发明名称 |
Active array self calibration |
摘要 |
A process for collecting phase and amplitude calibration data for an active array system without the use of external sensors. The relative phase and amplitudes of adjacent T/R modules are determined when viewed through the entire array system. The calibration process involves collecting and storing these phases and amplitudes for future use. A pulse-to-pulse phase or amplitude modulation mode is employed. An element is commanded into this mode to separate its signal (in frequency) from competing signals and leakages from the surrounding modules. A T/R inversion command allows for a single element to be switched to a transmit state while the remainder of the array is in the receive state. This provides for a reference signal during receive calibration, and for single module testing during transmit calibration.
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申请公布号 |
US5682165(A) |
申请公布日期 |
1997.10.28 |
申请号 |
US19960643132 |
申请日期 |
1996.05.02 |
申请人 |
HUGHES ELECTRONICS |
发明人 |
LEWIS, GIB F.;BOE, ERIC N. |
分类号 |
G01R29/10;H01Q3/26;H01Q21/00;(IPC1-7):G01S7/40 |
主分类号 |
G01R29/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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