Adaptive, fault-tolerant narrowband filterbank

Details Adaptive, fault-tolerant narrowband filterbank Adaptive, fault-tolerant narrowband filterbank

1983-11-04

1987-09-15

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Receiver

342162, 342169, 342194, 364724, G01S 740

Patent

active

046942980

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.

REFERENCES:
patent: 4093989 (1978-06-01), Flink et al.
patent: 4375640 (1983-03-01), Harvey
patent: 4536764 (1985-08-01), Freeman
IEEE Transactions on Acoustics, Speech & Signal Proceedings, vol. ASSP-29, No. 3, Jun. 1981, part III, pp. 679-683.
1980 IEEE International Symposium on Circuits and Systems Proceedings, Houston, Texas, 28th-30th Apr. 1980, pp. 142-146.
Frequenz, vol. 30, No. 9, Sep. 1976, pp. 238-243.
International Conference Radar-82, London, GB, 18th-20th Oct. '82, pp. 496-500, Y. H. Gong et al.

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