Self-correcting loop for joint estimation-calibration in adaptive radar

Weichen Ye, Yeheskel Bar-Ness, Alexander M. Haimovich

Research output: Contribution to conferencePaperpeer-review


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 languageEnglish (US)
Number of pages5
StatePublished - 1997
EventProceedings of the 1997 IEEE National Radar Conference - Syracuse, NY, USA
Duration: May 13 1997May 15 1997


OtherProceedings of the 1997 IEEE National Radar Conference
CitySyracuse, NY, USA

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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