System for digital multi-bandwidth intermediate frequency...

Details System for digital multi-bandwidth intermediate frequency... System for digital multi-bandwidth intermediate frequency...

2007-09-25

2007-09-25

Tarcza, Thomas H. (Department: 3662)

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

With particular circuit

Digital processing

C375S219000, C342S159000

Reexamination Certificate

active

11066888

ABSTRACT:
Signal processing systems for radar installations are provided for simultaneous processing of one or more IF signals of dynamically varying frequency and bandwidth with a single analog signal path. The signal processing system includes, but is not limited to, a converter configured to digitize a return signal resulting in a digitized broadband signal, and a signal processor coupled to the converter. The signal processor includes a digital filter having a center frequency and a bandwidth, and the digital filter is configured to select a signal from the digitized broadband signal. The selected signal has a center frequency. The signal processor is configured to match the center frequency of the digital filter with the center frequency of the selected signal, and adjust the bandwidth of the digital filter based on the selected signal.

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Hunt Engineering—“Digital Down Conversion (DDC) Theory”—first on Jun. 26, 2003 and last revision on Jan. 8, 2006.
Holger Berndt* and Hans-Joachim Jentschel—ADC Residual Dynamic Range Constraints in Multistandard Mobile Terminals employing Wideband-IF Sampling.

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