跳频脉冲雷达目标的距离-多普勒成像
RANGE-DOPPLER IMAGING OF TARGETS VIA A HOPPED-FREQUENCY PULSES RADAR
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摘要: 该文采用跳频脉冲信号作为成像雷达信号形式,研究了一种雷达等效转台目标距离-多普勒成像的新算法。与常规步进频率雷达傅里叶变换成像算法相比,该算法具有多普勒不模糊范围大的特点,因而克服了步进频率雷达成像算法容易产生多普勒混叠的缺点。计算机仿真结果表明了该算法的有效性。
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关键词:
- 跳频脉冲; 雷达成像; 距离-多普勒像
Abstract: With adoption of the hopped-frequency pulses as a radar waveform for imaging targets,a novel algorithm for range-Doppler imaging of rotating targets is proposed.Compared with the stepped-frequency radar Fourier transform(FT) imaging algorithm,the algorithm is characterized by large unambiguous Doppler window that eliminates Doppler confusion occasionally arising via the stepped-frequency radar FT imaging algorithm.Computer simulation results are given to confirm the effectiveness of the proposed algorithm. -
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