Rockwell Collins, Inc.

Kent D Benson

Robert J Frank

Carlos J Chavez

Dana J Jensen

Richard L Robertson

Scott J F Zogg

Michael N Newhouse

Karl F Hoech

Gunther B Frank

Bruce S Kloster

Daniel M Zange

Joseph F Jiacinto

David K Baugh

Robert K Fahler

A spread spectrum communication system includes a transceiver configured to transmit a spread spectrum waveform. The spread spectrum waveform comprises transmitted signals at varying frequencies within a radio frequency spectrum of operation. The frequency variation is controlled according to a hopping sequence. A spectral sensor of the communication system is configured to dynamically scan the radio frequency spectrum of operation and to generate channel occupancy data based upon the scans. A real time hopping sequence generator is configured to dynamically generate the hopping sequence in real time as a function of the channel occupancy data.

Cognitive spectral sensor-based PN hopping/spreading sequence generator

A method and apparatus for signal acquisition with transmit blanking compensation compensates for collisions between a desired received signal and a transmitted signal. A blanking block blanks a received signal when the transmitted signal is transmitted and stops blanking when the transmitted signal stops to provide a received signal with blanking. A correlation block correlates the received signal with blanking with a known sequence of symbols corresponding to the desired received signal and outputs a correlation metric and a number of symbols blanked. Means for adjusting the correlation metric or a variable threshold using the number of symbols blanked are provided. A decision block compares the adjusted correlation metric to a fixed threshold or the correlation metric to the variable threshold. If the adjusted correlation metric exceeds the threshold or if the correlation metric exceeds the variable threshold, the decision block determines that the desired signal is detected.

Signal acquisition with transmit blanking compensation

Growing community of inventors

Marion, IA, United States of America

Kent D Benson