Sidelobe canceller with correlation signal weight sampling during transient
US6121914A · kind A · utility
16Cited by
13References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 17, 1975 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 17, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/2813
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An intermediate frequency sidelobe canceller of the kind including a cancellation loop and switch means for sampling and holding correlation weights present in the loop, affording enhanced cancellation and reduced loop lock-on time. This capability is achieved by provision of means for control of the sample-hold switch means so as to limit duration of the sampling interval to an optimum value substantially shorter than the loop stabilization time. Such shorter sampling interval may be either of fixed duration or adaptively controlled in response to one or more loop operating parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.