系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

全随机跳频脉冲信号设计与处理

赵德华, 毛智能, 位寅生   

  1. (哈尔滨工业大学电子与信息工程学院, 黑龙江 哈尔滨 150001)
  • 出版日期:2014-03-24 发布日期:2010-01-03

Full-random hopped-frequency waveform design and processing

ZHAO Dehua, MAO Zhineng, WEI Yinsheng   

  1. (School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China)
  • Online:2014-03-24 Published:2010-01-03

摘要:

对于高频雷达系统,通常很难找到一段连续可用的“寂静”频带,为了获得大的距离分辨带宽,可以离散地利用多段可用频带。然而,信号频谱的离散性会造成较高的距离旁瓣。所研究的全随机跳频脉冲信号,通过控制不同频率脉冲出现的概率可以获得较低的距离旁瓣。研究了全随机跳频脉冲信号自相关函数的统计特性,并给出了可用频带连续及非连续两种情况下的信号设计方法。

Abstract:

For the high frequency radar system, it is difficult to find a clear wideband for operation. In order to obtain a high range resolution, transmitting/receiving waveform with discontinuous frequency bands is proposed. However, spectrum discontinuity of waveform will result in high range sidelobes. The full-random hoppedfrequency waveform for sidelobe suppression is investigated. By controlling the occurrence probability of different frequencies, full-random hopped-frequency waveform can achieve a low sidelobe. Statistical characteristics of the autocorrelation function are analyzed, and the waveform design methods on both continuous and discontinuous band are also given.