|
Abstract:
This report contains a description and performance evaluation of the matrix calibration method developed by the author in 1995 for the receive antenna array in the high frequency surface wave radar (HFSWR) at Cape Race, Newfoundland. The evaluation compares this method with two other methods: (a) the phase-only calibration method being used, and (b) an assumed gain-and-phase method that equalizes the complex element output amplitudes of signals in the boresight direction. The results showed that the matrix calibration method had the most accurate direction estimates, the narrowest spectral peaks, the best resolution of closely space targets, and the lowest signal-to-interference-plus- noise ratio (SINR) threshold for target detection. The phase-only and gain-and- phase methods had false target tracks and direction-dependent biases in direction estimates. The phase-only method also had a line splitting problem. Based on the difference in SINR thresholds for target detection, the matrix calibration method could increase the present maximum nighttime target detection range of the HFSWR by more than 50% in situations where the interference is highly directional and extremely strong.
| Description: |
Technical rept. |
| Pages: |
92 |
| Report Date: |
DEC 2001 |
| Report Number: |
A769893 |
Report Unavailable |
| This title is unavailable from Storming Media. We do not know when it might be available, if at all. We list the report on our site for bibliographic completeness, to help our users know what other work has been performed in this field. Please note that as with all titles on this site, we do not have contact information for any of the authors. Nor can we give any suggestions on how one might obtain this report. |
|
|
|
|
|
Keywords relating to this report:
Email This Abstract
