Space-time adaptive radar performance in heterogeneous clutter
Traditional analysis of space-time adaptive radar generally assumes the ideal condition of statistically independent and identically distributed (IID) secondary data. To the contrary, measured data suggests realistic clutter environments appear heterogeneous and so the secondary data is no longer II...
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| Veröffentlicht in: | IEEE transactions on aerospace and electronic systems 2000-04, Vol.36 (2), p.621-633 |
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| container_title | IEEE transactions on aerospace and electronic systems |
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| creator | Melvin, W.L. |
| description | Traditional analysis of space-time adaptive radar generally assumes the ideal condition of statistically independent and identically distributed (IID) secondary data. To the contrary, measured data suggests realistic clutter environments appear heterogeneous and so the secondary data is no longer IID. Heterogeneity leads to mismatch between actual and estimated covariance matrices, thereby magnifying the loss between the adaptive implementation and optimum condition. Concerns regarding the impact of clutter heterogeneity on space-time adaptive processing (STAP) warrant further study. To this end, we propose space-time models of amplitude and spectral clutter heterogeneity, with operational airborne radar in mind, and then characterize expected STAP performance loss under such heterogeneous scenarios. Simulation results reveal loss in signal-to-interference plus noise ratio (SINR) ranging between a few tenths of a decibel to greater than 16 dB for specific cases. |
| doi_str_mv | 10.1109/7.845251 |
| format | Article |
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Simulation results reveal loss in signal-to-interference plus noise ratio (SINR) ranging between a few tenths of a decibel to greater than 16 dB for specific cases.</description><subject>Air traffic control</subject><subject>Airborne radar</subject><subject>Clutter</subject><subject>Computer simulation</subject><subject>Covariance matrix</subject><subject>Heterogeneity</subject><subject>Interference</subject><subject>Matrices</subject><subject>Noise levels</subject><subject>Performance analysis</subject><subject>Performance loss</subject><subject>Radar</subject><subject>Radar clutter</subject><subject>Radar detection</subject><subject>Signal to noise ratio</subject><subject>Space technology</subject><subject>Spaceborne radar</subject><subject>Spectra</subject><issn>0018-9251</issn><issn>1557-9603</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0UtLxDAQAOAgCq6r4NlT8SBeuiZtnhdBFl-w4MG9h2k61S7ttiat4L83uouCBxcCk5l8TEKGkFNGZ4xRc6VmmotMsD0yYUKo1Eia75MJpUynJtYPyVEIq5hyzfMJuX7uwWE61C0mUEI_1O-Y-LjzSY--6nwLa4dJvU5ecUDfveAauzEkrhmHmB-TgwqagCfbOCXLu9vl_CFdPN0_zm8WqcuNGtKy0LyqQJaOFoxyCaCNAG4QwUlWKg5KZ6bgReYkSAWSCcmF0bSkBpTMp-Ri07b33duIYbBtHRw2DXy_xmaGcpVrsRtqmdEs07uhUpmIN0d4-S9kUrFc8ZzxSM__0FU3-nX8F6s1j8tI89vP-S4Ej5Xtfd2C_7CM2q8JWmU3E4z0bENrRPxh28NPB7OT7w</recordid><startdate>20000401</startdate><enddate>20000401</enddate><creator>Melvin, W.L.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on aerospace and electronic systems, 2000-04, Vol.36 (2), p.621-633 |
| issn | 0018-9251 1557-9603 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Air traffic control Airborne radar Clutter Computer simulation Covariance matrix Heterogeneity Interference Matrices Noise levels Performance analysis Performance loss Radar Radar clutter Radar detection Signal to noise ratio Space technology Spaceborne radar Spectra |
| title | Space-time adaptive radar performance in heterogeneous clutter |
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