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arXiv 2002.11742eess.SP
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利用多音频正弦频率调制产生波形族

Generating Waveform Families using Multi-Tone Sinusoidal Frequency Modulation

David A. Hague

摘要:

本文提出了一种利用多音频正弦调频(MTSFM)波形模型生成具有低带内自相关/互相关函数(ACF/CCF)特性的波形族的方法。MTSFM波形的调制函数使用傅立叶级数展开来表示。傅立叶系数被用作一组离散参数,可以修改这些离散参数以优化波形族的属性。波形的ACF/CCF特性利用多目标优化问题进行优化。对每个目标函数进行加权,以强调低ACF或CCF旁瓣。得到的优化MTSFM波形除了具有专门设计的ACF/CCF特性外,还具有类似图钉的模糊函数。最重要的是,所得到的MTSFM波形家族具有理想的低峰均功率比(PAPR)和高频谱效率(SE),使得它们非常适合在实际雷达发射机上传输。

英文摘要:

This paper presents a method for generating a family of waveforms with low in-band Auto/Cross-Correlation Function (ACF/CCF) properties using the Multi-Tone Sinusoidal Frequency Modulated (MTSFM) waveform model. The MTSFM waveform's modulation function is represented using a Fourier series expansion. The Fourier coefficients are utilized as a set of discrete parameters that can be modified to optimize the waveform family's properties. The waveforms' ACF/CCF properties are optimized utilizing a multi-objective optimization problem. Each objective function is weighted to place emphasis on either low ACF or CCF sidelobes. The resulting optimized MTSFM waveforms each possess a thumbtack-like Ambiguity Function in addition to the specifically designed ACF/CCF properties. Most importantly, the resulting MTSFM waveform families possess both ideally low Peak-to-Average Power Ratios (PAPR) and high Spectral Efficiency (SE) making them well suited for transmission on practical radar transmitters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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