Spurious effects of analog-to-digital conversion nonlinearities on radar range-Doppler maps

被引：0
|
作者：
Doerry, A. W. [1 ]
Dubbert, D. F. [1 ]
Tise, B. L. [1 ]
机构：
[1] Sandia Natl Labs, Albuquerque, NM 87185 USA
来源：
RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI | 2015年 / 9461卷
关键词：
radar; spurs; ADC; analog-to-digital; interference; nonlinearity;
D O I：
10.1117/12.2075741
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
High-performance radar operation, particularly Ground Moving Target Indicator (GMTI) radar modes, are very sensitive to anomalous effects of system nonlinearities. System nonlinearities generate harmonic spurs that at best degrade, and at worst generate false target detections. One significant source of nonlinear behavior is the Analog to Digital Converter (ADC). One measure of its undesired nonlinearity is its Integral Nonlinearity (INL) specification. We examine in this paper the relationship of INL to radar performance; in particular its manifestation in a range-Doppler map or image.
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页数：16
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