Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2003-12-16
2008-09-09
Tarcza, Thomas H. (Department: 3662)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
C342S139000, C342S159000, C375S240000
Reexamination Certificate
active
07424405
ABSTRACT:
The invention refers to a method and an arrangement for signal processing for a target detecting device (1) where a return signal (8) is divided into two parallel branches where a first compression filter (15) compresses the signal in the first branch and where a second compression filter (17) compresses the signal in the second branch. The second compression filter (17) compresses the return signal (8) to a higher degree than the first compression filter (15). A delay filter (19) delays the first compressed signal (16a) compensating for a delay ΔT. Detectors (21, 22) processes the compressed signals (16b,18) giving rise to detector signals (21, 23). The detector signals are compared and the minimum value of the compared detector signals (21, 23) is selected for all time frames, giving rise to a first output signal (25) comprising the minimum values from the first and second detector signals (21, 23).
REFERENCES:
patent: 4096478 (1978-06-01), Chavez
patent: 4359735 (1982-11-01), Lewis et al.
patent: 5502747 (1996-03-01), McGrath
patent: 7308046 (2007-12-01), Studenberg, Jr.
International Search Report for PCT/SE2003/001958 dated Jul. 15, 2004.
Brainard Timothy A
Nixon & Vanderhye P.C.
Tarcza Thomas H.
Telefonaktiebolaget LM Ericsson (publ)
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