LFM信号误差对SAR成像的影响分析

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Abstract The definition of frequency linearity of LFM(Lincar Frequency Modulation) is discussed in this paper. The causes for frequency linearity, phase error and spectrum unevenness during the process of generation with digital method are analyzed. The effects of these errors on SAR image are also described. Finally, the simulation results are given in this paper.

Key words： LFM Frequency linearity Spectrum unevenness Phase error

Received: 21 August 2001

PACS:

TN951

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	Zhang Qunying
	Yang Xuexian

Cite this article:

Zhang Qunying,Yang Xuexian. Effect of LFM error on the image of SAR[J]. , 2003, 25(2): 229-234 .

URL:

http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2003/V25/I2/229

[1]	JIN Yan, GAO Duo, JI Hongbing. Parameter Estimation of LFM Signals Based on Synchrosqueezing Chirplet Transform in Complicated Noise[J]. JEIT, 2017, 39(8): 1906-1912.