| 一种基于频带扩展的高精度时差测量方法 |
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| 引用本文： | 曹卫星,张文,王征炬. 一种基于频带扩展的高精度时差测量方法[J]. 电子信息对抗技术, 2012, 27(3): 28-31 |
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| 作者姓名： | 曹卫星 张文 王征炬 |
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| 作者单位： | 电子信息控制重点实验室,成都,610036 |
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| 摘 要： | 现代LPI雷达采用宽带设计后,波形设计一般采用包络加权,加权后的包络前沿上升缓慢,造成传统基于脉冲前沿的短基线时差测向法的时差测量精度无法满足测向要求。提出一种基于频带扩展的方法,可以对接收的脉冲频谱进行加权,获得较陡的视频脉冲前沿,可以较大地提高前沿上升缓慢的脉冲的时差测量精度。
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| 关 键 词： | 短基线时差测向 脉冲前沿时差提取 有效频带扩展 |
A High Precision TDOA Measurement Based on Spectrum Spreading |
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| CAO Wei-xing,ZHANG Wen,WANG Zheng-ju. A High Precision TDOA Measurement Based on Spectrum Spreading[J]. , 2012, 27(3): 28-31 |
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| Authors: | CAO Wei-xing ZHANG Wen WANG Zheng-ju |
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| Affiliation: | (Science and Technology on Electronic Information Control laboratory, Chengdu 610036, China) |
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| Abstract: | As wide band is employed in LPI radar nowadays, pulse envelop is usually weighted by window function, which causes envelope forward edge rising slowly. The short baseline direction finding algorithm by pulse forward edge cannot achieve precision DF. A new approach is illustrated by re-shaping the spectrum of received pulse, faster rising edge could be reformed and efficient bandwidth be extended and the TDOA precision could be increased highly. |
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| Keywords: | short baseline direction finding TDOA measurement by pulse leading edge efficient bandwidth spreading |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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