| RANGE AMBIGUITY DISTRIBUTION CHARACTERISTIC OF SPACEBORNE SAR AND ITS DESIGN CONSIDERATION |
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| 作者姓名： | 荆麟角 |
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| 作者单位： | Institute of |
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| 摘 要： | A new approach is proposed which can satisfy the range ambiguity requirement while keep the antenna width not to be enlarged and get the high quality image also. Here the chirp slope of the transmitted linear frequency modulated pulses is reversed alternately. Therefore, during the range compression significant portion of the ambiguous return which is due to the mismatching with the signal reference function is suppressed. The suggested method provides significant improvement in range ambiguity ratio and can be utilized in attaining wider swath.
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Range ambiguity distribution characteristic of spaceborne sar and its design consideration |
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| Jing Linjiao.RANGE AMBIGUITY DISTRIBUTION CHARACTERISTIC OF SPACEBORNE SAR AND ITS DESIGN CONSIDERATION[J].Journal of Electronics,1995,12(2):160-167. |
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| Authors: | Jing Linjiao |
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| Affiliation: | (1) Institute of Electronics, Academia Sinica, 100080 Beijing |
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| Abstract: | A new approach is proposed which can satisfy the range ambiguity requirement while keep the antenna width not to be enlarged and get the high quality image also. Here the chirp slope of the transmitted linear frequency modulated pulses is reversed alternately. Therefore, during the range compression significant portion of the ambiguous return which is due to the mismatching with the signal reference function is suppressed. The suggested method provides significant improvement in range ambiguity ratio and can be utilized in attaining wider swath. |
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| Keywords: | SAR Range ambiguity ratio(RAR) Incidence angle PRF Uniform distribution Cosine weighting Chirp |
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