Abstract
It is well known that pointing and random angle errors degrade the performance of adaptive radar quickly. A joint adaptive estimation-calibration (JEC) algorithm is proposed to provide on-line look direction corrections and array calibration. The new algorithm is presented in the context of a generalized sidelobe canceler (GSC). The proposed algorithm uses the array output to generate a control signal for steering vector corrections, which in turn yield higher signal-to-noise and interference ratio (SNIR) at the array output. Doppler technique is used to provide cleaner reference of target signal, which results in better correction of the steering vector. A simple case is investigated to explain how the scheme works and steady state condition analysis is provided. For an 8-element antenna array, the new algorithm is demonstrated by simulations, which show that the output SNIR is improved by the correction of pointing and random angle errors.
| Original language | English (US) |
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| Pages | 320-324 |
| Number of pages | 5 |
| State | Published - 1997 |
| Event | Proceedings of the 1997 IEEE National Radar Conference - Syracuse, NY, USA Duration: May 13 1997 → May 15 1997 |
Other
| Other | Proceedings of the 1997 IEEE National Radar Conference |
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| City | Syracuse, NY, USA |
| Period | 5/13/97 → 5/15/97 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering