Adaptive, fault-tolerant narrowband filterbank
US4694298A · kind A · utility
8Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1983 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Nov 4, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An adaptive, fail-soft digital filterbank for digitized Doppler-modulated video signals. A plurality of modules are controlled by the impulse filter weighting technique to each respond to a set of discrete Doppler frequencies. A built-in test feature is included, the module inputs being multiplexed between system digitized video and synthetic signals to continuously confirm proper operation. Module failures are recognized by the control (programming) circuitry and spare modules can be activated. Control and communications link circuitry is constructed with multiple redundancy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.