Abstract
LFM is one of widely used methods of ISAR. Nonlinearity in frequency sweep has some effects on the quality of imaging. Especially in the high-frequency, broad-band and short-tune frequency sweep, frequency swept nonlinearity of LFM curve can hardly be distributed. Based on the theory of ISAR, using simple maths methods, the method of using arbitrary times polynomial simulation for the nonlinearity testing of LFM signal is studied for the first time. Finally, the correctness of this method is approved by one experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 150-152 |
| Number of pages | 3 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 27 |
| Issue number | 2 |
| State | Published - Apr 2001 |
| Externally published | Yes |
Keywords
- Curve fitting
- Image formation
- LFM
- Non-linear