家庚,薛飞,张瑶.一种消除测速模糊的梳状谱信号设计方法[J].,2015,34(2):158-162 |
| 一种消除测速模糊的梳状谱信号设计方法 |
| A comb signal design method that eliminated the speed ambiguity |
| 投稿时间：2014-05-13 修订日期：2015-03-03 |
| 中文摘要: |
| 相比于传统信号,梳状谱具有更好的混响抑制能力,但其容易产生多普勒测速模糊,为了解决这一问题,本文设计了一种新的几何梳状谱信号波形设计方法,通过分析测速模糊产生的原因,在传统频点计算方法的基础上,通过在信号频点计算公式中加入一组抗多普勒频率间隔来降低频点的重合。仿真分析证明,本文的梳状谱信号设计方法有效的消除了速度搜索时频谱重叠的情况,无论在噪声还是混响限制条件下均可以获得一个明显的输出峰值,避免了测速模糊的情况,获得比传统信号更好的检测性能。 |
| 英文摘要: |
| Compared to the traditional signal, the comb spectrum signal have better reverberation suppression ability, but it is easy to produce Doppler velocity ambiguity, to solve this problem, this paper proposed a new geometric comb spectrum signal waveform design method, by analyzing the reason of speed fuzzy, based on the conventional calculation method, by adding a set of anti-Doppler frequency interval to reduce the frequency coincidence, simulation results showed that, the proposed method eliminate the spectrum overlap effectively when searching by speed, in both the noise and reverberation situation, this signal can get an obvious output peak, avoid the speed fuzzing, have better detection performance than traditional signal. |
| DOI：10.11684/j.issn.1000-310X.2015.02.013 |
| 中文关键词: 梳状谱信号,多普勒速度模糊,信号设计 |
| 英文关键词: Comb-Spectrum Signals,Doppler speed ambiguity,signal design |
| 基金项目:(号码) |
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| 摘要点击次数: 2293 |
| 全文下载次数: 2752 |
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