Abstract
Modulated stepped frequency radar is a system to get high-resolution range profile with the problem of redundancy. So extracting method is presented to eliminate such redundancy and get the true position of target. In this system, target motion is the main factor to influence its performance. Characteristics of extracting method, the effects of velocity and velocity estimated error on this method are analyzed here. In order to overcome the influence of return pulse motion, an improved extracting method is provided. The capability of this improved method is good with accurate velocity estimation, but decreases with increasing velocity estimated error. The velocity estimated error limit is addressed to reduce the problem caused by it as far as possible. In addition, an amplitude interpolating method is given to resolve the range-coupling shift caused by velocity estimated error. Computer simulation results validate the correctness of theory analysis. These two suggested method can settle the key problems of target moving in the signal processing of modulated stepped frequency radar and provide foundation for realization of such radar system.
| Original language | English |
|---|---|
| Pages (from-to) | 34-37 |
| Number of pages | 4 |
| Journal | Tien Tzu Hsueh Pao/Acta Electronica Sinica |
| Volume | 28 |
| Issue number | 12 |
| Publication status | Published - Dec 2000 |
Keywords
- High-resolution range
- Modulated stepped frequency
- Moving target